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Kubota L3540 Workshop Manual

Kubota L3540 Workshop Manual

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WORKSHOP MANUAL

TRACTOR

L3540,L4240,L5040,

L5240,L5740

KiSC issued 04, 2010 A

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January 19, 2025

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Summary of Contents for Kubota L3540

Page 1 WORKSHOP MANUAL TRACTOR L3540,L4240,L5040, L5240,L5740 KiSC issued 04, 2010 A...
Page 2 TO THE READER This Workshop Manual has been prepared to provide servicing personnel with information on the mechanism, service and maintenance of KUBOTA Tractor L3540, L4240, L5040, L5240 and L5740. It is divided into three parts, “General”, “Mechanism” and “Servicing” for each section.
Page 3 SAFETY INSTRUCTIONS L3540, L4240, L5040, L5240, L5740, WSM SAFETY INSTRUCTIONS SAFETY FIRST This symbol, the industry’s “Safety Alert Symbol”, is used throughout this manual and on labels on the machine itself to warn of the possibility of personal injury. Read these instructions carefully.
Page 4 SAFETY INSTRUCTIONS L3540, L4240, L5040, L5240, L5740, WSM SAFETY STARTING • Do not start the engine by shorting across starter terminals or bypassing the safety start switch. • Do not alter or remove any part of machine safety system. • Before starting the engine, make sure that all shift levers are in neutral positions or in disengaged positions.
Page 5 SAFETY INSTRUCTIONS L3540, L4240, L5040, L5240, L5740, WSM AVOID FIRES • Fuel is extremely flammable and explosive under certain conditions. Do not smoke or allow flames or sparks in your working area. • To avoid sparks from an accidental short circuit, always disconnect the battery negative cable first and connect it last.
Page 6 SAFETY INSTRUCTIONS L3540, L4240, L5040, L5240, L5740, WSM PREPARE FOR EMERGENCIES • Keep a first aid kit and fire extinguisher handy at all times. • Keep emergency numbers for doctors, ambulance service, hospital and fire department near your telephone. KiSC issued 04, 2010 A...
Page 7: Safety Decals
SAFETY INSTRUCTIONS L3540, L4240, L5040, L5240, L5740, WSM SAFETY DECALS The following safety decals are installed on the machine. If a decal becomes damaged, illegible or is not on the machine, replace it. The decal part number is listed in the parts list.
Page 8 SAFETY INSTRUCTIONS L3540, L4240, L5040, L5240, L5740, WSM KiSC issued 04, 2010 A...
Page 9 SAFETY INSTRUCTIONS L3540, L4240, L5040, L5240, L5740, WSM KiSC issued 04, 2010 A...
Page 10: Specifications
SPECIFICATIONS L3540, L4240, L5040, L5240, L5740, WSM SPECIFICATIONS L3540 Model Manual Transmission Rear ROPS Center ROPS Model D1803-M-E2-EU1 Type Indirect injection vertical, water-cooled, 4-cycle diesel Number of cylinders Total displacement 1.826 L (111.4 cu.in.) 87 × 102.4 mm (3.4 × 4.0 in.)
Page 11 SPECIFICATIONS L3540, L4240, L5040, L5240, L5740, WSM L4240 Model Manual Transmission Rear ROPS Center ROPS CABIN CABIN Model V2203-M-E2-EU2 Type Indirect injection vertical, water-cooled, 4-cycle diesel Number of cylinders Total displacement 2.197 L (134.1 cu.in.) 87 × 92.4 mm (3.4 × 3.6 in.)
Page 12 SPECIFICATIONS L3540, L4240, L5040, L5240, L5740, WSM L5040 Model Manual Transmission Center ROPS CABIN CABIN Model V2403-M-TE3-EU1 Type Indirect injection vertical, water-cooled, 4-cycle diesel Number of cylinders Total displacement 2.434 L (148.5 cu.in.) 87 × 102.4 mm (3.4 × 4.0 in.)
Page 13 SPECIFICATIONS L3540, L4240, L5040, L5240, L5740, WSM L5240 Model Rear ROPS CABIN Model V2403-M-TE3-EU2 Type Indirect injection vertical, water-cooled, 4-cycle diesel Number of cylinders Total displacement 2.434 L (148.5 cu.in.) 87 × 102.4 mm (3.4 × 4.0 in.) Bore and stroke...
Page 14 SPECIFICATIONS L3540, L4240, L5040, L5240, L5740, WSM L5740 Model CABIN Model V2403-M-TE3-EU3 Type Indirect injection vertical, water-cooled, 4-cycle diesel Number of cylinders Total displacement 2.434 L (148.5 cu.in.) 87 × 102.4 mm (3.4 × 4.0 in.) Bore and stroke Engine Net power* 41.5 kW (56.4 PS)
Page 15 TRAVELLING SPEEDS L3540, L4240, L5040, L5240, L5740, WSM TRAVELLING SPEEDS [Manual Transmission Type] Model L3540 L4240 L5040 Creep gear shift lever High High High Tire size (Rear) 12.4-24 13.6-24 13.6-28 Range Shuttle Main gear km/h km/h km/h km/h km/h km/h...
Page 16 TRAVELLING SPEEDS L3540, L4240, L5040, L5240, L5740, WSM [GST Type] Model L5040 Creep gear shift lever High Tire size (Rear) 13.6-28 Shuttle shift Main gear shift km/h (mph) lever lever 1.77 (1.10) 0.20 (0.12) 2.51 (1.56) 0.28 (0.17) 3.24 (2.01) 0.36 (0.22)
Page 17 TRAVELLING SPEEDS L3540, L4240, L5040, L5240, L5740, WSM [HST Type] Model L4240 L5240 L5740 Tire size (Rear) 13.6-24 13.6-28 Speed Range gear H-DS lever km/h (mph) control pedal shift lever 3.5 (2.2) 3.4 (2.1) 3.6 (2.2) 7.1 (4.4) 7.0 (4.3) 7.3 (4.5)
Page 18 DIMENSIONS L3540, L4240, L5040, L5240, L5740, WSM DIMENSIONS [Rear ROPS Model : L3540, L4240 and L5240] KiSC issued 04, 2010 A...
Page 19 DIMENSIONS L3540, L4240, L5040, L5240, L5740, WSM [Center ROPS Model : L3540, L4240 and L5040] KiSC issued 04, 2010 A...
Page 20 DIMENSIONS L3540, L4240, L5040, L5240, L5740, WSM [CABIN Model : L4240, L5040, L5240 and L5740] KiSC issued 04, 2010 A...
Page 21 GENERAL KiSC issued 04, 2010 A...
Page 22: Table Of Contents
GENERAL CONTENTS 1. TRACTOR IDENTIFICATION ................. G-1 [1] MODEL NAME AND SERIAL NUMBERS..........G-1 [2] CYLINDER NUMBER ................G-3 [3] EMISSION CONTROL INFORMATION........... G-3 2. GENERAL PRECAUTIONS ................G-4 3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING .. G-5 [1] WIRING ..................... G-5 [2] BATTERY....................
Page 23: Tractor Identification
L3540, L4240, L5040, L5240, L5740, WSM 1. TRACTOR IDENTIFICATION [1] MODEL NAME AND SERIAL NUMBERS When contacting your local KUBOTA distributor, always specify engine serial number, tractor serial number and hour meter reading. (1) Tractor Identification Plate [A] Rear ROPS Model...
Page 24: Engine Serial Number
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Engine Serial Number The engine serial number is an identified number for the engine. It is marked after the engine model number. It indicates month and year of manufacture as follows. • Year of manufacture...
Page 25: Cylinder Number
• When servicing or repairing the engine, use an only replacement parts for that meets with the specific emission regulations, designated by the appropriate Kubota Parts List and perform all maintenance services listed in the appropriate Kubota Operator’s manual or in the appropriate Kubota Workshop Manual.
Page 26: General Precautions
Screws, bolts and nuts should be installed in their original position to prevent reassembly errors. • When special tools are required, use KUBOTA genuine special tools. Special tools which are not frequently used should be made according to the drawings provided.
Page 27: Handling Precautions For Electrical Parts And Wiring
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM 3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING To ensure safety and prevent damage to the machine and surrounding equipment, heed the following precautions in handling electrical parts and wiring. IMPORTANT • Check...
Page 28 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM • Securely clamp, being careful not to damage wiring. (1) Clamp (3) Clamp • Wind Clamp Spirally (4) Welding Dent (2) Wire Harness W10114580 • Clamp wiring so that there is no twist, unnecessary sag, or excessive tension, except for movable part, where sag be required.
Page 29: Battery
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM [2] BATTERY • Take care not to confuse positive and negative terminal posts. • When removing battery cables, disconnect negative cable first. When installing battery cables, check for polarity and connect positive cable first.
Page 30: Handling Of Circuit Tester
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM • Use sandpaper to remove rust from terminals. • Repair deformed terminal. Make certain there is no terminal being exposed or displaced. (1) Exposed Terminal (3) Sandpaper (2) Deformed Terminal (4) Rust W10123460 •...
Page 31: Lubricants, Fuel And Coolant
2 (with draft control) (if equipped) NLGI-1 bracket (GC-LB) Lift rod Lift cylinder Battery Moderate terminal amount Throttle cable Oiling Engine oil NOTE • *KUBOTA UDT or SUPER UDT fluid : KUBOTA original transmission hydraulic fluid. KiSC issued 04, 2010 A...
Page 32 2 (with draft control) (if equipped) NLGI-1 bracket (GC-LB) Lift rod Lift cylinder Battery Moderate terminal amount Throttle cable Oiling Engine oil NOTE • *KUBOTA UDT or SUPER UDT fluid : KUBOTA original transmission hydraulic fluid. G-10 KiSC issued 04, 2010 A...
Page 33 The oil used to lubricate the transmission is also used as hydraulic fluid. To insure proper operation of the hydraulic system and to complete lubrication of the transmission, it is important that a multi-grade transmission fluid is used in this system. We recommend the use of KUBOTA UDT or SUPER UDT fluid for optimum protection and performance.
Page 34: Tightening Torques
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM 5. TIGHTENING TORQUES [1] GENERAL USE SCREWS, BOLTS AND NUTS Screws, bolts, and nuts whose tightening torques are not specified in this Workshop Manual should be tightened according to the table below.
Page 35: Plugs
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM [3] PLUGS Material of opponent part Shape Size Ordinariness Aluminum N·m kgf·m lbf·ft N·m kgf·m lbf·ft R1/8 13 to 21 1.3 to 2.2 9.4 to 15 13 to 21 1.3 to 2.0 9.4 to 15...
Page 36: Maintenance
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM 6. MAINTENANCE Indication on hour meter Refe- Item Interval rence 50 100 150 200 250 300 350 400 450 500 550 600 650 700 page every Engine start system Check G-24 50 Hr...
Page 37 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Service Interval Refe- Item Interval rence 50 100 150 200 250 300 350 400 450 500 550 600 650 700 page every Check G-34 200 Hr HST oil line (HST) every Replace...
Page 38 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM (Only the Check Points for Tractor with CABIN) Service Interval Refe- Item Interval rence 50 100 150 200 250 300 350 400 450 500 550 600 650 700 page Air conditioner condenser...
Page 39: Check And Maintenance
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM 7. CHECK AND MAINTENANCE CAUTION • Be sure to check and service the tractor on a flat place with engine shut off, the parking brake on and chock the wheels. [1] DAILY CHECK To prevent trouble from occurring, it is important to know the condition of the tractor.
Page 40 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Checking Engine Oil Level CAUTION • Be sure to stop the engine before checking the oil level. 1. Park the machine on a flat surface. 2. Check engine oil before starting the engine or 5 minutes or more after the engine has stopped.
Page 41 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Cleaning Grille, Radiator Screen and Oil Cooler CAUTION • Be sure to stop the engine before removing the screen. 1. Check front grille and side screens to be sure they are clean of debris.
Page 42 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Checking Seat Belt and ROPS 1. Always check condition of seat belt and ROPS attaching hardware before operating tractor. 2. Replace if damaged. W1035535 Checking Clutch Pedal Free Travel CAUTION • When checking, park the tractor on flat ground, apply the parking brake, stop the engine and remove the key.
Page 43: Check Points Of Initial 50 Hours
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM [2] CHECK POINTS OF INITIAL 50 HOURS Changing Engine Oil CAUTION • Be sure to stop the engine before changing the oil. • Allow engine to cool down sufficiently, oil can be hot and can burn.
Page 44: Adjusting Clutch Pedal Free Travel
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Adjusting Clutch Pedal Free Travel CAUTION • When adjusting, park the tractor on flat ground, apply the parking brake, stop the engine and remove the key. 1. Slightly depress the clutch pedal and measure free travel “L” at top of clutch pedal.
Page 45: Replacing Hydraulic Oil Filter
6. Quickly tighten the filter until it contacts the mounting surface, then tighten it by hand an additional 1/2 turn only. 7. Fill with the new KUBOTA SUPER UDT fluid up to the upper notch on the dipstick. (See page G-9.) 8.
Page 46: Check Points Of Every 50 Hours
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM [3] CHECK POINTS OF EVERY 50 HOURS Checking Wheel Mounting Screws and Nuts Tightening Torque CAUTION • Never operate tractor with a loose rim, wheel, or axle. 1. Check wheel screws and nuts regularly especially when new. If there are loosened, tighten as follows.
Page 47 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Checking Engine Start System (HST Model) Test 1 : Switch for the speed control pedal. 1. Sit on operator’s seat. 2. Depress the speed control pedal to the desired direction. 3. Depress the clutch pedal fully.
Page 48: Lubricating Grease Fitting
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Lubricating Grease Fitting 1. Apply a small amount of multipurpose grease to the following points every 50 hours. If you operated the machine in extremely wet and muddy conditions, lubricate grease fittings more often.
Page 49: Check Points Of Every 100 Hours
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Oiling 1. Apply a small amount of engine oil to the hand throttle cable (1) and foot throttle cable (2). CAUTION • Be sure to stop the engine and remove the key before oiling.
Page 50 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Cleaning Air Cleaner Primary Element 1. Remove the air cleaner cover and primary element. 2. Clean the primary element : - When dry dust adheres to the element, blow compressed air from the inside turning the element. Pressure of compressed air must be under 205 kPa (2.1 kgf/cm...
Page 51 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Adjusting Fan Belt Tension CAUTION • Be sure to stop the engine before checking fan belt tension. 1. Stop the engine and remove the key. 2. Apply moderate thumb pressure to belt between pulleys.
Page 52 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Checking Battery Condition (To be continued) DANGER To avoid the possibility of battery explosion: For the refillable type battery, follow the instructions below. • Do not use or charge the refillable type battery if the fluid level is below the LOWER (lower limit level) mark.
Page 53 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Checking Battery Condition (Continued) Battery Charging CAUTION • When the battery is being activated, hydrogen and oxygen gases in the battery are extremely explosive. Keep open sparks and flames away from the battery at all times, especially when charging the battery.
Page 54 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Adjusting Parking Brake Lever CAUTION • Stop the engine and chock the wheels before checking parking brake. 1. Raise the parking brake lever to the parking position while counting the ratchet sound made by the parking brake lever.
Page 55: Check Points Of Every 200 Hours
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM [5] CHECK POINTS OF EVERY 200 HOURS Changing Engine Oil 1. See page G-21. W10320350 Replacing Engine Oil Filter Cartridge 1. See page G-21. W10344210 Replacing Transmission Oil Filter (HST Model) 1. See page G-22.
Page 56 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Adjusting Toe-in 1. Park the tractor on the flat place. 2. Inflate the tires to the specified pressure. 3. Turn steering wheel so front wheels are in the straight ahead position. 4. Lower the implement, lock the parking brake and stop the engine.
Page 57 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Checking Intake Air Line 1. Check to see that hose and hose clamps are tight and not damaged. 2. If hose and clamps are found worn or damaged, replace or repair them at once.
Page 58 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Cleaning Inner Air Filter (Cabin Model) 1. Remove the inner filter, and blow air from the direction opposite to the filter’s normal air flow. 2. Pressure of compressed air must be under 205 kPa (2.1 kgf/cm 30 psi).
Page 59: Check Points Of Every 400 Hours
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Checking Air Conditioner Condenser (Cabin Model) 1. Check the air conditioner condenser (1). 2. If dust and dirt, wash off all dirt and dust from the condenser (1) with a soft brush, use care not to damage or bend the fins.
Page 60 6. Quickly tighten the filter until it contacts the mounting surface, then tighten it by hand an additional 1/2 turn only. 7. Fill with the new KUBOTA SUPER UDT fluid up to the upper notch on the dipstick. (See page G-9.) 8.
Page 61: Check Point Of Every 600 Hours
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Changing Front Axle Case Oil CAUTION • Be sure to stop the engine before changing the front axle case oil. • Allow engine to cool down sufficiently, oil can be hot and can burn.
Page 62: Check Point Of Every 800 Hours
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM [8] CHECK POINT OF EVERY 800 HOURS Checking Valve Clearance 1. Refer to “1. ENGINE” servicing section. W1036805 [9] CHECK POINT OF EVERY 1500 HOURS Checking Fuel Injection Nozzle Injection Pressure 1. Refer to “1. ENGINE” servicing section.
Page 63: Check Points Of Every 2 Years
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM [12] CHECK POINTS OF EVERY 2 YEARS Replacing Fuel Hose 1. Replace the fuel hoses and clamps, if necessary. Refer to “Checking Fuel Line”. (See page G-29.) W1037148 Replacing Parking Brake Cable 1.
Page 64 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Flushing Cooling System and Changing Coolant CAUTION • Do not remove the radiator cap when the engine is hot. Then loosen cap slightly to the stop to relieve any excess pressure before removing cap completely.
Page 65 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Flushing Cooling System and Changing Coolant (Continued) Anti-Freeze If coolant freezes, it can damage the cylinders and radiator. It is necessary, if the ambient temperature falls below 0 °C (32 °F), to remove coolant after operating or to add anti-freeze to it.
Page 66: Others
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM [13] OTHERS Bleeding Fuel System Air must removed : 1. When the fuel filter or lines are removed. 2. When tank is completely empty. 3. After the tractor has not been used for a long period of time.
Page 67 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Replacing Fuse 1. The tractor electrical system is protected from potential damage by fuses. A blown fuse indicates that there is an overload or short somewhere in the electrical system. 2. If any of the fuses should blow, replace with a new one of the same capacity.
Page 68 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Replacing Light Bulb 1. Head lights and rear combination lights : Take the bulb out of the light body and replace with a new one. 2. Other lights : Detach the lens and replace the bulb.
Page 69 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Checking Refrigerant (Gas) (CABIN Model) CAUTION • Liquid contact with eyes or skin may cause frostbite. • In the event of a leakage, wear safety goggles. Escaping refrigerant can cause severe injuries to eyes.
Page 70: Special Tools
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM 8. SPECIAL TOOLS [1] SPECIAL TOOLS FOR ENGINE Special Use Puller Set Code No.: 07916-09032 Application: Use exclusively for pulling out bearing, gears and other parts with ease. W10240500 Piston Ring Compressor Code No.:...
Page 71 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Oil Pressure Tester Code No.: 07916-32032 Application: Use to measure lubricating oil pressure. (1) Gauge (5) Adaptor 2 (2) Cable (6) Adaptor 3 (3) Threaded Joint (7) Adaptor 4 (4) Adaptor 1...
Page 72 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Engine Hook 1 Application: Use to fix the engine when hooking, instead of the original hook with hook 2 as a set. 17 mm (0.67 in.) 9 mm (0.35 in.) 129 mm (5.08 in.) 10.8 to 11.2 mm (0.426 to 0.440 in.)
Page 73 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Engine Hook 2 Application: Use to fix the engine when hooking, instead of the original hook with hook 1 as a set. 217 mm (8.54 in.) 140 mm (5.51 in.) 49 mm (1.9 in.) 44 mm (1.7 in.)
Page 74 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM NOTE • The following special tools are not provided, so make them referring to the figure. Socket Wrench for Crank Pulley Nut (46 mm Deep Socket Wrench) Application: Use to loosen and tighten the fan drive pulley mounting nut.
Page 75 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Auxiliary Socket for Fixing Crankshaft Sleeve (Continued) Application: Use to fix the crankshaft sleeve of the diesel engine. 42.0 mm (1.6535 in.) 30.5 to 30.6 mm (1.2008 to 1.2047 in.) 23.0 mm (0.9055 in.) 20.0 mm (0.7874 in.)
Page 76 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM NOTE • The following special tools are not provided, so make them referring to the figure. Valve Guide Replacing Tool Application: Use to press out and press fit the valve guide. 20 mm dia. (0.79 in. dia.) 11.7 to 11.9 mm dia.
Page 77 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Bushing Replacing Tools Application: Use to press out and to press fit the bushing. (1) For small end bushing 162 mm (6.38 in.) 35 mm (1.38 in.) 27 mm (1.06 in.) 35 mm dia. (1.38 in. dia.) 27.90 to 27.95 mm dia.
Page 78 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Balancer Metal Replacing Tool (for Removing) Application: Use to remove the metal bearing. 25 mm dia. (0.98 in. dia.) 41.934 to 41.950 mm dia. (1.6509 to 1.6516 in. dia.) 10 mm (0.39 in.) 24.959 to 24.980 mm dia.
Page 79 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Balancer Metal Replacing Tool (for Fitting) Application: Use to press fit the metal bearing. 0.52 rad (30 °) 5 mm (0.20 in.) 10 mm (0.39 in.) 3.3 to 3.7 mm (0.130 to 0.146 in.) Chamfer 0.3 mm (0.01 in.)
Page 80: Special Tools For Tractor
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM [2] SPECIAL TOOLS FOR TRACTOR Tie-rod End Lifter Code No.: 07909-39051 Application: Use for removing the tie-rod end with ease. W10264720 Steering Wheel Puller Code No.: 07916-51090 Application: Use for removing the steering wheel without damaging the steering shaft.
Page 81 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Rear Axle Cover Puller Code No.: 07916-51041 Application: Use for removing a rear axle cover from rear axle. (L5040, L5240 and L5740) W10732590 Relief Valve Pressure Tester Code No.: 07916-50045 Application: This allows easy measurement of relief set pressure.
Page 82 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Pinion Locking Tool Code No.: 07916-52311 Application: Use for preventing the shaft from turning when removing or tighten a bevel pinion shaft staking nut. W10445520 Rear Axle Nut Wrench 71 Code No.: 07916-52531 Application: Use for removing and installing a rear axle nut.
Page 83 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Front Axle Rocking Restrictor Application: Use for lock the rolling of the front axle. 70 mm (2.8 in.) 11 mm (0.43 in) M8 x P1.25 18 mm (0.71 in.) M14 x P1.5 R5 mm (R0.2 in.)
Page 84 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Draft Control Test Bar Application: Use for checking the lift range and floating range of hydraulic draft control. 1045 mm (41.14 in.) 1000 mm (29.37 in.) 20 mm dia. (0.79 in. dia.) 30 mm dia.
Page 85 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM NOTE • Special tools for R134a refrigerant air conditioning system introduced below are available from DENSO CO. LTD. Air Conditioner Service Tool Code No.: DENSO 95048-00061 Application: Use for charging, testing or discharging the air conditioning system.
Page 86 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Adaptor (For R134a) Code No.: DENSO 95048-10190 (AC220V) 95048-10200 (AC240V) Application: Use for evacuating the air conditioning system. W1013888 Stopper Magnet Clutch (For A/C Compressor) Application: Use for loosen and tighten the magnet clutch mounting nut. (Use radius C) NOTE •...
Page 87 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Stopper Bolt (for A/C Compressor) Application: Use with the stopper magnet clutch. NOTE • This special tool is not provided, so make it referring to the figure. 12 mm (0.47 in.) 5.5 mm dia. (0.22 in. dia.) 35 mm (1.38 in.)
Page 88 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Pump Adaptor Application: Use for checking the main hydraulic pump. NOTE • When using, attach with following parts. O-ring : 04811-00180 • This adaptor is modified from Adaptor 61 of flowmeter adaptor set (see page G-54).
Page 89: Tires
IMPORTANT • Do not use tires other than those approved by KUBOTA. Inflation Pressure Though the tire pressure is factory-set to the prescribed level, it naturally drops slowly in the course of time. Thus, check it everyday and inflate as necessary.
Page 90: Treads Adjustment
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM [2] TREADS ADJUSTMENT CAUTION • When working on slopes or working with trailer, set the wheel tread as wide as practice for the job for maximum stability. • Support tractor securely on stands before removing a wheel.
Page 91 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Models 11.2-24 1110 mm 1205 mm 1300 mm 1385 mm – Farm (43.70 in.) (47.44 in.) (51.18 in.) (54.53 in.) 12.4-24 1110 mm 1205 mm 1300 mm 1385 mm L3540 – Farm (43.70 in.)
Page 92: Tire Liquid Injection
G GENERAL L3540, L4240, L5040, L5240, L5740, WSM [3] TIRE LIQUID INJECTION Auxiliary weights can be used to increase traction force for plowing in fields or clayey ground. Another way is to inject water or another liquid, such as a calcium chloride solution in the tires. Water must not be used in winter since it freezes at 0 °C (32 °F).
Page 93 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Injection CAUTION • When a calcium chloride solution is used, cool it before pouring it into the tire. • Do not fill tires with water or solution more than 75 % of full capacity (to the valve stem level).
Page 94 G GENERAL L3540, L4240, L5040, L5240, L5740, WSM Draining Water or Solution 1. Lift the rear tires off the ground. 2. Turn the tire so that the air valve is at the bottom. 3. Remove the air valve, and drain liquid (liquid can only be drained to the level of the valve and liquid under that level remains inside).
Page 95 ENGINE KiSC issued 04, 2010 A...
Page 96 MECHANISM CONTENTS 1. FEATURES ....................1-M1 2. EGR (EXHAUST GAS RECIRCULATION) SYSTEM (IF EQUIPPED) ..1-M2 [1] EGR VALVE.................... 1-M3 [2] EGR COOLER ..................1-M3 KiSC issued 04, 2010 A...
Page 97: Features
ENGINE L3540, L4240, L5040, L5240, L5740, WSM 1. FEATURES The engine model shown in the table below is adopted in the L40 series tractor. These are 03-M series engine. In order to meet with the strict emission regulations. Kubota has adapted the Exhaust Gas Recirculation (EGR) system on the V2403-M-TE3 for L5240 and L5740.
Page 98: Egr (Exhaust Gas Recirculation) System (If Equipped)
ENGINE L3540, L4240, L5040, L5240, L5740, WSM 2. EGR (EXHAUST GAS RECIRCULATION) SYSTEM (IF EQUIPPED) (1) Boost Compensator (2) Thermo Valve (3) Exhaust Manifold (4) Crankcase (5) EGR Cooler (6) EGR Valve (7) Water Flange (8) Inlet Manifold (A) Boost Pressure...
Page 99: Egr Valve
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [1] EGR VALVE When the temperature of coolant rises above 65 °C (149 °F), the thermo valve (1) opens and boost pressure (B) flows to EGR valve. This boost pressure (B) pushes down EGR valve’s diaphragm (5), and opens valve (16).
Page 100 SERVICING CONTENTS 1. TROUBLESHOOTING ..................1-S1 2. SERVICING SPECIFICATIONS ..............1-S4 3. TIGHTENING TORQUES ................1-S11 4. CHECKING AND ADJUSTING ..............1-S12 [1] ENGINE BODY ..................1-S12 [2] LUBRICATING SYSTEM ...............1-S14 [3] COOLING SYSTEM................1-S15 [4] FUEL SYSTEM ..................1-S17 [5] TURBOCHARGER (V2403-M-T) ............1-S21 5. PREPARATION ....................1-S22 [1] COOLANT AND LUBRICANTS (ROPS AND CABIN MODEL) ..1-S22 [2] SEPARATING ENGINE AND CLUTCH HOUSING ......1-S25 (1) Engine Separating (ROPS Model) ............1-S25...
Page 101: Troubleshooting
ENGINE L3540, L4240, L5040, L5240, L5740, WSM 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Engine Does Not No fuel Replenish fuel Start Air in the fuel system Bleed G-44 Water in the fuel system Change fuel and – repair or replace fuel...
Page 102 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Reference Symptom Probable Cause Solution Page Either White or Blue Excessive engine oil Reduce to the Exhaust Gas Is specified level Observe Piston ring and cylinder worn or stuck Repair or replace 1-S52...
Page 103 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Reference Symptom Probable Cause Solution Page Low Oil Pressure Engine oil insufficient Replenish Oil strainer clogged Clean 1-S50 Relief valve stuck with dirt Clean – Relief valve spring weaken or broken Replace –...
Page 104: Servicing Specifications
ENGINE L3540, L4240, L5040, L5240, L5740, WSM 2. SERVICING SPECIFICATIONS ENGINE BODY Item Factory Specification Allowable Limit Compression Pressure 3.6 to 4.0 MPa 2.5 MPa (When Cranking with Starting Motor) 36 to 41 kgf/cm 26 kgf/cm 520 to 580 psi...
Page 105 ENGINE L3540, L4240, L5040, L5240, L5740, WSM ENGINE BODY (Continued) Item Factory Specification Allowable Limit Rocker Arm Shaft to Rocker Arm Clearance 0.016 to 0.045 mm 0.1 mm 0.00063 to 0.0017 in. 0.0039 in. Rocker Arm Shaft O.D. 13.973 to 13.984 mm –...
Page 106 ENGINE L3540, L4240, L5040, L5240, L5740, WSM ENGINE BODY (Continued) Item Factory Specification Allowable Limit Balancer Shaft Journal 1 to Balancer Shaft Clearance 0.030 to 0.111 mm 0.20 mm Bearing 1 (Balancer Model Only) 0.00119 to 0.00437 in. 0.0079 in.
Page 107 ENGINE L3540, L4240, L5040, L5240, L5740, WSM ENGINE BODY (Continued) Item Factory Specification Allowable Limit Piston Pin Bore I.D. 25.000 to 25.013 mm 25.050 mm 0.98426 to 0.98476 in. 0.98622 in. Piston Pin to Small End Bushing Clearance 0.014 to 0.038 mm 0.15 mm...
Page 108 ENGINE L3540, L4240, L5040, L5240, L5740, WSM ENGINE BODY (Continued) Item Factory Specification Allowable Limit Crankpin to Crankpin Bearing Oil Clearance 0.025 to 0.087 mm 0.20 mm 0.00099 to 0.0034 in. 0.0079 in. Crankpin O.D. 46.959 to 46.975 mm –...
Page 109 ENGINE L3540, L4240, L5040, L5240, L5740, WSM COOLING SYSTEM Item Factory Specification Allowable Limit Fan Belt Tension 7.0 to 9.0 mm (0.28 to – 0.35 in.) deflection at 98 N (10 kgf, 22 lbf) of force Radiator Cap Pressure Falling 10 seconds or more for –...
Page 110 ENGINE L3540, L4240, L5040, L5240, L5740, WSM FUEL SYSTEM Item Factory Specification Allowable Limit Injection Pump Injection Timing 0.30 to 0.33 rad – (D1803-M-E2, (17 to 19 °) before V2203-M-E2) T.D.C. Injection Pump Injection Timing 0.13 to 0.15 rad –...
Page 111: Tightening Torques
ENGINE L3540, L4240, L5040, L5240, L5740, WSM 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : Refer to “5. TIGHTENING TORQUES” at “G. GENERAL” section.) Item N·m...
Page 112: Checking And Adjusting
ENGINE L3540, L4240, L5040, L5240, L5740, WSM 4. CHECKING AND ADJUSTING [1] ENGINE BODY Compression Pressure 1. Run the engine until it is warmed up. 2. Stop the engine and disconnect the 2P connector from the stop solenoid in order not to inject fuel.
Page 113 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Valve Clearance IMPORTANT • Valve clearance must be checked and adjusted when engine is cold. 1. Remove the head cover, the glow plugs and the timing window cover on the clutch housing. 2. Align the “1TC” mark line (1) on the flywheel and center of timing window (2) so that the No.
Page 114: Lubricating System
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [2] LUBRICATING SYSTEM Engine Oil Pressure 1. Remove the engine oil pressure switch, and set an oil pressure tester (Code No.: 07916-32032). (Adaptor screw size : PT 1/8) 2. Start the engine. After warming up, measure the oil pressure of both idling and rated speeds.
Page 115: Cooling System
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [3] COOLING SYSTEM Fan Belt Tension 1. Measure the deflection (A), depressing the belt halfway between the fan drive pulley and alternator pulley at specified force 98 N (10 kgf, 22 lbf). 2. If the measurement is not within the factory specifications, loosen the alternator mounting screws and relocate the alternator to adjust.
Page 116 ENGINE L3540, L4240, L5040, L5240, L5740, WSM CAUTION • When removing the radiator cap, wait at least ten minutes after the engine has stopped and cooled down. Otherwise, hot water may gush out, scalding nearby people. Radiator Cap Air Leakage 1.
Page 117: Fuel System
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [4] FUEL SYSTEM Injection Timing 1. Remove the stop solenoid. 2. Remove the injection pipes and nozzle. 3. Set the speed control lever to maximum fuel discharge position. (Reference) • Turn the flywheel with screwdriver.
Page 118 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Injection Timing (Continued) NOTE • The sealant is applied to both sides of the soft metal gasket shim. The liquid gasket is not required for assembling. • Shims are available in thickness of 0.175 mm (1), 0.20 mm (2), 0.25 mm (3) and 0.30 mm (4).
Page 119 5. Set the speed control lever to the maximum speed position. 6. Run the starter to increase the pressure. 7. If the pressure can not reach the allowable limit, replace the pump with new one or repair with a Kubota-authorized pump service shop. 13.7 MPa...
Page 120 ENGINE L3540, L4240, L5040, L5240, L5740, WSM CAUTION • Check the injection pressure and condition after confirming that there is nobody standing in the direction the fume goes. • If the fume from the nozzle directly contacts the human body, cells may be destroyed and blood poisoning may be caused.
Page 121: Turbocharger (V2403-M-T)
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [5] TURBOCHARGER (V2403-M-T) Turbine Side 1. Check the exhaust port (1) and inlet port (4) side of the turbine housing (3) to see if there is no exhaust gas leak. 2. If any gas leak is found, retighten the bolts and nuts or replace the gasket (2) / (5) with new one.
Page 122: Preparation
ENGINE L3540, L4240, L5040, L5240, L5740, WSM 5. PREPARATION [1] COOLANT AND LUBRICANTS (ROPS AND CABIN MODEL) Draining Engine Oil CAUTION • Be sure to stop the engine before changing the oil. • Allow engine to cool down sufficiently, oil can be hot and can burn.
Page 123 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Draining Coolant CAUTION • Do not remove the radiator cap when the engine is hot. Then loosen cap slightly to the stop to relieve any excess pressure before removing cap completely. 1. Stop the engine and let cool down.
Page 124 L5040, L5240, L5740 11.9 U.S.gals 9.9 Imp.gals IMPORTANT • Use only KUBOTA SUPER UDT fluid. Use of other oils may damage the transmission or hydraulic system. (Refer to “4. LUBRICANTS, FUEL AND COOLANT” at “G. GENERAL” section.) • Do not mix different brands of fluid together.
Page 125: Separating Engine And Clutch Housing
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [2] SEPARATING ENGINE AND CLUTCH HOUSING (1) Engine Separating (ROPS Model) ROPS (Center ROPS Type) 1. Remove the upper frame (1) from ROPS lower frame (2). 2. Disconnect the light connectors. 3. Remove the shields (3).
Page 126 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Steering Joint and Electrical Wiring 1. Remove the shield RH (1). 2. Remove the fuel tank frame support (2). 3. Remove the universal joint bolt (5) and steering joint shaft support (4), and then remove the steering joint shaft 2 (3).
Page 127 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Electrical Wiring 1. Remove the shield LH (3). 2. Disconnect the wiring connectors for a alternator (1), coolant temperature sensor (7), oil pressure switch (4), fuel sensor (2), starter motor (5), horn and battery (6).
Page 128 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Clutch Rod, Brake Rod and Electrical Wiring 1. Remove the clutch rod (1) and brake rod LH (2). 2. Remove the harness cover (4). 3. Remove the fuse box (3). 4. Remove the brake rod RH (11).
Page 129 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Panel Frame 1. Remove the universal joint bolt (1), and disconnect the steering joint shaft 1 (2). 2. Remove the panel frame (3). (1) Universal Joint Bolt (3) Panel Frame (2) Steering Joint Shaft 1...
Page 130 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Hydraulic Pipes 1. Disconnect the delivery pipe 1 (4) from hydraulic pump (2). 2. Disconnect the PTO delivery pipe (3) from hydraulic pump (2). [Manual Transmission and GST model] Remove the power steering delivery pipe (5). [HST model] 3.
Page 131 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Propeller Shaft 1. Slide the propeller shaft cover (4) and (8) after removing the screws (7). 2. Tap out the spring pins (2), (6) and slide the couplings (1), (5) and then remove the propeller shaft with covers (4), (8).
Page 132: Dismounting Cabin From Tractor (Cabin Model)
ENGINE L3540, L4240, L5040, L5240, L5740, WSM (2) Dismounting Cabin from Tractor (Cabin Model) Separating Cabin 1. Refer to “6. [2]-(1) Separating Cabin from Tractor” at “10. CABIN” section. W1072678 (3) Engine Separating (Cabin Model) Hydraulic Pipes and Radiator Hose 1.
Page 133 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Propeller Shaft 1. Slide the propeller shaft cover (4) and (8) after removing the screws (7). 2. Tap out the spring pins (2), (6) and slide the couplings (1), (5) and then remove the propeller shaft with covers (4), (8).
Page 134: Separating Engine From Tractor (Rops And Cabin Model)
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [3] SEPARATING ENGINE FROM TRACTOR (ROPS AND CABIN MODEL) Radiator Assembly 1. Remove the muffler (3). 2. Disconnect the air cleaner hose (2). 3. Remove the battery stay (6). 4. Disconnect the radiator hose (1) (4).
Page 135 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Front Axle Frame 1. Remove the alternator. 2. Remove the oil cooler return pipe. 3. Remove the original engine hooks. 4. Install the engine hooks (1), (2). (Refer to “8. SPECIAL TOOLS” at “G. GENERAL” section.) 5.
Page 136: Disassembling And Assembling
ENGINE L3540, L4240, L5040, L5240, L5740, WSM 6. DISASSEMBLING AND ASSEMBLING [1] OUTER PARTS Outer Parts of Engine 1. Remove the cooling fan (1) and fan pulley (2). 2. Remove the turbo charger (3). 3. Remove the starter motor (4).
Page 137: Egr Valve And Egr Cooler (If Equipped)
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [2] EGR VALVE AND EGR COOLER (IF EQUIPPED) EGR Valve 1. Remove the air tube 1 (3) from the thermo valve (4) and EGR valve (1). 2. Remove the air tube 2 (5) from the thermo valve (4), inlet manifold (2) and boost compensator (6).
Page 138: Cylinder Head And Valves
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [3] CYLINDER HEAD AND VALVES Cylinder Head Cover 1. Remove the lead (1). 2. Remove the breather hose (2). 3. Remove the head cover screws (3). 4. Remove the cylinder head cover (4).
Page 139 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Nozzle Holder Assembly and Glow Plug 1. Remove the overflow pipe assembly (6). 2. Remove the nozzle holder assemblies (2) using a 21 mm deep socket wrench. 3. Remove the copper gasket (3) and heat seal (4).
Page 140 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Cylinder Head 1. Loosen the pipe clamp (2), and remove the water return pipe (1). 2. Remove the cylinder head screw in the order of (n or r) to (a). 3. Lift up the cylinder head (3) to detach.
Page 141 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Valves 1. Remove the valve caps (2). 2. Remove the valve spring collet (3), pushing the valve spring retainer (4) by valve spring replacer (1). 3. Remove the valve spring retainer (4), valve spring (5) and valve stem seal (6).
Page 142: Timing Gears, Camshaft And Fuel Camshaft
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [4] TIMING GEARS, CAMSHAFT AND FUEL CAMSHAFT Injection Pump (D1803-M, V2203-M without Boost Compensator Model) 1. Remove the stop solenoid (4) and the hi-idling body (1). 2. Remove the engine stop lever (3) and the stop solenoid guide (6).
Page 143 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Injection Pump (V2403-M with Boost Compensator Model) (If equipped) 1. Remove the boost compensator assembly (2). 2. Remove the hi-idling body (4). 3. Remove the stop solenoid (3). 4. Remove the stop solenoid guide (5).
Page 144 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Governor Springs and Speed Control Plate NOTE • Governor spring hooking special tool (1) : 1.2 mm diameter hard wire with its end hooked, overall length 200 mm (7.87 in.). The tip of wire is bent to hang governor springs.
Page 145 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Governor Springs and Speed Control Plate (Continued) (When reassembling) • Using the governor spring hooking special tool (1), Hook the small spring (4) first and then the large governor spring (2) on the speed control plate (6).
Page 146 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Fan Drive Pulley 1. Lock the flywheel not to turn using the flywheel stopper. 2. Remove the fan drive pulley mounting nut (1) using 46 mm deep socket wrench (3). 3. Remove the fan drive pulley (2) with gear puller (4).
Page 147 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Idle Gear (for D1803-M) 1. Remove the external snap ring. 2. Detach the idle gear collar. 3. Detach the idle gear (2). (When reassembling) • Check to see each gear is aligned with its aligning mark...
Page 148 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Camshaft and Balancer Shaft (for V2203-M and V2403-M) 1. Remove the camshaft set bolts and draw out the camshaft (1). 2. Remove the balancer shaft 1 (2) set bolts and draw out the balancer shaft 1 (2).
Page 149 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Crank Gear 1. Draw out the crank gear (2) with a puller (1). 2. Remove the feather key. (1) Crank Puller (2) Crank Gear W1025476 1-S49 KiSC issued 04, 2010 A...
Page 150: Piston And Connecting Rod
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [5] PISTON AND CONNECTING ROD Oil Pan and Oil Strainer 1. Remove the oil pan mounting screws. 2. Remove the oil pan (3) by lightly tapping the rim of the pan with a wooden hammer.
Page 151 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Pistons 1. Completely clean carbon (1) in the cylinders. 2. Remove the connecting rad cap (3). 3. Turn the flywheel and bring the piston to top dead center. 4. Draw out the piston upward by lightly tapping it from the bottom of the crankcase with the grip of a hammer.
Page 152 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Piston Ring and Connecting Rod 1. Remove the piston rings (1), (2), (3) using a piston ring tool. 2. Remove the piston pin (9), and separate the connecting rod (7) from the piston (6).
Page 153: Crankshaft
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [6] CRANKSHAFT Flywheel 1. Fit the stopper to the flywheel (1). 2. At first, remove two pieces of the flywheel screws (2). 3. Insert two pieces of the flywheel guide screws (3) in the holes.
Page 154 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Crankshaft NOTE • Before disassembling, check the side clearance of crankshaft. Also check it during reassembling. For V2203-M 1. Remove the main bearing case screw 2 (1). 2. Pull out the crankshaft assembly, taking care not to damage the crankshaft bearing 1 (3).
Page 155 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Main Bearing Case Assembly 1. Remove the two main bearing case screws 1, and remove the main bearing case assembly being careful with thrust bearing and crankshaft bearing. 2. Remove the main bearing case 1, 2 as above.
Page 156: Servicing
ENGINE L3540, L4240, L5040, L5240, L5740, WSM 7. SERVICING [1] CYLINDER HEAD AND VALVES Cylinder Head Surface Flatness 1. Clean the cylinder head surface. 2. Place a straightedge on the cylinder head’s four sides (A), (B), (C) and (D) and two diagonal (E) and (F) as shown in the figure.
Page 157 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Valve Recessing 1. Clean the cylinder head surface, valve face and valve seat. 2. Insert the valve into the valve guide. 3. Measure the valve recessing with a depth gauge. 4. If the measurement exceeds the allowable limit, replace the valve.
Page 158 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Replacing Valve Guide (When removing) 1. Press out the used valve guide using a valve guide replacing tool. (When installing) 1. Clean a new valve guide and valve guide bore, and apply engine oil to them.
Page 159 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Correcting Valve and Valve Seat NOTE • Before correcting the valve and seat, check the valve stem and the I.D. of valve guide section, and repair them if necessary. • After correcting the valve seat, be sure to check the valve recessing.
Page 160 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Free Length and Tilt of Valve Spring 1. Measure the free length (B) of valve spring with vernier calipers. If the measurement is less than the allowable limit, replace it. 2. Put the valve spring on a surface plate, place a square on the side of the valve spring.
Page 161 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Push Rod Alignment 1. Place the push rod on V blocks. 2. Measure the push rod alignment. 3. If the measurement exceeds the allowable limit, replace the push rod. 0.25 mm Push rod alignment Allowable limit 0.0098 in.
Page 162: Timing Gears, Camshaft And Fuel Camshaft
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [2] TIMING GEARS, CAMSHAFT AND FUEL CAMSHAFT Timing Gear Backlash 1. Set a dial indicator (lever type) with its tip on the gear tooth. 2. Move the gear to measure the backlash, holding its mating gear.
Page 163 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Camshaft Side Clearance 1. Set a dial indicator with its tip on the camshaft. 2. Measure the side clearance by moving the cam gear to the front and rear. 3. If the measurement exceeds the allowable limit, replace the camshaft stopper.
Page 164 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Oil Clearance of Balancer Shaft Journal (for V2203-M and V2403-M) 1. Measure the balancer shaft journal O.D. with an outside micrometer. 2. Measure the cylinder block bore I.D. for balancer shaft with an inside micrometer or cylinder gauge.
Page 165 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Replacing Idle Gear Bushing (A) (When removing) 1. Using an idle gear bushing replacing tool, press out the used bushing. (B) (When installing) 1. Clean a new idle gear bushing and idle gear bore, and apply engine oil to them.
Page 166 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Oil Clearance of Camshaft Journal 1. Measure the camshaft journal O.D. with an outside micrometer. 2. Measure the cylinder block bore I.D. for camshaft with a cylinder gauge, and calculate the oil clearance.
Page 167: Piston And Connecting Rod
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [3] PISTON AND CONNECTING ROD Piston Pin Bore I.D. 1. Measure the piston pin bore I.D. in both the horizontal and vertical directions with a cylinder gauge. 2. If the measurement exceeds the allowable limit, replace the piston.
Page 168 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Piston Ring Gap 1. Insert the piston ring into the lower part of the liner (the least worn out part) with the piston. 2. Measure the ring gap with a feeler gauge. 3. If the gap exceeds the allowable limit, replace the ring.
Page 169: Crankshaft
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [4] CRANKSHAFT Side Clearance of Crankshaft 1. Set a dial indicator with its tip on the end of the crankshaft. 2. Measure the side clearance by moving the crankshaft to the front and rear.
Page 170 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Oil Clearance between Crankpin and Crankpin Bearing 1. Clean the crankpin and crankpin bearing. 2. Put a strip of plastigage on the center of the crankpin. 3. Install the connecting rod cap and tighten the connecting rod screws to the specified torque, and remove the cap again.
Page 171 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Oil Clearance between Crankshaft Journal and Crankshaft Bearing 1 1. Measure the O.D. of the crankshaft journal with an outside micrometer. 2. Measure the I.D. of the crankshaft bearing 1 with an inside micrometer, and calculate oil clearance.
Page 172 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Oil Clearance between Crankshaft Journal and Crankshaft Bearing 2 1. Put a strip of plastigage on the center of the journal. 2. Install the bearing case and tighten the bearing case screws 1 to the specified torque, and remove the bearing case again.
Page 173 ENGINE L3540, L4240, L5040, L5240, L5740, WSM Replacing Crankshaft Sleeve 1. Remove the used crankshaft sleeve using a special-use puller set (Code No.: 07916-32091). 2. Set the sleeve guide (2) to the crankshaft. 3. Set the stopper (1) to the crankshaft as shown in figure.
Page 174: Cylinder
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [5] CYLINDER Cylinder Wear 1. Measure the I.D. of the cylinder at the six positions (see figure) with a cylinder gauge to find the maximum and minimum I.D.’s. 2. Get the difference (Maximum wear) between the maximum and the minimum I.D.’s.
Page 175: Oil Pump
ENGINE L3540, L4240, L5040, L5240, L5740, WSM [6] OIL PUMP Rotor Lobe Clearance 1. Measure the clearance between lobes of the inner rotor and the outer rotor with a feeler gauge. 2. Measure the clearance between the outer rotor and the pump body with a feeler gauge.
Page 176 CLUTCH KiSC issued 04, 2010 A...
Page 177 MECHANISM CONTENTS 1. FEATURE ...................... 2-M1 KiSC issued 04, 2010 A...
Page 178 CLUTCH L3540, L4240, L5040, L5240, L5740, WSM 1. FEATURE The dry single plate with diaphragm spring type clutch is adapted for all models. This clutch is operated with the hanging type pedal, and the pedal (5) and release fork (3) have been linked as shown in figure.
Page 179 SERVICING CONTENTS 1. TROUBLESHOOTING ..................2-S1 2. SERVICING SPECIFICATIONS ..............2-S2 3. TIGHTENING TORQUES ................2-S3 4. CHECKING AND ADJUSTING ..............2-S4 5. PREPARATION ....................2-S5 [1] COOLANT AND LUBRICANTS ..............2-S5 [2] SEPARATING ENGINE AND CLUTCH HOUSING .......2-S5 (1) Engine Separating (ROPS Model) ............2-S5 (2) Dismounting Cabin from Tractor (Cabin Model) .........2-S5 (3) Engine Separating (Cabin Model)............2-S6 6.
Page 180: Troubleshooting
CLUTCH L3540, L4240, L5040, L5240, L5740, WSM 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Clutch Drags Clutch pedal free play excessive Adjust 2-S4 Dust on clutch disc generated from clutch disc Remove rust – facing Release fork broken Replace...
Page 181: Servicing Specifications
CLUTCH L3540, L4240, L5040, L5240, L5740, WSM 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Clutch Pedal Free play 20 to 30 mm –- 0.78 to 1.18 in. Clutch Disc Boss to Gear Shaft Backlash – 2.0 mm (Displacement 0.079 in.
Page 182: Tightening Torques
CLUTCH L3540, L4240, L5040, L5240, L5740, WSM 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : Refer to “5. TIGHTENING TORQUES” at “G. GENERAL” section.) Item N·m...
Page 183: Checking And Adjusting
CLUTCH L3540, L4240, L5040, L5240, L5740, WSM 4. CHECKING AND ADJUSTING Clutch Pedal Free Travel CAUTION • When checking, park the tractor on flat ground, apply the parking brake, stop the engine and remove the key. 1. Slightly depress the clutch pedal and measure free travel “L” at top of clutch pedal.
Page 184: Preparation
CLUTCH L3540, L4240, L5040, L5240, L5740, WSM 5. PREPARATION [1] COOLANT AND LUBRICANTS • Draining coolant (Cabin Model only) and transmission fluid are refer to the “5. PREPARATION” at “1. ENGINE” section. [2] SEPARATING ENGINE AND CLUTCH HOUSING (1) Engine Separating (ROPS Model) Separating Engine and Clutch Housing 1.
Page 185: Engine Separating (Cabin Model)
CLUTCH L3540, L4240, L5040, L5240, L5740, WSM (3) Engine Separating (Cabin Model) Separating Engine and Clutch Housing 1. Refer to “5-[2] SEPARATING ENGINE CLUTCH HOUSING” at “1. ENGINE” section. W1020571 2-S6 KiSC issued 04, 2010 A...
Page 186: Disassembling And Assembling
CLUTCH L3540, L4240, L5040, L5240, L5740, WSM 6. DISASSEMBLING AND ASSEMBLING Clutch Assembly 1. Remove the clutch from the flywheel. (When reassembling) • Direct the shorter end of the clutch disc boss toward the flywheel. • Apply molybdenum disulphide (Three Bond 1901 or equivalent) to the splines of clutch disc boss.
Page 187: Servicing
CLUTCH L3540, L4240, L5040, L5240, L5740, WSM 7. SERVICING Backlash between Clutch Disc Boss and Gear Shaft 1. Mount the clutch disc to the gear shaft. 2. Hold the gear shaft so that it may not turn. 3. Rotate disc lightly and measure the displacement around the disc edge.
Page 188 CLUTCH L3540, L4240, L5040, L5240, L5740, WSM Pressure Plate Flatness 1. Place a straight edge on the pressure plate and measure clearance with a feeler gauge at several points. 2. If the clearance exceeds the allowable limit, replace it. 3. When the pressure plate is worn around its outside and its inside surface only is in contact with the straight edge, replace even if the clearance is within the allowable limit.
Page 189 TRANSMISSION KiSC issued 04, 2010 A...
Page 190 MECHANISM CONTENTS 1. STRUCTURE ....................3-M1 [1] MANUAL TRANSMISSION MODEL ............3-M1 [2] GLIDE SHIFT TRANSMISSION (GST) MODEL ........3-M2 [3] HYDROSTATIC TRANSMISSION (HST) MODEL........ 3-M3 2. MANUAL TRANSMISSION MODEL ............3-M4 [1] POWER TRAIN FOR TRAVELING GEAR........... 3-M4 (1) Main Gear Shift Section ..............3-M4 (2) Shuttle Shift Section................
Page 191: Structure
L3540, L4240, L5040, L5240, L5740, WSM TRANSMISSION 1. STRUCTURE [1] MANUAL TRANSMISSION MODEL 3TLAAAK3P001A (1) Main Gear Shift Section (3) Shuttle Shift Section (5) Front Wheel Drive Shift Section (2) PTO Clutch Section (4) Range Gear / Creep Gear Shift...
Page 192: Glide Shift Transmission (Gst) Model
L3540, L4240, L5040, L5240, L5740, WSM TRANSMISSION [2] GLIDE SHIFT TRANSMISSION (GST) MODEL 3TLAAAK3P002A (1) Main Gear Shift Section (3) PTO Clutch Section (5) Range Gear Shift / Creep Gear (2) Clutch Pack for GST (4) Hi-Lo Shift / Shuttle Shift Section...
Page 193: Hydrostatic Transmission (Hst) Model
L3540, L4240, L5040, L5240, L5740, WSM TRANSMISSION [3] HYDROSTATIC TRANSMISSION (HST) MODEL 3TLAAAK3P003A (1) Hydrostatic Transmission Section (2) PTO Clutch Section (3) Range Gear Shift Section (4) Front Wheel Drive Shift Section 3-M3 KiSC issued 04, 2010 A...
Page 194: Manual Transmission Model
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 2. MANUAL TRANSMISSION MODEL [1] POWER TRAIN FOR TRAVELING GEAR The transmission consists of a series of gears and shafts as shown in previous page. The traveling system consists of main gear shift section, shuttle shift section, range gear shift section and front wheel drive section.
Page 195 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (3) Range Gear Shift Section The range gear shift section is located in the differential gear case, and it uses constant mesh. (1) Shuttle Gear Shaft L : Low Speed (2) Gear for Low...
Page 196 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (5) Front Wheel Drive Section Front wheel drive shift section is located in the differential gear case. Two wheel drive or four wheel drive is selected by operating the front wheel drive lever to shift the shifter gear (4).
Page 197: Shift Linkage Mechanism
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [2] SHIFT LINKAGE MECHANISM (1) Main Gear Shift Lever The links are connected from the shift lever (6) to the shift forks (1), (2) as shown in the figure. Each speed from the 1st to 4th can be changed by a single shift lever (6).
Page 198: Range Gear Shift Lever
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (3) Range Gear Shift Lever The links from the shift lever (1) to the shift fork (5) are connected as shown in the figure. When the shift lever (1) is moved to the A side, the...
Page 199: Glide Shift Transmission (Gst) Model
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 3. GLIDE SHIFT TRANSMISSION (GST) MODEL [1] CHARACTERISTIC AND SYSTEM OUTLINE In addition to the former GST system that controls the gear shifting and clutch operation hydraulically, the GST system of L40 series tractor has the function to control these operations electrically.
Page 200: Power Train
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [2] POWER TRAIN (1) Main Shift Section (3) Sub-range Shift Section (4) Shuttle Shift Section (5) Main Range Shift Section (2) GST Clutch Pack The transmission is composed of the fully synchronized gear shifting and the hydraulic clutch as shown above figure.
Page 201: Electrical Control System
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [3] ELECTRICAL CONTROL SYSTEM (1) Electrical Control An electrical control of GST system is as follows. 1. Shift the GST lever and shuttle lever to desired position. 2. The output voltage of selected gear shift position is output to microcomputer of the ECU by lever sensor.
Page 202: Hydraulic Control System
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [4] HYDRAULIC CONTROL SYSTEM (1) Hydraulic Circuit and System Outline (1) Regulating Valve Assembly (11) Solenoid Valve 5 (19) 3-4 Shift Check Valve a : To Steering Controller (2) Hydraulic Pump (Sub-range Shift)
Page 203 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 1. Oil is supplied from the power steering hydraulic pump (2) while running the engine. 2. The oil entering the regulating valve assembly (1) flows through the pressure reducing valve (5) to the GST circuit.
Page 204: Construction And Function Of Components
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (2) Construction and Function of Components (A) Regulating Valve The oil from the hydraulic pump for the power steering system flows to the GST circuit to set the pressure of the circuit. Other oil flows to the power steering circuit.
Page 205 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (B) GST Valve GST Valve Assembly The GST valve assembly is installed at the left side of the transmission mid case. In the GST valve assembly, many parts comprising the system are installed,...
Page 206 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Shift Piston The shift pistons (1), (2), (3), (4) are actuated by the oil distributed by the each solenoid valve. At the tip of these shift pistons (1), (2), (3) are installed the shifters (5), which are connected to each shift rod and shift the gear.
Page 207 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Shift Check Valve The shift check valves (2), (3), (4), (5), (6) are provided on each shift piston and the shuttle shift rod. From the start to the end of gear shifting, the shift...
Page 208 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Low-pass Valve After completion of the gear shifting, the low-pass valve (8) opens immediately to flow oil into the GST clutch (9), to promote the engagement of the clutch. When the gear shifting starts, the oil in the GST clutch (9) passes the clutch valve (7) to be drained into the tank.
Page 209 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Proportional Reducing Valve After the gear shifting is completed, this valve has function which gradually rises the pressure in the clutch (4) in order to make a clutch engaging for without shock and smoothly.
Page 210 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Clutch Valve The clutch valve (5) changes the flow of the oil flowing to the GST clutch to carry out “ENGAGE” / “DISENGAGED” of the clutch. Except for during gear shifting, the oil of the pilot circuit flows in from the A-port to push the spool to the right when the pilot circuit is pressurized.
Page 211: Front Wheel Drive Section
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (C) GST Clutch The GST clutch is hydraulic multiple plate type and is provided between the counter shaft (3) and the shuttle shaft (8), and it “Engages” and “Disengages” the power from the engine.
Page 212: Hydrostatic Transmission (Hst) Model
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 4. HYDROSTATIC TRANSMISSION (HST) MODEL [1] POWER TRAIN The transmission of this model consists of a series of gears and shafts as shown in previous page. The traveling system is chiefly composed of hydrostatic transmission section, range gear shift section and front wheel drive section.
Page 213 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (1) Input Shaft (9) Piston (Hi) (16) Piston (Lo) X : Sectional View X-X (2) Servo Piston (10) Output Shaft (Motor Shaft) (17) Variable Swashplate (Pump) Y : Sectional View Y-Y (3) Feedback Rod...
Page 214: Oil Flow
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (2) Oil Flow (1) HST Assembly (8) Motor Cylinder Block (15) Oil Cooler A : To PTO Clutch Valve (2) Case Relief Valve (9) Piston H (16) Hydraulic Pump B : To Steering Controller...
Page 215: Function Of Components
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (3) Function of Components Servomechanism (1) Servo Piston (5) Piston Adjusting Screw A : To Reverse Side P : Pump Port (2) Feedback Rod (Connected to (6) Spring B : To Forward Side...
Page 216: Operation
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (4) Operation When the HST pedal is in the neutral position [Tractor Condition] HST pedal : Neutral Position Hi-Lo select lever : Lo (1) Pump Swash Plate (12) Piston H (24) PTO Valve...
Page 217 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM When the pedal is pressed toward the forward side [Tractor Condition] HST pedal : Forward Position Hi-Lo select lever : Lo (1) Pump Swash Plate (12) Piston H (24) PTO Valve A : A Port...
Page 218 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM When the pedal is depressed toward the reverse side [Tractor Condition] HST pedal : Reverse Position Hi-Lo select lever : Lo (1) Pump Swash Plate (12) Piston H (24) PTO Valve A : A Port...
Page 219 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM When the pedal is located on the forward side and the Hi-Lo change lever is set to “Hi” (The lamp of the rabbit lights up and the turtle goes off) [Tractor Condition] HST pedal : Forward Position Hi-Lo select lever : Lo →...
Page 220 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Signals are sent from the Hi-Lo change lever switch to the ECU. Then the signals are sent from the ECU to the Hi-Lo change valve. Then the Hi-Lo solenoid valve is opened. As a result, the position of the two-speed change spool is changed with charge oil to the position shown in the drawing.
Page 221 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM When the pedal is located on the forward side and the Hi-Lo change lever is changed from “Hi” to “Lo” (The lamp of the turtle lights up and the rabbit goes off) [Tractor Condition] HST pedal : Forward Position Hi-Lo select lever : Hi →...
Page 222 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Signals are sent from the Hi-Lo change lever switch to the ECU. Then the signals are sent from the ECU to the Hi-Lo change valve. As a result, the Hi-Lo solenoid valve is closed and the two-speed change spool is changed by the force of the spring to the position shown in the drawing.
Page 223 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM When loads are applied with the pedal located on the forward side and the engine stall prevention function is activated (Stall Guard lamp lights up on the panel) [Tractor Condition] HST pedal : Forward Position...
Page 224 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Since loads are applied on the motor shaft, the pressure between A and C is increased. With the pressure between A and C increased, the pump receives more resistance, thereby decreasing the engine speed. The engine stall prevention function is controlled by the engine speed sensor and accelerator opening sensor.
Page 225 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM When loads are applied and the engine stall prevention function is activated with the HST pedal located on the forward side, the Hi-Lo lever sets at “Hi” position, and the automatic gear shifting sets at “ON” (Stall...
Page 226 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM With loads applied on the motor shaft, the pressure between A and C is increased. With the pressure between A and C increased, the pump receives more resistance, thereby decreasing the engine speed. Since the engine stall...
Page 227 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM When loads are applied and the engine stall prevention function is activated with the HST pedal located on the forward side, the Hi-Lo lever sets at “Hi”, and the automatic gear shifting sets at “ON” (Stall Guard lamp...
Page 228 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 1. The swash plate on the motor side is changed to the Lo side (The lamp of the turtle lights up and the rabbit lamp goes off). 2. At the same time, the swash plate on the pump side is inclined toward the speed increasing side (To achieve smooth shift transmission).
Page 229: Range Gear Shift Section
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (5) Range Gear Shift Section The range gar shift section is located in the differential gear case. It changes the speed to five positions (L, N, M, N and H) by shifting of shifter gear (3) in the straight line on bevel pinion shaft (7).
Page 230: Shift Linkage Mechanism
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [2] SHIFT LINKAGE MECHANISM Refer to the “2. MANUAL TRANSMISSION MODEL” in this section for the “Front Wheel Drive Lever” mechanism. (1) Range Gear Shift Lever The links are connected from the shift lever (3) to the shift fork (1) as shown in figure.
Page 231: Pto System
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 5. PTO SYSTEM [1] STRUCTURE (1) PTO Gear Shaft 1 (4) PTO Counter Shaft (7) Output Shaft (Motor Shaft) [A] Manual Transmission Model (2) PTO Gear Shaft 2 (5) PTO Drive Shaft (8) PTO Gear Shaft 1...
Page 232 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Manual Transmission Model 540 min (rpm) at 2550 min (rpm) engine speed Rear PTO L3540, L4240, L5040 750 min (rpm) at 2550 min (rpm) engine speed GST Model Rear PTO L5040 540 min...
Page 233: Pto Clutch
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [2] PTO CLUTCH (1) Shift Linkage The shift lever (1) and the PTO clutch valve (4) are connected by the PTO wire (3) as shown in the left figure. When the shift lever is moved to the B side, the PTO clutch valve (4) is set at “ENGAGED”...
Page 234: Operation
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (3) Operation The oil flows into the clutch valve and opens the check valve (1). When the shift lever is set at the “ENGAGED” position, the spool (2) is turned to (a) position, then the oil flows through the spool (2) into the accumulator and the clutch pack.
Page 235: Two Stage Pto (Manual Transmission Model)
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [3] TWO STAGE PTO (MANUAL TRANSMISSION MODEL) (1) Power Train The two stage PTO gear section is located in the mid case, and it uses constant mesh. (1) Gear for High L : Lo-speed Shift...
Page 236 SERVICING CONTENTS 1. TROUBLESHOOTING ..................3-S1 [1] GENERAL ....................3-S1 [2] MANUAL TRANSMISSION MODEL ............3-S3 [3] GST SYSTEM ..................3-S5 [4] HST SYSTEM ..................3-S11 [5] PTO SYSTEM ..................3-S19 2. SERVICING SPECIFICATIONS ..............3-S20 [1] ALL MODEL ...................3-S20 [2] GLIDE SHIFT TRANSMISSION (GST) MODEL .........3-S21 [3] HST ......................3-S22 [4] PTO CLUTCH ..................3-S22 3.
Page 237 (4) Differential Gears ................3-S118 [2] GLIDE SHIFT TRANSMISSION (GST) MODEL ......3-S121 (1) Bearing, Gear and Shaft..............3-S121 (2) Synchronizer Gear ................. 3-S121 (3) PTO Clutch..................3-S121 (4) Differential Gears ................3-S121 (5) GST Clutch..................3-S121 [3] HYDROSTATIC TRANSMISSION (HST) MODEL ......3-S123 (1) Bearing, Gear and Shaft..............
Page 238 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 1. TROUBLESHOOTING [1] GENERAL Reference Symptom Probable Cause Solution Page Excessive Transmission fluid insufficient Replenish Transmission Noise Gear worn or backlash improper Replace 3-S118, S119 Bearing worn or broken Replace 3-S115 Shift fork worn...
Page 239 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Reference Symptom Probable Cause Solution Page Differential Lock Differential lock pedal return spring weaken or Replace – Pedal Does Not damaged Return Differential lock shifter pin bent or damaged Replace 3-S66, S86, S112...
Page 240: Manual Transmission Model
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [2] MANUAL TRANSMISSION MODEL Electrical Diagnosis by Electrical Instrument Panel (InteliPanel) 3-S3 KiSC issued 04, 2010 A...
Page 241 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Error Display for Manual Transmission Model Display on LCD Reference Trouble Item Probable Cause Solution Screen Page Electronic • Electronic instrument • Replace the 9-S18 instrument panel memory device electronic panel memory failure...
Page 242: Gst System
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [3] GST SYSTEM Electrical Diagnosis by Electronic Instrument Panel (IntelliPanel) 3-S5 KiSC issued 04, 2010 A...
Page 243 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Error Display for GST Model Display on LCD Reference Trouble Item Probable Cause Solution Screen Page Electronic • Electronic instrument • Replace the 9-S18 instrument panel panel memory device electronic instrument memory device...
Page 244 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Error Display for GST Model (Continued) Display on LCD Reference Trouble Item Probable Cause Solution Screen Page Proportional • Output voltage of • Check the connector – reducing valve proportional reducing valve of proportional...
Page 245 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Error Display for GST Model (Continued) Display on LCD Reference Trouble Item Probable Cause Solution Screen Page Solenoid 4 • Solenoid output terminal’s • Able to travel at – failure voltage is out of...
Page 246 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Error Message Does not Indicate on LCD Reference Symptom Probable Cause Solution Page The Tractor Does Not Oil level is low Check oil level or fill Move While Shifted oil to proper level...
Page 247 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Error Message Does not Indicate on LCD (Continued) Reference Symptom Probable Cause Solution Page The Time Needed to Oil level is too low Check oil level or fill Start the Tractor oil to proper level...
Page 248: Hst System
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [4] HST SYSTEM Electrical Diagnosis by Electronic Instrument Panel (IntelliPanel) 3-S11 KiSC issued 04, 2010 A...
Page 249 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Error Display for HST Model Display on LCD Reference Trouble Item Probable Cause Solution Screen Page Electronic • Electronic instrument • Replace the 9-S18 instrument panel panel memory device electronic instrument memory device...
Page 250 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Error Display for HST Model (Continued) Display on LCD Reference Trouble Item Probable Cause Solution Screen Page HST pedal • Sensor output terminal is • The running that – sensor failed out of adjustment uses the pedal is •...
Page 251 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Error Display for HST Model (Continued) Display on LCD Reference Trouble Item Probable Cause Solution Screen Page Throttle sensor • Sensor output terminal is • Travel motion is – failed out of adjustment possible.
Page 252 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Error Display for HST Model (Continued) Display on LCD Reference Trouble Item Probable Cause Solution Screen Page • Output voltage of • Travel motion is – proportional proportional valve terminal possible on the...
Page 253 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Error Message Does not Indicate on LCD Reference Symptom Probable Cause Solution Page System Will Not Oil level is low Check oil level or fill Operate in Either oil to proper level Direction...
Page 254 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Error Message Does not Indicate on LCD (Continued) Reference Symptom Probable Cause Solution Page Loss of Power Oil level is too low Check oil level or fill oil to proper level Charge pressure is too low...
Page 255 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Error Message Does not Indicate on LCD (Continued) Reference Symptom Probable Cause Solution Page Machine Will not Potentiometer defective Inspect or replace – Stop in Neutral potentiometer Position System Operates in Check and high pressure relief valve defective...
Page 256: Pto System
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [5] PTO SYSTEM PTO CLUTCH Reference Symptom Probable Cause Solution Page PTO Clutch Slip Operating pressure is low Adjust 3-S26 PTO clutch valve malfunctioning Repair or replace 3-S59 Clutch disc or drive plate excessively worn...
Page 257: Servicing Specifications
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 2. SERVICING SPECIFICATIONS [1] ALL MODEL Item Factory Specification Allowable Limit PTO Clutch Valve Operating 2.30 to 2.50 MPa – Condition Pressure 23.5 to 25.4 kgf/cm • Engine Speed : Maximum 334 to 362 psi •...
Page 258: Glide Shift Transmission (Gst) Model
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [2] GLIDE SHIFT TRANSMISSION (GST) MODEL Item Factory Specification Allowable Limit GST System Pressure Setting Pressure 2.30 to 2.50 MPa – Condition 23.5 to 25.4 kgf/cm • Engine Speed : Idling 334 to 362 psi •...
Page 259: Hst
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [3] HST Item Factory Specification Allowable Limit Check and High Pressure Relief Valve Setting Pressure 34.0 to 37.5 MPa – Condition 347 to 382 kgf/cm • Engine Speed : Maximum 4940 to 5430 psi •...
Page 260: Tightening Torques
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : Refer to “5. TIGHTENING TORQUES” at “G. GENERAL” section.)
Page 261 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [ALL MODEL] Item N·m kgf·m lbf·ft Joint bolt for PTO delivery pipe 35 to 39 3.5 to 3.9 26 to 29 Engine and clutch housing mounting screw 78 to 90 7.9 to 9.2...
Page 262 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [MANUAL TRANSMISSION MODEL] Item N·m kgf·m lbf·ft Main shift base mounting screw 24 to 27 2.4 to 2.8 18 to 20 Main shift arm mounting screw 9.81 to 11.2 1.00 to 1.15 7.24 to 8.31...
Page 263: Checking And Adjusting
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 4. CHECKING AND ADJUSTING [1] PTO CLUTCH VALVE Operating Pressure of PTO Clutch Valve 1. Start the engine and warm up the transmission fluid, and then stop the engine. 2. Remove the plug (1) (PT 1/8) on the PTO valve spool (2).
Page 264: Glide Shift Transmission (Gst) Model
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [2] GLIDE SHIFT TRANSMISSION (GST) MODEL (1) Electrical Adjusting [GST Fine-adjustment with Electronic Instrument Panel (IntelliPanel)] NOTE • Before executing the following fine-adjustment, refer to “Testing, Setting and Adjusting by Electronic Instrument Panel” at “Electrical System” section.
Page 265 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM GST Valve Fine-adjustment (Setting the function of proportional reducing valve) NOTE • When the ECU or GST valve is replaced, this adjustment is required. 1. Push down both the display mode switch and the travel speed switch at once, continue holding switches, and then start the engine.
Page 266 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM GST Shift Shock Fine-adjustment Mode (Adjusting the clutch engaging interval) NOTE • When the sense of shifting shock is not suitable, shifting shock can be changed by this adjustment. 1. Push down both the display mode switch and the travel speed switch at once, continue holding switches, and then start the engine.
Page 267: Hydraulic Checking
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (2) Hydraulic Checking Checking GST System Pressure 1. Start the engine and warm up the transmission fluid, and then stop the engine. 2. Remove the GST system pressure checking port (1) plug (PT 1/ 8) on the GST valve (2).
Page 268 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Checking Regulating Valve Setting Pressure 1. Start the engine and warm up the transmission fluid, and then stop the engine. 2. Remove the pressure checking port (5) plug (PT 1/8). 3. Install the adaptor “7” to checking port (5) and then install the adaptor “D”, the threaded joint, cable and pressure gauge.
Page 269 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Checking Clutch Pack Pressure 1. Start the engine and warm up the transmission fluid, and then stop the engine. 2. Remove the clutch pack pressure checking port plug (PT 1/8) on the GST valve (2).
Page 270: Hydrostatic Transmission (Hst) Model
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [3] HYDROSTATIC TRANSMISSION (HST) MODEL (1) Electrical Adjusting [adjustment with Electronic Instrument Panel (intellipanel)] NOTE • Before executing the following fine-adjustment, refer to “Testing, Setting and Adjusting by Electronic Instrument Panel” of an Electrical System section.
Page 271 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Adjustment of HST Sensor (HST Pedal, Range Shift Lever, Cruise Lever, HST Response Dial, Fine-adjustment Mode) NOTE • When any of ECU, HST pedal sensor, cruise control lever position sensor, swash plate position sensor, range gear...
Page 272 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Adjustment of HST Sensor (HST Pedal, Range Shift Lever, Cruise Lever, HST Response Dial, Fine-adjustment Mode) (Continued) 6. STEP-01 is displayed (d) : Follow the procedures as follows. - Cruise control lever : Set the “Maximum forward position”.
Page 273 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Adjustment of throttle Sensor NOTE • When the ECU or throttle sensor is replaced, this adjustment is required. • Tractor Condition Parking brake : Set the Apply the Parking Brake Cruise Control Lever : Set the Neutral Position...
Page 274: Hydraulic Checking And Adjusting
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (2) Hydraulic Checking and Adjusting Checking High Pressure Relief Valve Pressure CAUTION • When checking, park the machine on flat ground, apply the parking brake. 1. Remove the hex. socket head plug from P1 or P2 port. (P1 is for forward and P2 is for reverse.)
Page 275 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Checking Charge Relief Pressure CAUTION • When checking, park the machine on flat ground, apply the parking brake. NOTE • Use a new transmission oil filter. 1. Remove the hex. socket head plug from P port (1).
Page 276 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Checking and Adjusting HST Neutral Position CAUTION • Park the tractor on a flat place and keep all the levers at neutral position. • Jack up the engine tractor and bring it in the 2WD mode.
Page 277 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Cruise Lever Operating Force 1. Push the cruise control lever (1) into maximum tied position. After that pull it 50 mm (2.0 in.) back. 2. Measure the force needed to move the cruise control lever back into the maximum position at the top of the lever grip (2).
Page 278: Preparation
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 5. PREPARATION [1] COOLANT AND LUBRICANTS • Draining coolant (Cabin Model only) and transmission fluid are referred to “5. PREPARATION” at “1. ENGINE” section. [2] ROPS MODEL (1) Dismounting the Step and Floor Seat ROPS (Center ROPS Type) 1.
Page 279 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM ROPS 1. Remove the lower connector (2). 2. Remove the plate mounting screws (4), (9). 3. Remove the upper frame (1) from ROPS lower frame (6). (When reassembling) NOTE • Do not firmly tighten all screws until most components are attached.
Page 280 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Steering Joint and Electrical Wiring 1. Remove the shield RH (1). (If equipped) 2. Remove the fuel tank frame support (2). 3. Remove the universal joint bolt (5) and steering joint shaft support (4), and then remove the steering joint shaft 2 (3).
Page 281 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Electrical Wiring 1. Remove the shield LH (3). (If equipped) 2. Disconnect the wiring connectors for a alternator (1), coolant temperature sensor (7), oil pressure switch (4), fuel sensor (2), starter motor (5) and battery (6).
Page 282 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Clutch Rod, Brake Rod and Electrical Wiring 1. Remove the clutch rod (1) and brake rod LH (2). 2. Remove the harness cover (4). 3. Remove the fuse box (3). 4. Remove the brake rod RH (11).
Page 283 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Seat and Lever Grips 1. Remove the seat (1) with seat bracket (2). 2. Remove the lever grip for main shift lever (5), range gear shift lever (4), front wheel drive lever (6), auxiliary control lever (10), position control lever (8), draft control lever (9) (if equipped), and PTO gear shift lever (11).
Page 284 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Linkages and Wire Harness 1. Remove the lowering speed adjusting knob (1). 2. Remove the differential lock rod (2). 3. Disconnect the PTO speed change connector (3). 4. Remove the range gear shift rod and range gear shift rod (4).
Page 285 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM PTO Wire and Electric Connector 1. Disconnect the traveling speed sensor connector (1). 2. Disconnect the PTO wire (2) at the PTO clutch valve (4). 3. Remove the coupler support (5) from the stay.
Page 286 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Step and Floor Seat 1. Remove the universal joint bolt (1), and disconnect the steering joint shaft 1 (2). 2. Disconnect the panel frame connector (3) from fuel tank frame. 3. Remove the step and floor seat mounting bolt and nut.
Page 287: Cabin Model
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [3] CABIN MODEL (1) Dismounting Cabin from Tractor Separating Cabin 1. Refer to “6. [2]-(1) Separating Cabin from Tractor” at “10. CABIN” section. W1038316 3-S50 KiSC issued 04, 2010 A...
Page 288: Disassembling And Assembling
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 6. DISASSEMBLING AND ASSEMBLING [1] MANUAL TRANSMISSION MODEL (1) Clutch Housing Hydraulic Pipe 1. Remove the suction pipe 1 (1), PTO delivery pipe (3) and main delivery pipe 1 (2), 2 (6), return pipe (5) with outlet valve (4).
Page 289 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Release Hub and Clutch Lever 1. Draw out the clutch release hub (7) and the release bearing (5) as a unit. 2. Remove the release fork setting screws (4) and fork keys (2).
Page 290 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Main Shift Base 1. Remove the main shift base mounting screws. 2. Take out the main shift base (1) and main shift arm (3) as a unit. (When reassembling) • Apply liquid gasket (Three Bond 1208C or equivalent) to joint face of the clutch housing case and main shift base.
Page 291 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 23T (24T) Gear Shaft, 27T (26T) Gear and Front Axle Drive Shaft 1. Remove the 23T (24T) gear shaft (3). 2. Remove the external snap ring (1) and 27T (26T) gear (2). 3. Pull out the front axle drive shaft (4) to the rear side (4WD only).
Page 292 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Shaft Assemblies 1. Remove the external snap ring (1) and collar (2). 2. Draw out the shaft assemblies (3), (5), (6), (7), (8). (1) External Snap Ring (5) 18T Gear Shaft Assembly (2) Collar...
Page 293: Mid Case
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (2) Mid Case Hydraulic Pipes 1. Remove the suction pipe 1, 2 (3) (1) with oil filter bracket (2). 2. Remove the PTO delivery pipe (5) and main delivery pipe 1 (4) and 2 (6).
Page 294 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Separating Mid Case 1. Lift up the shuttle shift arm (1). 2. Separate the mid case from the clutch housing after removing their mounting screws. (When reassembling) • Apply liquid gasket (Three Bond 1208C or equivalent) to joint face of clutch housing and mid case.
Page 295 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Shaft Assemblies 1. Remove the external snap ring (5). 2. Draw out the shaft assemblies (1), (2), (3) and shuttle fork rod (4). (1) Reverse Gear Shaft (4) Shuttle Fork Rod (2) Shuttle Gear Shaft...
Page 296 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Clutch Hub and Clutch Discs of PTO Clutch 1. Remove the internal snap ring (8), and then take out the clutch discs (5), the back plate (7), the steel plates(4) and (6), the hub (3) and the bearing (2).
Page 297 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Clutch Case 1. Remove the external snap ring (1). 2. Remove the clutch case (7) and brake disc (5). (When reassembling) • Direct the contact part of the brake disc (5) to the brake plate (6).
Page 298: Transmission Case
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (3) Transmission Case Hydraulic Pipe 1. Remove the main delivery pipe 1 (1). 2. Remove the PTO speed change rod (2). (1) Main Delivery Pipe 1 (2) PTO Speed Change Rod W10769040 Rear Wheel 1.
Page 299 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Hydraulic Cylinders 1. Disconnect the hydraulic cylinder hoses (2) and return hoses (3) at the rear hydraulic block (1). 2. Remove the two pins, and remove the hydraulic cylinders (4). 35 to 48 N·m...
Page 300 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Separating Mid Case and Transmission Case 1. Remove the screw and pull the PTO shift rod (1). 2. Separate the mid case and transmission case after removing their mounting screws and nuts. (When reassembling) •...
Page 301 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Transmission Bearing Holder 1. Remove the transmission bearing holder mounting screws. 2. Tap out the spring pin (8) on the shift fork rod (3). 3. Jack up the bearing holder (1) by using the two jack bolts (5) until the taper roller bearing (7) can be removed.
Page 302 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Shaft Assemblies 1. Remove the traveling speed sensor (1). 2. Remove the external snap ring (3) of the creep gear shaft (4) to the rear. 3. Take out the range gear shaft assembly (8) with the shift fork rod (9).
Page 303 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Differential Lock Shift Fork 1. Tap out the left side spring pin (4). 2. Remove the cotter pin and take out the clevis pin (3). 3. Draw out the differential lock fork shaft (1) and take out the differential lock shift fork (2).
Page 304 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Bearing and Differential Lock Shifter 1. Secure the differential gear in a vise. 2. Remove the differential lock shifter and taper roller bearing as a unit with a puller. W10246640 Differential Case Cover and Differential Side Gear 1.
Page 305 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Differential Pinion Shaft and Differential Pinion 1. Draw out the differential pinion shaft 2 (5), and take out the differential pinion (3) and differential pinion washer (4). 2. Draw out the differential pinion shaft (1), and take out the differential pinion (2) and differential pinion washer.
Page 306: Glide Shift Transmission Model
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [2] GLIDE SHIFT TRANSMISSION MODEL (1) Clutch Housing Hydraulic Pipes 1. Remove the suction pipe 1 (1), PTO delivery pipe (2) and main delivery pipe 1 (3). (When reassembling) • The PTO delivery pipe joint screw (5) with orifice (4) assemble to PTO valve.
Page 307 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Release Holder and Clutch Lever 1. Draw out the clutch release hub (7) and the release bearing (5) as a unit. 2. Remove the release fork setting screws (4) and fork keys (2).
Page 308 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Shuttle Shift Arm and GST Valve Assembly 1. Remove the GST pipe (1). 2. Disconnect the brake rods (3) both side. 3. Remove the shuttle shift arm stopper screw, and then pull the shuttle shift shaft (2) with shuttle shift arm (5) up.
Page 309 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Separating Clutch Housing and Mid Case 1. Remove the main delivery pipe 2 (1) and return pipe (4) with outlet valve (3). 2. Remove the suction pipes with filter bracket (2). 3. Remove the clutch housing and mid case mounting screws and nuts.
Page 310 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 24T Gear Shaft and 26T Gear 1. Remove the 24T gear shaft (1). 2. Remove the external snap ring (3) and 26T gear (2). (When reassembling) • Install the oil seal (4) on the 18T gear shaft (6), noting the direction of the oil seal (4) as shown in the figure.
Page 311 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Shaft Assemblies 1. Remove the external snap ring (1) and thrust collar (2). 2. Draw out the shaft assemblies (4), (5), (6), (7), (9) and shift forks (10) and rods. 3. Pull out the front axle drive shaft (8) to the rear side.
Page 312 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Counter Shaft (1) Internal Snap Ring (2) Bearing (3) Needle Bearing (4) 24T Gear (4th) (5) External Snap Ring (6) Synchronizer Ring (7) Synchronizer Spring (8) Hub (9) Synchronizer Key (10) Shifter (11) 29T Gear (3rd)
Page 313: Mid Case
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (2) Mid Case Hydraulic Pipes 1. Remove the main delivery pipe (1), (5) and return pipe (8) with outlet valve (7). 2. Remove the suction pipe 2 (4), 1 (9) with oil filter bracket (3).
Page 314 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Separating Mid Case and Transmission Case 1. Separate the mid case and transmission case after removing their mounting screws. (When reassembling) • Confirm to insert the PTO shaft to PTO clutch firmly, turning the PTO shaft.
Page 315 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Mid Case Bearing Holder 1. Remove the internal snap ring (9) and remove the disc spring (8) and clutch input hub (7). 2. Remove the external snap ring (6) and remove the GST clutch case (5).
Page 316 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM GST Clutch Discs 1. Take out the clutch hub (2), clutch disc (3) and steel plate (5), (6) from clutch case (1). (When reassembling) • Assemble the three steel plates (6) with plug rubbers (4) to the front side, one steel plate (5) without plug rubber to the piston side.
Page 317 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Shuttle Shift Gears (1) External Snap Ring (2) Thrust Collar (3) Bearing (4) Thrust Collar (5) External Snap Ring (6) Thrust Collar (7) External Snap Ring (8) Hub (9) Needle Bearing (10) 21T Gear...
Page 318: Transmission Case
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (3) Transmission Case Hydraulic Pipes and Brake Rods 1. Remove the main delivery pipe 2 (1) and GST pipe (2). 2. Remove the brake rods (3). (When reassembling) • The PTO delivery pipe joint screw (5) with orifice (4) assemble to PTO valve.
Page 319 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM ROPS, 3 Point Linkages, Hydraulic Cylinders and Others 1. Remove the top link. 2. Remove the lift rods (2), lower links (5) and check chain (1) as a unit. 3. Remove the PTO shaft cover (4).
Page 320 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Brake Case 1. Remove the brake case mounting screws and nuts. 2. Separate the brake case, tapping the brake case lever lightly. (When reassembling) • Apply grease to the steel ball seats. (Do not grease excessively.) •...
Page 321 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Pinion Bearing Cover 1. Remove the stake of lock nut (5). 2. Lock the turning of spiral bevel pinion and remove the lock nut (5). 3. Remove the pinion bearing case mounting screws.
Page 322 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Shaft Assemblies 1. Remove the traveling speed sensor (1). 2. Remove the external snap ring (3) of the creep gear shaft (4) to the rear. 3. Take out the range gear shaft assembly (8) with the shift fork rod (9).
Page 323 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Differential Lock Shift Fork 1. Tap out the left side spring pin (4). 2. Remove the cotter pin and take out the clevis pin (3). 3. Draw out the differential lock fork shaft (1) and take out the differential lock shift fork (2).
Page 324 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Disassembling Differential Gears Refer to “(3) Transmission” of “[1] MANUAL TRANSMISSION MODEL” in this section. W1056552 3-S87 KiSC issued 04, 2010 A...
Page 325: Regulating Valve
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (4) Regulating Valve Front Grille, Skirt and Battery Cable 1. Open the bonnet and disconnect the battery negative cable. 2. Disconnect the head light connector and remove the front grille (3). 3. Remove the skirt RH (2).
Page 326 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Disassembling Regulating Valve NOTE • The regulating valve has been precisely machined and assembled. It is advisable not to disassemble it as long as there is no necessary. 1. Remove the plate (8) and take out reducing spool (11), spring retainer (5) and spring (10).
Page 327: Gst Valve Assembly
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (5) GST Valve Assembly NOTE • The GST valve has been precisely machined and assembled. It is advisable not to disassemble it. If unavoidably necessary to do it, take the following precautions. 1. Tighten up the screws and nuts to their specified torques.
Page 328 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Solenoid Valve 1. Remove the cover (7). 2. Disconnect the connector (8) and remove the solenoid valves. (When reassembling) • Be sure to install the each solenoid valve to their original positions as shown in the photo and table below.
Page 329 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Shift Check Valve 1. Remove the lower body mounting hex. socket head cap screws (1). 2. Separate the upper body (2) and lower body (4). 3. Take out the 1-2 (11), 3-4 (10) shift check pin, sub-range shift check pin (7), main range shift check pin (6), shuttle shift check pin (8), balls (5) and pin (9) from lower body (4).
Page 330 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Shift Piston 1. Separate the upper body, and lower body. (See page 3-S83.) 2. Tap out the spring pins (6), and remove the shifters (5). (For 1-2, 3-4 and sub-range shift piston) 3. Remove the internal snap ring (1) and cover (2), and then take out the shift piston (4), (9) with neutral piston (3).
Page 331 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Low-pass Valve IMPORTANT • Do not adjust or remove the adjustor (2), otherwise the GST clutch engagement feeling will be changed. If this valve is disassembled, be sure to check and adjust the low-pass pressure.
Page 332 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Proportional Reducing Valve and Filter 1. Remove the valve mounting hex. socket head cap screws. 2. Remove the proportional reducing valve (2). 3. Remove the cover (6). 4. Take out the plug (3) and orifice support (4) with filter (5).
Page 333: Hydrostatic Transmission Model
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [3] HYDROSTATIC TRANSMISSION MODEL (1) Clutch Housing Hydraulic Pipe 1. Disconnect the suction pipe (1) from hydraulic pump. 2. Remove the main delivery pipe 1 (3) and main delivery pipe 2 (4). 3. Disconnect the power steering delivery pipe (2) from regulating valve.
Page 334 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Clutch Lever, Release Fork and Release Bearing 1. Remove the release fork mounting screws (4). 2. Draw out the clutch lever (3) to remove the release fork (1). 3. Remove the release bearing and release hub together.
Page 335 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Separating Clutch Housing and Mid Case 1. Remove the clutch housing and mid case mounting screws and nuts. 2. Separate the clutch housing and mid case. (When reassembling) • Be sure to install the gasket.
Page 336 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Hi-Lo Valve Assembly 1. Remove the Hi-Lo valve assembly (1). (When reassembling) • Be sure to install the gasket. • Replace the gasket with a new one. Hi-Lo valve assembly 29 to 34 N·m Tightening torque mounting hex.
Page 337 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Shaft Case, Input Shaft, Gear 1. Remove the shaft case mounting screws. 2. Screw down the M6 jack bolt (3) into the shaft case (1) and pull it out. 3. Take out the shaft case (1).
Page 338 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Cylinder Block Assemblies 1. Remove both motor and pump cylinder block (1), (2) with pistons. 2. Remove the motor swashplate (3). (When reassembling) • Apply clean hydrostatic transmission oil to cylinder blocks. NOTE •...
Page 339 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Servo Piston Assembly NOTE • The servo piston has been precisely machined and assembled. It is advisable not to disassemble it as long as there is no necessary. 1. Remove the servo piston (1) under cover.
Page 340 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Charge Relief Valve 1. Remove the hex. socket head plug (5). 2. Remove the spring guide (3), shim (4), spring (2) and valve poppet (1). (When reassembling) NOTE • Install valve component, noting the number of shims (4) in the charge relief valve.
Page 341: Mid Case
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (2) Mid Case Filter Bracket, Suction Pipes and Brake Rod 1. Remove the suction pipes (5). 2. Remove the hydraulic filter with bracket (2). 3. Remove the brake rods (4). 4. Remove the PTO delivery pipe (1).
Page 342 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Separating Mid Case and Transmission Case 1. Separate the mid case and transmission case after removing their mounting screws. (When reassembling) • Confirm to insert the PTO shaft to PTO clutch firmly, turning the PTO shaft.
Page 343 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Mid Case Bearing Holder with Gears 1. Remove the mid case bearing holder 1 (5). 2. Take out the gear shafts (4), (8), (7), (6). 3. Remove the PTO drive shaft (1). 4. Remove the mid case bearing holder 2 (2) with PTO clutch (10).
Page 344: Transmission Case
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (3) Transmission Case Rear Wheel 1. Place disassembling stand under the transmission case, and support it with a jack. 2. Remove the rear wheels. 3. After removing the rear wheels, support it at both sides of rear axle by stands.
Page 345 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 3 Point Linkages, Hydraulic Cylinders and Others 1. Remove the top link. 2. Remove the lift rods (2), lower links (6) and check chain (1) as a unit. 3. Remove the PTO shaft cover (5).
Page 346 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Brake Case 1. Remove the range gear shift lever fulcrum screw. 2. Remove the brake case mounting screws and nuts. 3. Separate the brake case, tapping the brake case lever lightly. (When reassembling) •...
Page 347 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Transmission Bearing Holder 1. Remove the transmission bearing holder mounting screws. 2. Tap out the spring pin (8) on the shift fork rod (3). 3. Jack up the bearing holder (1) by using the two jack screws (5) until the taper roller bearing (7) can be removed.
Page 348 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Shaft Assemblies 1. Remove the traveling speed sensor (1). 2. Take out the spiral bevel pinion shaft assembly (4) with shift fork (6), range gear shaft assembly (5) and PTO drive shaft assembly (3).
Page 349 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Differential Lock Shift Fork 1. Tap out the left side spring pin (4). 2. Remove the cotter pin and take out the clevis pin (3). 3. Draw out the differential lock fork shaft (1) and take out the differential lock shift fork (2).
Page 350: Regulating Valve
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Differential Gear Assembly 1. Remove the differential support, noting the number of left shims. 2. Take out the differential gear assembly, noting the number of right shims. (When reassembling) • Check the spiral bevel gear for wear or damage. If it is no longer serviceable, replace it.
Page 351 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Disassembling Regulating Valve NOTE • The regulating valve has been precisely machined and assembled. It is advisable not to disassemble it as long as there is no necessary. 1. Remove the cap nuts (1) (27) and lock nuts (3) (25).
Page 352: Servicing
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM 7. SERVICING [1] MANUAL TRANSMISSION MODEL (1) Bearing, Gear and Shaft Checking Bearing 1. Hold the inner race, and push and pull the outer race in all directions to check for wear and roughness.
Page 353: Synchronized Gear
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (2) Synchronized Gear Clearance between Shift Fork and Shifter Groove 1. Measure the width of shift fork. 2. Measure the shifter groove width, and calculate the clearance. 3. If the clearance exceeds the allowable limit, replace them.
Page 354: Pto Clutch
TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM (3) PTO Clutch PTO Clutch Disc Wear 1. Measure the thickness of PTO clutch disc with vernier calipers. 2. If the thickness is less than the allowable limit, replace it. 1.70 to 1.90 mm Factory spec.
Page 355 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Thickness of Seal Ring 1. Measure the thickness of seal rings (1) with an outside micrometer. 2. If the measurement is less than the allowable limit, replace it. 2.45 to 2.50 mm Factory spec.
Page 356 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Backlash and Tooth Contact between Spiral Bevel Gear and Spiral Bevel Pinion Shaft 1. Set the dial indicator (lever type) with its finger on the tooth surface. 2. Measure the backlash by fixing the spiral bevel pinion shaft (3) and moving the spiral bevel gear (4) by hand.
Page 357 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Clearance between Differential Case Bore (Differential Case Cover Bore) and Differential Side Gear Boss 1. Measure the bore I.D. of the differential case and differential case cover. 2. Measure the differential side gear boss O.D. and calculate the clearance.
Page 358 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [2] GLIDE SHIFT TRANSMISSION (GST) MODEL (1) Bearing, Gear and Shaft Refer to “[1] MANUAL TRANSMISSION MODEL” of “7. SERVICING” in this section. (2) Synchronizer Gear Refer to “[1] MANUAL TRANSMISSION MODEL” of “7. SERVICING” in this section.
Page 359 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Thickness of Seal Ring 1. Measure the thickness of seal rings (1) with an outside micrometer. 2. If the measurement is less than the allowable limit, replace it. 2.45 to 2.50 mm Factory spec.
Page 360 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM [3] HYDROSTATIC TRANSMISSION (HST) MODEL (1) Bearing, Gear and Shaft Refer to “[1] MANUAL TRANSMISSION MODEL” of “7. SERVICING” in this section. (2) PTO Clutch Refer to “[1] MANUAL TRANSMISSION MODEL” of “7. SERVICING” in this section.
Page 361 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Cylinder Block Face 1. Check the polished face (1) of cylinder block for scoring. 2. If scored, replace cylinder block assembly. 3. Check the spring (2) for breakage. 4. If broken, replace cylinder block assembly.
Page 362 TRANSMISSION L3540, L4240, L5040, L5240, L5740, WSM Check and High Pressure Relief Valve 1. Check the valve plug (1) and valve for scratches and damage. 2. Check the valve seat in the port block for damage. 3. Check the spring (3) for breakage and wear.
Page 363 REAR AXLE KiSC issued 04, 2010 A...
Page 364 MECHANISM CONTENTS 1. STRUCTURE ....................4-M1 KiSC issued 04, 2010 A...
Page 365 REAR AXLE L3540, L4240, L5040, L5240, L5740, WSM 1. STRUCTURE [L3540, L4240] (1) Ball Bearing (4) Differential Gear Shaft (7) Differential Pinion (10) Differential Lock Shifter (2) Rear Axle (5) Brake Case (8) Ring Gear (11) Differential Case (3) Rear Axle Case...
Page 366 REAR AXLE L3540, L4240, L5040, L5240, L5740, WSM [L5040, L5240, L5740] (1) Rear Axle Cover (5) Spacer (9) Differential Pinion (12) Differential Case (2) Ball Bearing (6) Differential Gear Shaft (10) Ring Gear (13) Differential Lock Shifter (3) Rear Axle...
Page 367 SERVICING CONTENTS 1. TROUBLESHOOTING ..................4-S1 2. TIGHTENING TORQUES ................4-S2 3. PREPARATION ....................4-S3 4. DISASSEMBLING AND ASSEMBLING ............4-S6 KiSC issued 04, 2010 A...
Page 368 REAR AXLE L3540, L4240, L5040, L5240, L5740, WSM 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Excessive or Bearing worn Replace – Unusual Noise at All Insufficient or improper type of transmission fluid Replenish or change Time used Noise while Turning...
Page 369 REAR AXLE L3540, L4240, L5040, L5240, L5740, WSM 2. TIGHTENING TORQUES Tightening torques of screws and nuts on the table below are especially specified. (For general use screws and nuts : Refer to “5. TIGHTENING TORQUES” at “G. GENERAL” section.) Item N·m...
Page 370 L5040, L5240, L5740 11.9 U.S.gals 9.9 Imp.gals IMPORTANT • Use only KUBOTA SUPER UDT fluid. Use of other oils may damage the transmission or hydraulic system. (Refer to “4. LUBRICANTS, FUEL AND COOLANT” at “G. GENERAL” section.) • Do not mix different brands of fluid together.
Page 371 REAR AXLE L3540, L4240, L5040, L5240, L5740, WSM Rear Wheel and Cabin Mount Screw (Cabin Model) 1. Place the disassembling stand under the transmission case. 2. Remove the rear wheel mounting screws and nuts. 3. Remove the rear wheels. 4. Remove the top link and lift rod (1).
Page 372 REAR AXLE L3540, L4240, L5040, L5240, L5740, WSM Rear Axle Case 1. Disconnect the brake rod. 2. Place the disassembling stand under the rear axle case. 3. Remove the rear axle mounting screws and nuts. 4. Separate the rear axle case from brake case.
Page 373 REAR AXLE L3540, L4240, L5040, L5240, L5740, WSM 4. DISASSEMBLING AND ASSEMBLING Rear Axle (1) Rear Axle (2) Oil Seal (3) Internal Snap Ring (4) Ball Bearing (5) Spacer (6) Rear Axle Case (7) Gear (8) Lock Nut (9) Ball Bearing...
Page 374 BRAKES KiSC issued 04, 2010 A...
Page 375 MECHANISM CONTENTS 1. STRUCTURE ....................5-M1 2. OPERATION ....................5-M2 KiSC issued 04, 2010 A...
Page 376 BRAKES L3540, L4240, L5040, L5240, L5740, WSM 1. STRUCTURE (1) Brake Pedal Turnbuckle Rod (4) Brake Cam Lever (7) Brake Plate (9) Parking Brake Cable (2) Brake Pedal (5) Parking Brake Rod (8) Cam Plate (10) Parking Brake Lever (3) Brake Rod (6) Brake Disc This is used hanging type brake pedals to have wider space of the platform.
Page 377 BRAKES L3540, L4240, L5040, L5240, L5740, WSM 2. OPERATION (1) Brake Case (3) Cam Plate (5) Brake Cam Lever (7) Brake Cam (2) Brake Disc (4) Steel Ball (6) Plate (8) Brake Shaft The brakes are provided on the power transmitting shafts (brake shafts (8)) through which power is transmitted to the final reduction system.
Page 378 SERVICING CONTENTS 1. TROUBLESHOOTING ..................5-S1 2. SERVICING SPECIFICATIONS ..............5-S2 3. TIGHTENING TORQUES ................5-S3 4. CHECKING AND ADJUSTING ..............5-S4 [1] BRAKE PEDAL ..................5-S4 5. DISASSEMBLING AND ASSEMBLING ............5-S5 [1] BRAKE PEDAL ..................5-S5 [2] BRAKE CASE ..................5-S7 6. SERVICING ....................5-S11 KiSC issued 04, 2010 A...
Page 379 BRAKES L3540, L4240, L5040, L5240, L5740, WSM 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Uneven Braking Brake pedal play unevenly adjusted Adjust 5-S4 Force Brake disc worn Replace 5-S10, S11 Cam plate warped Replace 5-S10, S11 Brake Drags Brake pedal play too small...
Page 380: Servicing Specifications
BRAKES L3540, L4240, L5040, L5240, L5740, WSM 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Brake Pedal Free Travel 15 to 20 mm – 0.59 to 0.78 in. Cam Plate Flatness – 0.30 mm 0.012 in. Cam Plate and Ball Height 20.9 to 21.1 mm...
Page 381 BRAKES L3540, L4240, L5040, L5240, L5740, WSM 3. TIGHTENING TORQUES Tightening torques of screws and nuts in the table below are especially specified. (For general use screws and nuts: Refer to “5. TIGHTENING TORQUES” at “G. GENERAL” section.) Item N·m kgf·m...
Page 382: Checking And Adjusting
BRAKES L3540, L4240, L5040, L5240, L5740, WSM 4. CHECKING AND ADJUSTING [1] BRAKE PEDAL Checking Brake Pedal Free Travel CAUTION • Stop the engine and chock the wheels before checking brake pedal. 1. Release the parking brake. 2. Slightly depress the brake pedals and measure free travel (L) at top of pedal stroke.
Page 383: Disassembling And Assembling
BRAKES L3540, L4240, L5040, L5240, L5740, WSM 5. DISASSEMBLING AND ASSEMBLING [1] BRAKE PEDAL Panel Cover 1. Remove the panel cover (1). (1) Panel Cover W1017418 Meter Panel (Electronic Instrument Panel) 1. Disconnect the hazard switch connector (4), main switch connector (7), mode switch connector (5), position switch connector (8) and brake switch connector (6).
Page 384 BRAKES L3540, L4240, L5040, L5240, L5740, WSM Brake Pedal and Brake Rod (1) Brake Switch (2) External Snap Ring (3) Oil Seal (4) Needle Bearing (5) Brake Pedal RH (6) Spring (7) Spring Pin (8) Brake Pedal LH (9) Clutch Pedal...
Page 385: Brake Case
L5040, L5240, L5740 11.9 U.S.gals 9.9 Imp.gals IMPORTANT • Use only KUBOTA SUPER UDT fluid. Use of other oils may damage the transmission or hydraulic system. (Refer to “4. LUBRICANTS, FUEL AND COOLANT” at “G. GENERAL” section.) • Do not mix different brands of fluid together.
Page 386 BRAKES L3540, L4240, L5040, L5240, L5740, WSM Rear Wheel and Cabin Mount Screw (Cabin Model) 1. Place the disassembling stand under the transmission case. 2. Remove the rear wheel mounting screws and nuts. 3. Remove the rear wheels. 4. Remove the top link and lift rod (1).
Page 387 BRAKES L3540, L4240, L5040, L5240, L5740, WSM Rear Axle Case 1. Disconnect the brake rod. 2. Place the disassembling stand under the rear axle case. 3. Remove the rear axle mounting screws and nuts. 4. Separate the rear axle case from brake case.
Page 388 BRAKES L3540, L4240, L5040, L5240, L5740, WSM Brake Case 1. Disconnect the brake rod (1). 2. Place a block of wood (5) between floor seat (4) and lift arm support to support the floor seat. (ROPS model) 3. Remove the floor seat mounting bolts and nuts. (ROPS model) 4.
Page 389: Servicing
BRAKES L3540, L4240, L5040, L5240, L5740, WSM 6. SERVICING Brake Cam Lever Movement 1. Assemble the brake cam (1) and brake cam lever (2). 2. Move the brake cam lever by hand to check the movement. 3. If the movement is heavy, refine the brake cam lever or brake case with sandpaper.
Page 390 FRONT AXLE KiSC issued 04, 2010 A...
Page 391 MECHANISM CONTENTS 1. STRUCTURE ....................6-M1 KiSC issued 04, 2010 A...
Page 392 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM 1. STRUCTURE (for L3540, L4240) (1) Axle (7) Bevel Gear (13) Spiral Bevel Gear (19) Differential Yoke Shaft (2) Collar (8) Differential Side Gear (14) Spiral Bevel Pinion Shaft (20) Differential Case...
Page 393 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM (for L5040, L5240, L5740) (1) Axle (7) Bevel Gear (13) Front Axle Bracket, Front (19) Front Axle Case (2) Collar (8) Bevel Gear Case (14) Spiral Bevel Gear (20) Differential Yoke Shaft...
Page 394 SERVICING CONTENTS 1. TROUBLESHOOTING ..................6-S1 2. SERVICING SPECIFICATIONS ..............6-S2 3. TIGHTENING TORQUES ................6-S5 4. CHECKING AND ADJUSTING ..............6-S6 5. DISASSEMBLING AND ASSEMBLING ............6-S8 [1] SEPARATING FRONT AXLE ASSEMBLY ..........6-S8 [2] DISASSEMBLING FRONT AXLE ............6-S10 6. SERVICING ....................6-S17 KiSC issued 04, 2010 A...
Page 395 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Front Wheels Tire pressure uneven Adjust G-67 Wander to Right or Improper toe-in adjustment (improper alignment) Adjust 6-S6 Left Clearance between front axle case boss and...
Page 396: Servicing Specifications
FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Front Wheel Alignment Toe-in 2 to 8 mm – 0.08 to 0.3 in. Front Wheel Axial Sway 5.0 mm – 0.196 in. Steering Angle 0.925 to 0.960 rad.
Page 397 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM (Continued) Item Factory Specification Allowable Limit Spiral Bevel Pinion Shaft Turning Torque 0.98 to 1.1 N·m – 0.10 to 0.12 kgf·m 0.73 to 0.86 lbf·ft (for L3540 and L4240) Backlash 0.10 to 0.30 mm –...
Page 398 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM (Continued) Item Factory Specification Allowable Limit (for L5040, L5240 and L5740) Bevel Gear Case Boss to Front Axle Support Bushing Clearance 0.080 to 0.248 mm 1.0 mm 0.0032 to 0.00976 in. 0.039 in.
Page 399 18 to 21 Cylinder cover mounting screw 61 to 70 6.2 to 7.2 45 to 52 Bracket mounting screw and nut (L3540 and L4240) 78 to 90 7.9 to 9.2 58 to 66 Bracket mounting screw and nut 103 to 117 10.5 to 12.0...
Page 400: Checking And Adjusting
FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM 4. CHECKING AND ADJUSTING Toe-in 1. Park the tractor on the flat place. 2. Inflate the tires to the specified pressure. 3. Turn steering wheel so front wheels are in the straight ahead position.
Page 401 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM Adjust Front Axle Pivot 1. Loosen the lock nut (2), tighten the adjusting screw (1) until seated, then tighten the adjusting screw (1) with an additional 1/ 6 turn. 2. Retighten the lock nut (2).
Page 402: Disassembling And Assembling
FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM 5. DISASSEMBLING AND ASSEMBLING [1] SEPARATING FRONT AXLE ASSEMBLY Propeller Shaft 1. Slide the propeller shaft cover (4) and (8) after removing the screws (7). 2. Tap out the spring pins (2), (6) and slide the couplings (1), (5) and then remove the propeller shaft with covers (4), (8).
Page 403 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM Front Wheel and Front Axle Assembly 1. Check the front axle and flywheel housing are securely mounted on the disassembly stand. 2. Loosen the front wheel mounting nuts. 3. Lift the front axle and remove the front wheels.
Page 404: Disassembling Front Axle
6.0 L L5240 6.3 U.S.qts L5740 5.3 Imp.qts IMPORTANT • Use KUBOTA SUPER UDT fluid or SAE80, 90 gear oil. Refer to “4. LUBRICANTS, FUEL AND COOLANT” at “G. GENERAL” section. (1) Check Plug (3) Drain Plug (2) Filling Plug...
Page 405 L5740 116 to 130 lbf·ft W10145200 Bevel Gear Case and Front Gear Case (for L3540 and L4240) 1. Remove the bevel gear case mounting screws. 2. Remove the bevel gear case (2) and front gear case (3) as a unit from the front axle case (1).
Page 406 (3) Shim W10159240 Bevel Gear Case and Gears 1. Remove the axle case support (7). (except L3540 and L4240) 2. Remove the external snap ring (1). 3. Tap the bevel gear case (2) and separate it from the front gear case (3).
Page 407 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM Axle 1. Remove the bearing with a special use puller set (Code No. 07916-09032). 2. Take out the bevel gear (2). 3. Take out the collar (1). 4. Tap out the axle (3).
Page 408 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM Steering Cylinder 1. Support the engine and front axle case by disassembling stand. 2. Remove the bracket mounting screw and nut, and remove the front axle case. 3. Remove the tie-rod joint (1) (right side).
Page 409 4. Remove the spiral bevel pinion shaft (3) by the pinion shaft remover 1 (14). (L3540 and L4240) Remove the spiral bevel pinion shaft (3) by the pinion shaft remover 2 (14) (except L3540 and L4240) NOTE • Refer to “8. SPECIAL TOOL“ at “G. GENERAL” section for the pinion shaft remover 1 and 2.
Page 410 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM Differential Gear 1. Remove the differential case cover mounting screws (9) and then take out the differential case cover (5), ball bearing (6) and spiral bevel gear (7) as a unit. 2. Remove the external snap ring (8), and then remove the ball bearing (6) and spiral bevel gear (7) as a unit with a puller.
Page 411: Servicing
FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM 6. SERVICING Clearance between Differential Case (Differential Case Cover) and Differential Side Gear 1. Measure the differential side gear O.D.. 2. Measure the differential case bore I.D. and calculate the clearance. 3. Measure the differential case cover bore I.D. and calculate the clearance.
Page 412 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM Backlash between Differential Pinion and Differential Side Gear 1. Set a dial gauge (lever type) on a tooth of the differential pinion. 2. Fix the differential side gear and move the differential pinion to measure the backlash.
Page 413 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM Backlash between Spiral Bevel Pinion Shaft and Spiral Bevel Gear 1. Set a dial gauge (lever type) with its finger on the spline of spiral bevel pinion shaft. 2. Measure the backlash by moving the spiral bevel pinion shaft by hand lightly.
Page 414 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM Backlash between Bevel Gear and Bevel Gear 1. Stick a strip of fuse to three spots on the bevel gear (1) with grease. 2. Fix the axle flange and front gear case.
Page 415 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM Clearance between Front Axle Case Bosses and Bracket Bushings 1. Measure the front axle case bosses O.D. with an outside micrometer. 2. Measure the bracket bushing I.D. and calculate the clearance. 3. If the clearance exceeds the allowable limit, replace the bracket bushing.
Page 416 FRONT AXLE L3540, L4240, L5040, L5240, L5740, WSM Clearance between Bevel Gear Case Boss and Front Axle Support Bushing (for L5040, L5240 and L5740) 1. Measure the bevel gear case boss O.D. with an outside micrometer. 2. Measure the support bushing I.D. and calculate the clearance.
Page 417 STEERING KiSC issued 04, 2010 A...
Page 418 MECHANISM CONTENTS 1. STRUCTURE ....................7-M1 2. HYDRAULIC CIRCUIT .................. 7-M2 3. HYDRAULIC PUMP ..................7-M3 4. STEERING CONTROLLER ................7-M4 5. STEERING CYLINDER................. 7-M6 KiSC issued 04, 2010 A...
Page 419: Structure
STEERING L3540, L4240, L5040, L5240, L5740, WSM 1. STRUCTURE (1) Steering Wheel (3) Hydraulic Pump (5) Steering Controller (7) Steering Joint Shaft 2 (2) Steering Joint Shaft 1 (4) Steering Cylinder (6) Steering Joint Shaft 3 (8) Steering Shaft The full hydrostatic type power steering is used on these tractors. This steering system is composed of steering wheel, steering joint shafts, steering controller, steering cylinder and other components shown in the figure.
Page 420: Hydraulic Circuit
STEERING L3540, L4240, L5040, L5240, L5740, WSM 2. HYDRAULIC CIRCUIT When the engine starts, the hydraulic pump (8) pressure-feeds the oil, drawn from the transmission case (7) through the oil filter (6), to the steering controller (3). The oil which has entered steering controller (3) is directed to control valve (10).
Page 421: Hydraulic Pump
STEERING L3540, L4240, L5040, L5240, L5740, WSM 3. HYDRAULIC PUMP The gear type hydraulic pump is adopted for these tractor. This pump is tandem type and it is composed two pair of gears, side plates, bushings and other components as shown in the figure.
Page 422: Steering Controller
STEERING L3540, L4240, L5040, L5240, L5740, WSM 4. STEERING CONTROLLER Neutral Position When the steering wheel (1) is not being turned, valve plate (2) is held in the neutral position by centering spring. Under this condition, an oil passage is formed...
Page 423 STEERING L3540, L4240, L5040, L5240, L5740, WSM Left Turn The steering system operates in the same way at a left-turn as well, except that oil flows into and out of steering cylinder in the directions opposite to those at a right-turn.
Page 424: Steering Cylinder
STEERING L3540, L4240, L5040, L5240, L5740, WSM 5. STEERING CYLINDER (1) Tie-rod (3) Head Cover (5) Head Cover (7) Internal Snap Ring (2) Piston Rod (4) Cylinder Tube (6) Front Axle Case The steering cylinder is single piston both rod double-acting type. This steering cylinder is installed parallel to the front axle and connected to tie-rods.
Page 425 SERVICING CONTENTS 1. TROUBLESHOOTING ..................7-S1 2. SERVICING SPECIFICATIONS ..............7-S2 3. TIGHTENING TORQUES ................7-S3 4. CHECKING AND ADJUSTING ..............7-S4 [1] STEERING CONTROLLER ..............7-S4 5. DISASSEMBLING AND ASSEMBLING ............7-S5 [1] STEERING CONTROLLER ..............7-S5 [2] STEERING CYLINDER................7-S6 (1) Servicing .....................7-S7 [3] STEERING LINKAGE ................7-S8 KiSC issued 04, 2010 A...
Page 426 STEERING L3540, L4240, L5040, L5240, L5740, WSM 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Tractor Can Not Be Steering controller broken Replace 7-S5 Steered Steering linkage broken Replace 7-S8 Pipe broken Replace – Front Wheels Vibrate Improper toe-in adjustment...
Page 427: Servicing Specifications
STEERING L3540, L4240, L5040, L5240, L5740, WSM 2. SERVICING SPECIFICATIONS STEERING CONTROLLER Item Factory Specification Allowable Limit Relief Valve Setting Pressure Condition L3540, L4240 10.7 to 11.7 MPa – • Engine Speed : Maximum 110 to 119 kgf/cm • Oil Temperature : 40 to 60 °C 1560 to 1690 psi 104 to 140 °F...
Page 428 STEERING L3540, L4240, L5040, L5240, L5740, WSM 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : Refer to “5. TIGHTENING TORQUES” at “G. GENERAL” section.) Item N·m...
Page 429: Checking And Adjusting
STEERING L3540, L4240, L5040, L5240, L5740, WSM 4. CHECKING AND ADJUSTING [1] STEERING CONTROLLER Relief Valve Setting Pressure Test 1. Disconnect the power steering hose LT. 2. Install the power steering tee fitting adaptor to the steering controller and connect the power steering hose LT.
Page 430: Disassembling And Assembling
STEERING L3540, L4240, L5040, L5240, L5740, WSM 5. DISASSEMBLING AND ASSEMBLING [1] STEERING CONTROLLER IMPORTANT • Use only the transmission fluid (Refer to “4. LUBRICANTS, FUEL AND COOLANT” at “G. GENERAL” section.), in no case use mixture of oils of different brands.
Page 431: Steering Cylinder
STEERING L3540, L4240, L5040, L5240, L5740, WSM [2] STEERING CYLINDER Front Wheel, Cylinder Cover and Tie-rod 1. Place a disassembly stand under the engine and support it with a jack. 2. Remove the front wheel and cylinder cover (2). 3. Pull out the cotter pin and remove the tie-rod end slotted nut.
Page 432: Servicing
STEERING L3540, L4240, L5040, L5240, L5740, WSM (1) Servicing Steering Cylinder I.D. 1. Measure the steering cylinder I.D. with a cylinder gauge. 2. If the cylinder I.D. exceed the allowable limit, replace the cylinder tube. 55.000 to 55.074 mm Factory spec.
Page 433: Steering Linkage
STEERING L3540, L4240, L5040, L5240, L5740, WSM [3] STEERING LINKAGE Steering Wheel and Steering Post Covers 1. Remove the steering wheel (1). 2. Remove the steering post covers (2), (3). (When reassembling) 48.1 to 55.9 N·m Steering wheel mounting Tightening torque 4.9 to 5.7 kgf·m...
Page 434 HYDRAULIC SYSTEM KiSC issued 04, 2010 A...
Page 435 MECHANISM CONTENTS 1. STRUCTURE ....................8-M1 [1] MANUAL TRANSMISSION AND GLIDE SHIFT TRANSMISSION..8-M1 [2] HYDROSTATIC TRANSMISSION ............8-M2 2. HYDRAULIC CIRCUIT .................. 8-M3 [1] MANUAL TRANSMISSION..............8-M3 [2] GLIDE SHIFT TRANSMISSION (GST)..........8-M4 [3] HYDROSTATIC TRANSMISSION (HST) ..........8-M5 3.
Page 436: Structure
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 1. STRUCTURE [1] MANUAL TRANSMISSION AND GLIDE SHIFT TRANSMISSION (1) Cylinder Safety Valve (4) Lowering Speed Adjusting (7) Regulator Valve (10) Hydraulic Pump 2 (2) Check Valve Valve (8) Power Steering Controller...
Page 437: Hydrostatic Transmission
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [2] HYDROSTATIC TRANSMISSION (1) Oil Filter (HST) (5) Lowering Speed Adjusting (8) Hydraulic Pump 2 (11) Power Steering Controller (2) Cylinder Safety Valve Valve (9) Hydraulic Pump 1 (12) Relief Valve (3) Check Valve...
Page 438: Hydraulic Circuit
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 2. HYDRAULIC CIRCUIT [1] MANUAL TRANSMISSION (1) Position Control Valve (5) Auxiliary Control Valve (8) Regulating Valve (Refer to (11) Oil Filter (2) Lowering Speed Adjusting (6) Power Steering Controller TRANSMISSION Section)
Page 439: Glide Shift Transmission (Gst)
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [2] GLIDE SHIFT TRANSMISSION (GST) (1) Position Control Valve (5) Auxiliary Control Valve (8) GST Valve Assembly (Refer (12) Hydraulic Pump 1 (2) Hydraulic Cylinder (6) Power Steering Controller to TRANSMISSION Section)
Page 440 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [3] HYDROSTATIC TRANSMISSION (HST) (1) Position Control Valve (5) Auxiliary Control Valve (9) Hydrostatic Transmission (12) PTO Clutch Valve (Refer to (2) Hydraulic Cylinder (6) Power Steering Controller (HST) (Refer to TRANSMISSION Section)
Page 441 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 3. HYDRAULIC PUMP The gear type hydraulic pump is adopted for these tractor. This pump is tandem type and it is composed two pair of gears, side plates, bushings and other components as shown in the figure.
Page 442: Three Point Hitch Hydraulic System
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 4. THREE POINT HITCH HYDRAULIC SYSTEM [1] THREE POINT HITCH HYDRAULIC CIRCUIT (1) Position Control Valve (2) Hydraulic Cylinder (3) Cylinder Safety Valve (4) Lowering Speed Adjusting Valve (5) Auxiliary Control Valve...
Page 443: Rear Hydraulic Block
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [2] REAR HYDRAULIC BLOCK (1) Cylinder Safety Valve (3) Position Control Valve (5) Check Valve A : From Hydraulic Pump (2) Lowering Speed Adjusting (4) Cover (Rear Hydraulic Outlet B : To or From Hydraulic Cylinder...
Page 444: Position Control Valve
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [3] POSITION CONTROL VALVE Neutral Pressurized oil flows at the P port, pushes open unload poppet 1 (4) and returns to tank from T port. The oil in the chamber A behind the unload poppet 1 (4) returns to the tank from T port.
Page 445 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Lifting Neutral (Acting shockless mechanism) In returning from Lifting to Neutral, the spool (1) is pushed back to the arrow-mark direction. When the Neutral position comes near, the groove part D of the spool (1) makes the pressure difference at the P port and port.
Page 446: Position Control Linkage
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [4] POSITION CONTROL LINKAGE Position control is a mechanism to raise or lower the implement attached to the tractor in proportion to the movement of the control lever. The implement can be positioned at any height by moving the position control lever.
Page 447: Lowering Speed Adjusting Valve
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [5] LOWERING SPEED ADJUSTING VALVE Turning the rotor shaft (2) clockwise decreases the lowering speed, counterclockwise increases lowering speed of the three points linkage. When the rotor shaft (2) is completely closed, the three point...
Page 448: Hydraulic Cylinder
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [6] HYDRAULIC CYLINDER The external type hydraulic cylinders are used for three point linkage system. This hydraulic cylinder is single acting type, and it is installed directly between hydraulic lift arm and lower link.
Page 449 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 5. POSITION CONTROL WITH DRAFT CONTROL LINKAGE (IF EQUIPPED) (1) Position Control Lever (5) Top Link Bracket (9) Feedback Rod (13) Return Spring (2) Draft Control Lever (6) Torsion Bar (10) Draft Control Link 2...
Page 450: Position Control Operation
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [1] POSITION CONTROL OPERATION (1) Arm 1 (2) Position Control Link (3) Position Control Lever (4) Return Spring (5) Arm 2 a : Lift b : Down W1016226 (1) Lift (a) 1. When the position control lever (3) is moved to the LIFT side, the position control link (2) is also rotated and pushes the arm 1 (1).
Page 451: Draft Control Operation
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [2] DRAFT CONTROL OPERATION (1) Draft Control Rod (Connected to Top Link Bracket) (2) Draft Control Link 4 (3) Draft Control Link 2 (4) Draft Control Link 1 (5) Arm 1 (6) Draft Control Lever...
Page 452: Mixed Control
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [3] MIXED CONTROL Mixed control is a system combining position control with draft control. When traction load increases, the draft control functions to raise the lift arms (implement). When traction load reduces, the lift arms (implement) lower to...
Page 453: Front Hydraulic Block
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 6. FRONT HYDRAULIC BLOCK (1) Cap A : To Implement Control Valve C : To Position Control Valve : To Transmission Case (2) Front Hydraulic Block B : From Implement Control P : From Hydraulic Pump...
Page 454: Auxiliary Control Valve
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 7. AUXILIARY CONTROL VALVE [1] DOUBLE ACTING TYPE 1 Neutral Pressure-fed oil from the hydraulic pump is delivered into the P port, and flows to the position control valve via N port.
Page 455: Double Acting Type 2 (Floating With Detent)
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [2] DOUBLE ACTING TYPE 2 (FLOATING WITH DETENT) Neutral (1) Spool (2) Check Valve (3) Detent Ball (4) Detent Sleeve A : A Port (Implement Cylinder) B : B Port (Implement Cylinder)
Page 456 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Down (1) Spool (2) Check Valve A : A Port (Implement Cylinder) B : B Port (Implement Cylinder) P : Pump Port N : Neutral Port T : Tank Port W1016237 When the spool (1) is moved in the direction of the arrow, the pressure-fed oil in the P port opens the check valve (2) and flows to the implement cylinder via A port.
Page 457: Single Acting Type
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [3] SINGLE ACTING TYPE Neutral (1) Check Valve (2) Spool A : A Port (Implement Cylinder) P : Pump Port N : Neutral Port T : Tank Port W1022077 Pressure-fed oil from the hydraulic pump is delivered into the P port, and flows to the position control valve via N port.
Page 458 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Down (1) Check Valve (2) Spool A : A Port (Implement Cylinder) P : Pump Port N : Neutral Port T : Tank Port W1022307 When the spool (2) is moved in the direction of the arrow, return oil from the implement cylinder flows from the A port.
Page 459 SERVICING CONTENTS 1. TROUBLESHOOTING ..................8-S1 2. SERVICING SPECIFICATIONS ..............8-S2 3. TIGHTENING TORQUES ................8-S4 4. CHECKING AND ADJUSTING ..............8-S5 [1] HYRAULIC PUMP (FOR POWER STEERING)........8-S5 (1) Pump Test Using Flow-meter .............8-S5 [2] HYDRAULIC PUMP (FOR THREE POINT HITCH)......8-S8 (1) Pump Test Using Flow-meter .............8-S8 [3] RELIEF VALVE ..................8-S11 [4] POSITION CONTROL ROD ..............8-S13 [5] DRAFT CONTROL ROD (IF EQUIPPED) ..........8-S14...
Page 460 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Implement Does Not Control linkage improperly adjusted Adjust 8-S13 Rise (Not Noise) Control linkage improperly assembled or Repair or replace – damaged Position control valve malfunctioning...
Page 461: Servicing Specifications
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 2. SERVICING SPECIFICATIONS HYDRAULIC PUMP Item Factory Specification Allowable Limit Hydraulic Pump for Power Steering Delivery at No Above Condition Pressure 18.6 L/min. – • Engine Speed : L3540, L4240, 4.91 U.S.gals/min.
Page 462 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM HYDRAULIC PUMP (Continued) Item Factory Specification Allowable Limit Housing Bore Depth of Scratch – 0.09 mm 0.0035 in. Bushing to Gear Shaft Clearance 0.020 to 0.081 mm 0.15 mm 0.0008 to 0.0032 in.
Page 463 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : Refer to “5. TIGHTENING TORQUES” at “G. GENERAL” section.) Item N·m...
Page 464: Checking And Adjusting
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 4. CHECKING AND ADJUSTING [1] HYRAULIC PUMP (FOR POWER STEERING) (1) Pump Test Using Flow-meter Preparation 1. Open the bonnet. 2. Remove the side skirt RH. 3. Remove the fuel tank frame support (1), cover (4) and steering joint shaft (2).
Page 465 L3540, L4240, L5040, L5240, L5740, WSM Hydraulic Flow Test (for Power Steering) IMPORTANT • When using a flowmeter other than KUBOTA specified flowmeter, be sure to use the instructions with that flowmeter. • Do not close the flowmeter loading valve completely, before testing, because it has no relief valve.
Page 466 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Hydraulic Flow Test (for Power Steering) (Continued) [L3540, L4240, L5740] Above 18.6 L/min. Hydraulic pump delivery Factory spec. 4.91 U.S.gals/min. at no pressure 4.09 lmp.gals/min. Above 18.2 L/min. Factory spec. 4.81 U.S.gals/min.
Page 467: Hydraulic Pump (For Three Point Hitch)
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [2] HYDRAULIC PUMP (FOR THREE POINT HITCH) (1) Pump Test Using Flow-meter Preparation 1. Open the bonnet. 2. Remove the side skirt RH. 3. Remove the main delivery pipe (1). (When reassembling) •...
Page 468 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Hydraulic Flow Test IMPORTANT • When using a flowmeter other than KUBOTA specified flowmeter, be sure to use the instructions with that flowmeter. • Do not close the flowmeter loading valve completely, before testing, because it has no relief valve.
Page 469 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Hydraulic Flow Test (Continued) [L3540] Above 31.5 L/min. Hydraulic pump delivery Factory spec. 8.32 U.S.gals/min. at no pressure 6.93 Imp.gals/min. Above 30.9 L/min. Factory spec. 8.16 U.S.gals/min. 6.80 Imp.gals/min. Hydraulic pump delivery at rated pressure 27.6 L/min.
Page 470: Relief Valve
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [3] RELIEF VALVE Relief Valve Setting Pressure Test 1. Remove the delivery pipe joint bolt from front hydraulic block. 2. Install the adaptor E. Then connect the cable and pressure gauge to adaptor E.
Page 471 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Safety Valve Setting Pressure Test Using Injection Nozzle Tester 1. Remove the safety valve assembly (1). 2. Attach the safety valve to an injection nozzle tester with a safety valve setting adaptor (refer to “8. SPECIAL TOOLS” at “G.
Page 472: Position Control Rod
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [4] POSITION CONTROL ROD Adjusting Uppermost Position of Lift Arm 1. Set the position control lever (1) to the lowest position. 2. Start the engine, and after warming-up, set the engine speed at the idling.
Page 473: Draft Control Rod (If Equipped)
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [5] DRAFT CONTROL ROD (IF EQUIPPED) Draft Control Feedback Rod Adjustment (If equipped) 1. Attach the test bar (5) to the top link bracket (4). 2. Start the engine and set the speed at maximum.
Page 474 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Checking Draft Control Sensitivity (If equipped) 1. Attach the test bar (2) to the top link bracket. 2. Start the engine, set at maximum speed. 3. Set the draft control lever (4) to the lowest position.
Page 475: Disassembling And Assembling
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 5. DISASSEMBLING AND ASSEMBLING [1] HYDRAULIC PUMP IMPORTANT • The hydraulic pump is precision machined and assembled : if disassemble once, it may be unable to maintain its original performance. Therefore, when the hydraulic pump fails, replacement should be carried out with the hydraulic pump assembled except when emergency repair is unavoidable.
Page 476 HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Power Steering Delivery Pipe and Oil Cooler Return Pipe (HST Models) 1. Disconnect the power steering delivery pipe (2) and oil cooler return pipe (1). (When reassembling) • Install the copper washers firmly.
Page 477: Disassembling Hydraulic Pump
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (2) Disassembling Hydraulic Pump Hydraulic Pump Assembly 1. Remove the pump cover mounting screws (7). 2. Remove the drive gear (6), driven gear (2) and side plate (3) from the casing. (When reassembling) •...
Page 478: Three Point Hitch Hydraulic Block Assembly
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [2] THREE POINT HITCH HYDRAULIC BLOCK ASSEMBLY (1) Separating Hydraulic Block Assembly Seat, Seat Bracket and Cover 1. Remover the seat (1) with cover (2). (1) Seat (2) Cover W1015907 Rear Hydraulic Block 1.
Page 479: Disassembling Hydraulic Assembly
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (2) Disassembling Hydraulic Assembly Lowering Speed Adjusting Valve 1. Draw out the spring pin (4). 2. Remove the holder (5). 3. Draw out the lowering speed adjusting shaft (3), dowel pin (6) and rotor (2).
Page 480: Position Control Valve
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [3] POSITION CONTROL VALVE (1) Separating Control Valve Separating Hydraulic Block Assembly Refer to “4. DISASSEMBLING AND ASSEMBLING” in this section. W1027341 Disassembling Position Control Valve (1) Nut (2) External Snap Ring...
Page 481: Lift Arm Support And Hydraulic Cylinder
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [4] LIFT ARM SUPPORT AND HYDRAULIC CYLINDER (1) Separating Hydraulic Cylinder Top Link, Lift Rod and PTO Cover 1. Remove the top link and PTO cover (2). 2. Disconnect the lift rods (1), (3) from lift arm.
Page 482: Disassembling Hydraulic Cylinder
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (2) Disassembling Hydraulic Cylinder Hydraulic Cylinder 1. Remove the cylinder cover (1). 2. Remove the liquid gasket from top of head (5). 3. Slightly tap-in the head (5) to inside, and remove the internal snap ring (4) by using the small screwdriver.
Page 483: Disassembling Lift Arm Shaft
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (4) Disassembling Lift Arm Shaft Lift Arm and Lift Arm Shaft 1. Remove the external snap ring (5). 2. Remove the lift arm RH (6). 3. Draw out the lift arm shaft (1) and lift arm LH (7) as a unit.
Page 484: Safety Valve
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [5] SAFETY VALVE Disassembling Safety Valve 1. Remove the safety valve assembly (1). 2. Secure the safety valve assembly in a vise. 3. Loosen the lock nut (3), and remove the adjust screw (2).
Page 485: Servicing
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 6. SERVICING [1] LIFT ARM Lift Arm Support Bushing 1. Visually inspect the DX bushings for signs of wear or damage. (The DX bushing tends to show concentrated wear.) 2. If the DX bushing is worn beyond the alloy portion (A), replace it.
Page 486: Hydraulic Cylinder
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [2] HYDRAULIC CYLINDER Hydraulic Cylinder Rod Bushing 1. Visually inspect the DX bushings for signs of wear or damage. (The DX bushing tends to show concentrated wear.) 2. If the DX bushing is worn beyond the alloy portion (A), replace it.
Page 487: Hydraulic Pump
HYDRAULIC SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [3] HYDRAULIC PUMP Clearance between Bushing and Gear Shaft 1. Measure the gear shaft O.D. with an outside micrometer. 2. Measure the bushing I.D. with an inside micrometer or cylinder gauge, and calculate the clearance.
Page 488 ELECTRICAL SYSTEM KiSC issued 04, 2010 A...
Page 489 MECHANISM CONTENTS 1. WIRING DIAGRAM ..................9-M1 [1] ROPS TYPE.................... 9-M1 (1) Manual Transmission Model .............. 9-M1 (2) HST Model ..................9-M2 [2] CABIN TYPE................... 9-M3 (1) Manual Harness for Manual Transmission Model......9-M3 (2) Main Harness for HST Model............. 9-M4 (3) Main Harness for GST Model ............
Page 490: Wiring Diagram
L3540, L4240, L5040, L5240, L5740, WSM ELECTRICAL SYSTEM 1. WIRING DIAGRAM [1] ROPS TYPE (1) Manual Transmission Model Parking Mode Display Switch, Electronic Instrument Panel Brake Front Front Traveling Speed Switch Combination Combination Lamp (LH) Lamp (RH) 20 19 18 17 16 15 14 13 12 11...
Page 491: Hst Model
L3540, L4240, L5040, L5240, L5740, WSM ELECTRICAL SYSTEM (2) HST Model Mode Display Switch, Parking License Traveling Speed Switch Brake Plate Lamp Brake Electronic Instrument Panel Engine Stop Front Front Lamp Beacon Trailer Solenoid Combination Beacon Combination Switch Light Switch...
Page 492: Cabin Type
L3540, L4240, L5040, L5240, L5740, WSM ELECTRICAL SYSTEM [2] CABIN TYPE (1) Main Harness for Manual Transmission Model Brake Lamp Switch Electronic Instrument Panel Trailer Socket Parking Mode Display Switch, Brake Traveling Speed Switch 20 19 18 17 1615 1413 12 11...
Page 493: Main Harness For Hst Model
L3540, L4240, L5040, L5240, L5740, WSM ELECTRICAL SYSTEM (2) Main Harness for HST Model Mode Display Switch, Engine Stop Traveling Speed Switch To Cabin Harness Electronic Instrument Panel Solenoid Engine Stop Trailer Beacon Light Pressure Throttle Cruise Control Relay HST Pedal...
Page 494: Main Harness For Gst Model
L3540, L4240, L5040, L5240, L5740, WSM ELECTRICAL SYSTEM (3) Main Harness for GST Model Mode Display Switch, Proportional Brake Lamp Oil Temperature Traveling Speed Switch Reducing Valve Switch Switch Electronic Instrument Panel Trailer Socket Beacon Light Pressure GST Lever Solenoid...
Page 495: Cabin Harness For All Model
L3540, L4240, L5040, L5240, L5740, WSM ELECTRICAL SYSTEM (4) Cabin Harness for All Model Blower Wiper Motor Compressor Blower A/C Blower Wiper Switch Working Light Wiper Switch Working Light Resister Clutch Relay (Rear) Main Relay Switch (Front) (Front) (Rear) (Rear) 0.5 R/W...
Page 496: Color Of Wiring
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [3] COLOR OF WIRING B ... Black B/Y ..Black / Yellow Or/W ..Orange / White G ..Green Br/B ..Brown / Black P/W .... Pink / White L ... Blue Br/Y ..
Page 497: Electronic Control Panel
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 2. ELECTRONIC CONTROL PANEL [1] SYSTEM OUTLINE AND ELECTRICAL CIRCUIT (1) System Outline (1) Liquid Crystal Display (LCD) (2) Electronic Instrument Panel (IntelliPanel) W1012906 The Electronic Instrument Panel (Intellipanel) adopted in the L40 series tractors consists of an 8-bit CPU , sensors and input devices, memory devices such as RAM and ROM, and others.
Page 498: Control Items
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (2) Control Items For manual transmission model, the electronic instrument panel (IntelliPanel) functions to receive data from sensors and switches, and displays them on the meter. For GST and HST models, the electronic instrument panel also receives data also from the control ECU (Electric Control Unit) through multiplex communication, and displays them on the panel.
Page 499: Construction And Function Of Components
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [2] CONSTRUCTION AND FUNCTION OF COMPONENTS (1) Parking Brake Switch (9) Throttle Sensor (20) Oil Temperature Sensor (30) Fuel Sensor (2) Multi Function Combination (10) Swash Plate Position Sensor (21) Oil Pressure Switch...
Page 500 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Electronic Instrument Panel (IntelliPanel) An 8 bit CPU is incorporated into the electronic instrument panel, and outputs the status of the tractor to the liquid crystal display, monitor lamp, tachometer, and buzzer. The built-in buzzer begins to function in relation with indication of warning / failure and it permits to check the operational state of each part.
Page 501 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Beacon Light Switch Beacon light switch (1) is used to lighting the beacon light. The lamp in this switch is lighted up when this switch is ON. (1) Beacon Light Switch W1019828...
Page 502 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Parking Brake Switch This switch (1) is turned on and off interlocked with the parking brake lever. It is switched on when the parking brake lever is pulled up, thereby sending a signal to light up the pilot lamp at the IntelliPanel.
Page 503 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Coolant Temperature Sensor This sensor (1) is designed to detect the temperature of coolant. It employs a thermistor, and detects the variation in resistance due to a change in temperature to indicate the temperature on the LCD. It also sends a signal to light up the alarm lamp in case of overheat, and indicate an alert message.
Page 504 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Traveling Speed Sensor This sensor (1) is mounted at the right bottom of the transmission case, and generates pulses proportional to the rotating speed and the number of teeth of the front- wheel drive gear on the PTO drive shaft.
Page 505 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Shuttle Switch : for Manual Transmission and GST Model This switch (1) is mounted at the bottom of the shuttle lever shaft (2) and is turned on when the position of F, N,...
Page 506 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM HST Range Gear Shift Lever Sensor : for HST Model This sensor (1) is designed to detect the position at which the HST range gear shift lever changes the speed, and is mounted at the bottom of the lever.
Page 507 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Emergency Connector : for GST Model This is a device which compulsorily operates the shift solenoid when the tractor does not move due to the trouble of the GST system and moves the tractor.
Page 508 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM HST Mode Select Switch The HST mode select switch is used to change HST functions. There are three HST modes. The first one is the same as for the existing HST on which the lamp does not light up on the panel.
Page 509 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Hi-Lo Solenoid Valve The Hi-Lo solenoid valve is located on the left of the HST. The Hi-Lo solenoid is operated by signals from the ECU. The HST motor is changed between Hi and Lo sides by switching the valve.
Page 510: Basic Control System
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [3] BASIC CONTROL SYSTEM (1) Normal Display The normal display is a message indicated in the liquid crystal display (LCD) while the main switch is turned ON or the engine is starting.
Page 511: Attention Display (At Engine Starting)
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (2) Attention Display (At Engine Starting) If neither of the levers or pedals are in neutral positions when the main switch is turned to the “START” position, the engine cannot be started. The electronic instrument panel displays a message for the operator to correct the situation by placing the appropriate lever or pedal in the neutral position.
Page 512 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM HST Model The safety switch for engine starting is adapted for HST pedal, PTO shift lever and clutch pedal in this model. When the HST pedal is not set at a Neutral position Release the HST pedal to set the Neutral Position.
Page 513 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM When the HST pedal is not set at a Neutral position and the clutch pedal is not depressed Release the HST pedal to set Neutral position and depress the clutch pedal. W1018012...
Page 514: Service Interval Alert
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (3) Service Interval Alert The electronic instrument panel display will alert the operator when the scheduled service is required. IMPORTANT • This display, SERVICE INSPECT, informs the operator that periodic maintenance service is due.
Page 515 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Overheating Warning The electronic instrument panel perceive the rise of coolant temperature, and has the function to display the overheat warning on the LCD. When the coolant temperature becomes 125 °C (257 °F) or more, “OVERHEAT”...
Page 516: Lamp Control
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (5) Lamp Control In this electronic instrument panel, the control of various monitor lamps shown in figure are equipped in addition to warning lamps. (1) Rear PTO Lamp If the PTO shift lever is “ON” position, PTO switch is turned on, and monitor lamp will come on.
Page 517: Assistant Control System
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [4] ASSISTANT CONTROL SYSTEM (1) Fail-safe Function If a sensor or solenoid valve of the system gets in trouble during operation, an error message appears in the LCD screen of the electronic instrument panel. The entire system adjusts itself on the safer side and keeps itself from getting into another trouble.
Page 518 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (Error Messages) For All Models ERROR-00 : Electronic meter in trouble For GST and HST Models ERROR-20 : Communication error GST and HST-specified meter wrongly installed on Manual Transmission Model ERROR-30 : ECU in trouble...
Page 519: Testing, Setting And Adjusting Function
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (3) testing, Setting and adjusting Function It can do various settings, adjustments and testing by using the electronic instrument panel. When the main switch is turned to ON or START position while pushing both the display mode switch (2) and the travel speed switch (3), the mode selection display as shown in figure is indicated.
Page 520: Glow Control
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (4) Glow Control The electronic meter incorporates the glow control which was external single parts so for, and controls it with CPU. When the main switch is turned ON, the temperature of the coolant is detected with the coolant temperature sensor, and the time to supply current to the glow plug and the glow indicator lamp is controlled by CPU according to the detected temperature.
Page 521: Engine Starting System And Stopping System
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 3. ENGINE STARTING SYSTEM AND STOPPING SYSTEM [1] MANUAL TRANSMISSION MODEL (1) Battery (4) Key Stop Solenoid (7) Shuttle Switch (10) Glow Plug (2) Main Switch (5) Starter Relay (8) PTO Switch...
Page 522: Gst Model
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [2] GST MODEL (1) Main Switch (4) ECU (7) Starter Relay (9) Meter Panel (2) Shuttle Switch (5) Engine Stop Solenoid Relay (8) Starter (10) Battery (3) PTO Switch (6) Engine Stop Solenoid...
Page 523: Hst Model
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [3] HST MODEL (1) Main Switch (4) Clutch Pedal Switch (7) Starter Relay (10) Engine Stop Solenoid (2) HST Pedal Sensor (5) ECU (8) Starter (11) Battery (3) PTO Switch (6) Meter panel...
Page 524: Related Switches
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [4] RELATED SWITCHES PTO Switch This switch is located under the PTO lever. When the PTO lever is in “OFF” position, this switch is pushed in and electric circuit is closed. (1) PTO Switch...
Page 525 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM ECU (Electrical Control Unit) for GST and HST Model The ECU is located under the floor sheet. (1) ECU W1048721 9-M36 KiSC issued 04, 2010 A...
Page 526: Engine Starting Conditions
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [5] ENGINE STARTING CONDITIONS When the following conditions become complete, electric current (12V) reaches starter AC terminal through operator presence controller from main switch ST terminal, and the engine can be started.
Page 527 SERVICING CONTENTS 1. TROUBLESHOOTING ..................9-S1 2. SERVICING SPECIFICATIONS ..............9-S12 3. TIGHTENING TORQUES ................9-S13 4. CHECKING AND ADJUSTING ..............9-S14 [1] BATTERY....................9-S14 (1) Checking ...................9-S14 [2] ECU AND ELECTRONIC INSTRUMENT PANEL (INTELLIPANEL) .9-S17 (1) ECU ....................9-S17 (2) Electronic Instrument Panel ..............9-S18 [3] TESTING, SETTING ADJUSTING ELECTRONIC...
Page 528 (3) Safety Switch..................9-S54 (4) Starter and Starter Relay..............9-S55 (5) Glow Control System................ 9-S56 (6) Engine Stop Solenoid............... 9-S57 [7] CHARGING SYSTEM ................9-S58 [8] LIGHTING SYSTEM................9-S59 (1) Multi Function Combination Lever (Combination Switch)....9-S59 [9] WARNING LAMPS ................9-S62 (1) Checking ..................
Page 529 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page All Electrical Battery discharged or defective Recharge or replace G-31 Equipment Do Not Battery positive cable disconnected or Repair or replace – Operate improperly connected...
Page 530 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM CHARGING SYSTEM Reference Symptom Probable Cause Solution Page Charging Lamp Does Wiring harness disconnected or improperly Repair or replace – Not Light when Main connected (between main switch terminal and Switch is Turned ON...
Page 531 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM GAUGES Reference Symptom Probable Cause Solution Page Fuel Gauge Does Not Fuel unit (tank unit) defective Replace 9-S65 Function Wiring harness disconnected or improperly Repair or replace – connected (between panel and fuel level sensor)
Page 532 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Error Display for Manual Transmission Model Display on LCD Reference Trouble Item Probable Cause Solution Screen Page Electronic • Electronic instrument • Replace the 9-S18 instrument panel memory device electronic panel memory...
Page 533 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Error Display for GST Model Display on LCD Reference Trouble Item Probable Cause Solution Screen Page Electronic • Electronic instrument • Replace the 9-S18 instrument panel panel memory device electronic instrument memory device...
Page 534 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Error Display for GST Model (Continued) Display on LCD Reference Trouble Item Probable Cause Solution Screen Page Proportional • Output voltage of • Check the connector – reducing valve proportional reducing valve...
Page 535 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Error Display for GST Model (Continued) Display on LCD Reference Trouble Item Probable Cause Solution Screen Page Solenoid 4 • Solenoid output terminal’s • Able to travel at – failure voltage is out of...
Page 536: Error Display For Hst Model
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Error Display for HST Model Display on LCD Reference Trouble Item Probable Cause Solution Screen Page Electronic • Electronic instrument • Replace the 9-S18 instrument panel panel memory device electronic instrument memory device...
Page 537 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Error Display for HST Model (Continued) Display on LCD Reference Trouble Item Probable Cause Solution Screen Page HST pedal • Sensor output terminal is • The running that – sensor failed out of adjustment uses the pedal is •...
Page 538 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Error Display for HST Model (Continued) Display on LCD Reference Trouble Item Probable Cause Solution Screen Page Throttle sensor • Sensor output terminal is • Travel motion is – failed out of adjustment possible.
Page 539 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Error Display for HST Model (Continued) Display on LCD Reference Trouble Item Probable Cause Solution Screen Page • Output voltage of • Travel motion is – proportional proportional valve terminal possible on the...
Page 540: Servicing Specifications
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Approx. 8 to 9 Ω GST Proportional Reducing Valve Resistance – Approx. 11 to 15 Ω Shift Solenoid Valve Resistance – Approx. 0.9 Ω...
Page 541 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : Refer to “5. TIGHTENING TORQUES” at “G. GENERAL” section.) Item N·m...
Page 542: Checking And Adjusting
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 4. CHECKING AND ADJUSTING CAUTION • To avoid accidental short circuit, be sure to attach the positive cable to the positive terminal before the negative cable is attached to the negative terminal.
Page 543: Battery
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Battery Condition Indicator 1. Check the battery condition by reading the indicator (2). State of indicator display Specific gravity of electrolyte and quality of Green electrolyte are both in good condition. Black...
Page 544 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Recharging CAUTION • When the battery is being activated, hydrogen and oxygen gases in the battery are extremely explosive. Keep open sparks and flames away from the battery at all times, especially when charging the battery.
Page 545: Ecu And Electronic Instrument Panel (Intellipanel) .9-S17
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [2] ECU AND ELECTRONIC INSTRUMENT PANEL (INTELLIPANEL) (1) ECU ECU Connector 1. Remover the seat (1) with cover (2). 2. Disconnect the ECU connector (3). NOTE • [HST Model] When replacing the ECU, be sure to adjust the mode “N”...
Page 546: Electronic Instrument Panel
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (2) Electronic Instrument Panel Disconnecting Electronic Instrument Panel Connector 1. Remove the panel cover (1). 2. Disconnect the panel connectors (4), (5). 3. Remove the electronic instrument panel (3) from panel frame (2).
Page 547: Testing, Setting And Adjusting By Electronic Instrument Panel (Intellipanel)
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [3] TESTING, SETTING AND ADJUSTING BY ELECTRONIC INSTRUMENT PANEL (INTELLIPANEL) The following settings, adjustments and testing can be done by using the electronic instrument panel. • Testing : Check a voltage of various sensor or rotation of engine.
Page 548 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Manual Transmission Model Mode Details of Mode Necessary Situation Test Mode • When the checking of sensor voltage or engine revolution is required. • When the IntelliPanel is replaced or changed. Traveling Speed Coefficient Input Mode •...
Page 549: Mode "A" (Test Mode)
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (2) Mode “A” (Test Mode) 1. While holding down the both switches at once, turn the main switch to ON or START position. 2. Select the mode “A”. 3. “T1” is displayed (b).
Page 550 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Availability* Symbol Contents Condition Value (unit) Engine revolution Idling to Max. 700 to Max. (n/min.) −20 → 60 → 100 °C 4.76 to 4.81 → 2.80 to 3.00 Coolant temperature (−4 → 140 → 212 °F) →...
Page 551: Mode "B" (Traveling Speed Coefficient Input Mode) Input The 4 Digit Tire Code For Correct Travel Speed To The Electronic Instrument Panel Memory Panel
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (3) Mode “B” (Traveling Speed Coefficient Input Mode) Input the 4 Digit tire Code for Correct Travel Speed to the Electronic Instrument Panel Memory Panel NOTE • When the tire size is changed or electronic instrument panel is replaced, this operation is required.
Page 552: Mode "D" (Error Information Reset Mode) Delete The Error Information From The Electronic Instrument Panel
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (4) Mode “C” (PTO Coefficient Number Input Mode) Input the Numeric Code Number for PTO Speed into the Electronic Instrument Panel NOTE • When the electronic instrument panel is replaced, this operation is required.
Page 553: Mode "E" (Gst Lever Sensor Fine-Adjustment Mode) Setting The Gst Lever's Neutral Position With Its Sensor
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (6) Mode “E” (GST Lever Sensor Fine-adjustment Mode) Setting the GST Lever's Neutral Position with its Sensor IMPORTANT • As for this fine-adjustment, be sure to set it correctly because the set state becomes the standard of the control thereafter.
Page 554: Mode "F" (Gst Valve Fine-Adjustment Mode) Setting The Function Of Proportional Reducing Valve
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (7) Mode “F” (GST Valve Fine-adjustment Mode) Setting the Function of Proportional Reducing Valve NOTE • When the ECU or GST valve is replaced, this adjustment is required. 1. While holding down the both switches at once, start the engine.
Page 555: Mode "G" (Gst Shift Shock Fine-Adjustment Mode) Adjusting The Clutch Engaging Interval
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (8) Mode “G” (GST Shift Shock Fine-adjustment Mode) Adjusting the Clutch Engaging Interval NOTE • When the sense of shifting shock is not suitable, shifting shock can be changed by this adjustment.
Page 556: Mode "I" (Transmission Model Input Mode) Input The Transmission Model Into Electronic Instrument Panel
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (10) Mode “I” (Transmission Model Input Mode) Input the transmission model into electronic instrument panel NOTE • When the electronic instrument panel is replaced, this operation is required. • On the HST models, the range gear shift lever sensor must be adjusted at the same time.
Page 557: Mode "K
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (12) Mode “K” (HST Pedal, Range Shift Lever, Cruise Control Lever, HST Response Dial, Fine-adjustment Mode) NOTE • When any of ECU, HST pedal sensor, cruise control lever position sensor, swash plate position sensor, range gear shift sensor, HST response dial or proportional valve (Forward, Reverse) is replaced, this adjustment is required.
Page 558 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (Continued) 6. STEP-01 is displayed (d) : Follow the procedures as follows. - Cruise control lever : Set the “Maximum forward position”. - HST response dial : Set the “Maximum fast position”.
Page 559: Mode "L" (Throttle Sensor Fine-Adjustment Mode)
(g) Error Display-1 (c) Setting Display-1 (h) Error Display-2 (d) Adjusting Display-1 (i) Error Display-3 (e) Setting Display-2 W1177367 (14) Mode “M” (Mode for Factory) NOTE • Consult your KUBOTA distributor for this mode. 9-S31 KiSC issued 04, 2010 A...
Page 560: Mode "N" (Tractor Model Select Mode)
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (15) Mode “N” (Tractor Model Select Mode) NOTE • When the ECU is replaced, this adjustment is required. 1. While holding down the both switches at once, turn on main switch. 2. Select mode “N”.
Page 561: Electric Control System
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [4] ELECTRIC CONTROL SYSTEM CAUTION • For checking of electric circuit, use the circuit tester and test function of electronic instrument panel (Refer to “[2] TESTING, SETTING AND ADJUSTING BY ELECTRONIC INSTRUMENT PANEL (INTELLIPANEL) of “4.
Page 562: Check The Fuse And Connector
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (1) Check the Fuse and Connector Replacing Fuse 1. The tractor electrical system is protected from potential damage by fuses. A blown fuse indicates that there is an overload or short somewhere in the electrical system.
Page 563 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Checking Ground Cable 1. Check the whether the ground cable (1) is connected securely to the tractor chassis. 2. If the ground cable is broken or disconnected, replace it. (1) Ground Cable...
Page 564: Checking By Electronic Instrument Panel Connector
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (2) Checking by Electronic Instrument Panel Connector (A) Connector A (20P Connector) of Wire Harness Side Color of wiring Terminal Name – Red / Black Main Switch ON Black / Yellow Shuttle switch (Manual Transmission, GST)
Page 565 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Disconnecting Electronic Instrument Panel Connector 1. Remove the panel cover (1). 2. Disconnect the panel connectors (4), (5). 3. Remove the electronic instrument panel (3) from panel frame (2). (1) Panel Cover...
Page 566: Unit Checking
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (3) Unit Checking Display Mode Switch and Travel Speed Switch 1. Check the resistance between terminal a (3) and c (5) while pushing the display made switch (1). 2. It is OK if 0 ohm is indicated.
Page 567: Ecu Control System (Gst Model And Hst Model)
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [5] ECU CONTROL SYSTEM (GST MODEL AND HST MODEL) (1) Checking Fuse and Connector • Checking fuses, refer to “[4]-(1) Check The Fuse and Connector” in this section. Checking Ground Cable 1. Check the whether the ground cable (1) is connected securely to the tractor chassis.
Page 568: Checking By Electric Control Unit (Ecu)
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (2) Checking by Electric Control Unit (ECU) GST Model Color of wiring Terminal Name Color of wiring Terminal Name Brown / Black Output terminal for 1st shift solenoid Red / Yellow +12 V (power source from main switch)
Page 569 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM HST Model Color of wiring Color of wiring Terminal Name Terminal Name ROPS CABIN ROPS CABIN Red / Black Output terminal for Hi-Lo solenoid Red / Yellow +12 V (power source from main switch)
Page 570 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Connector Voltage (Main Circuit) 1. Turn on the main switch. (Do not start engine.) 2. Measure the voltage between terminal 23 (+) and terminal 29 (–). 3. It is OK if the voltage equals to the battery voltage.
Page 571: Checking Sensor And Switch For Gst Model
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (3) Checking Sensor and Switch for GST Model GST Lever Sensor Resistance 1. Measure the resistance between terminal a (1) and c (3). 2. Then, check resistance between terminal a (1) and b (2) while slowly turning the sensor shaft.
Page 572: Checking Sensor And Switch For Hst Model
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Proportional Reducing Valve Resistance 1. Measure the resistance between the valve terminals. 2. It is OK if the resistance comes to have shown in the table below. NOTE • When replacing the proportional reducing valve be sure to adjust the mode “F”.
Page 573 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM HST Range Gear Shift Lever Sensor Resistance 1. Measure the resistance between terminal a (2) and b (3) while shifting the range gear shift lever. 2. It is OK if the resistance is smoothly changing.
Page 574 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM HST Pedal Sensor, Cruise Lever and Swash Plate Position Sensor 1. Measure the resistance between terminal B (7) and GND (8). 2. Measure the resistance between terminal GND (8) and a while slowly turning the sensor shaft.
Page 575 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Cruise Control Release Switch 1. Disconnect the cruise control release switch connector (2). 2. Measure the resistance between connector terminal as shown in the table below. 3. If the switch is defective, replace it.
Page 576 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM HST Response Control Dial and HST Mode Select Switch HST Response Control Dial 1. Measure the resistance between terminal 1 and 3, referring to the table below. 2. Turning the HST response control dial (2) and the measure the resistance between terminal 1 and 2, referring to the table below.
Page 577 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM HST Proportional Valve (Forward and Reverse) 1. Remove the cover. 2. Disconnect the 2P connector of the proportional valve (1), (2). IMPORTANT • In installing the connector of the proportional valve, pay attention to the color of the connector to ensure correct installation.
Page 578 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Travelling Speed Sensor 1. Check the wire harness in mode “A”. 2. Measure the resistance between terminal of panel or ECU connector and terminal of sensor connector. 3. If 0 ohm is not indicated, the wiring harness is faulty.
Page 579 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Engine Tachometer Sensor 1. Check the wire harness in mode “A”. 2. Measure the resistance between terminal of panel or ECU connector and terminal of sensor connector. 3. If 0 ohm is not indicated, the wiring harness is faulty.
Page 580: Starting System
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [6] STARTING SYSTEM (1) Main Switch (ROPS Type) Remove the Main Switch 1. Remove the panel cover. 2. Disconnect the main switch connector (2). 3. Perform the following checking. (1) Main Switch...
Page 581: Main Switch (Cabin Type)
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (2) Main Switch (CABIN Type) Connector Voltage 1. Measure the voltage across the connector B terminal and chassis. 2. If the voltage differs from the battery voltage (11 to 14 V), the wiring harness is faulty.
Page 582: Safety Switch
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (3) Safety Switch PTO Switch Continuity 1. Disconnect the PTO switch connector. 2. Measure the resistance between connector terminal as shown in table below. 3. If the switch is defective, replace it.
Page 583: Starter And Starter Relay
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (4) Starter and Starter Relay Starter Motor B Terminal Voltage 1. Measure the voltage across the B terminal and chassis. 2. If the voltage differs from the battery voltage, check the battery’s cable.
Page 584: Glow Control System
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (5) Glow Control System Glow Plug Lead Terminal Voltage 1. Disconnect the wiring lead (1) from the glow plug (2) after turning the main switch off. 2. Turn the main switch key to the “PREHEAT” position, and measure the voltage between the lead terminal and the chassis.
Page 585: Engine Stop Solenoid
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM (6) Engine Stop Solenoid Connector Voltage 1. Disconnect the 2P connector from engine stop solenoid. 2. Turn the main switch key to the “ON” position. 3. Measure the voltage between the terminal 1, terminal 2 and body.
Page 586: Charging System
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [7] CHARGING SYSTEM Alternator 1. Disconnect the 2P connector (3) from alternator after turning the main switch OFF. 2. Perform the following checkings. (1) B Terminal (3) 2P Connector (2) Alternator W10181750 Connector Voltage 1.
Page 587: Lighting System
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [8] LIGHTING SYSTEM (1) Multi Function Combination Lever (Combination Switch) Multi Function Combination Lever Switch 1. Remove the steering post cover 1. 2. Disconnect the multi function combination lever switch connector (2).
Page 588 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Hazard Switch and Beacon Switch 1. Remove the meter panel and disconnect the 4P connector from switch after disconnect the battery negative code. 2. Remove the beacon switch (1). 3. Remove the hazard switch (2).
Page 589 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Flasher Unit Actuation Test 1. Set the hazard switch to the ON position, and make sure the hazard light gives 60 to 85 flashes for a minute. 2. With the main switch and the hazard switch at the ON positions, respectively, move the turn signal switch to the left.
Page 590: Warning Lamps
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Brake Lamp Switch Continuity 1. Disconnect the connector, and measure the resistance with an ohmmeter between connector terminal. 2. If the measurement differs from the table below, the brake switch is faulty.
Page 591 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Engine Oil Pressure Switch Continuity 1. Measure the resistance across the switch terminal and the chassis. 2. If 0 ohm is not indicated in the normal state, the switch is faulty. 3. If infinity is not indicated at pressure over 4.9 kPa (0.5 kgf/cm psi), the switch is faulty.
Page 592: Monitor Lamp
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [10] MONITOR LAMP Parking Brake Switch Continuity 1. Disconnect the connector from the parking brake switch (1) after turning the main switch OFF. 2. Measure the resistance across the two terminals. 3. If infinity is not indicated, the switch is faulty.
Page 593: Gauges
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [11] GAUGES (1) Checking Fuel Level Sensor 1) Sensor Continuity 1. Remove the fuel level sensor from the fuel tank. 2. Measure the resistance across the sensor terminal and its body. 3. If the reference value are not indicated, the sensor is faulty.
Page 594: Others
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [12] OTHERS Speed Change Switch Continuity (For Manual Transmission Model) 1. Disconnect the PTO speed change switch connector. 2. Measure the resistance between connector terminal as shown in table below. 3. If the switch is defective, replace it.
Page 595 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Horn Switch 1) Connector for Voltage 1. Remove the battery negative cable. 2. Remove the horn switch (1). 3. Measure the voltage between the 1P terminal (flat share) and 1P terminal (round shape) after connect the battery negative cable.
Page 596: Disassembling And Assembling
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 5. DISASSEMBLING AND ASSEMBLING [1] STARTER Disassembling Motor 1. Disconnect the connecting lead (9) from the magnet switch (8). 2. Remove the screws (6), and then separate the end frame (4), yoke (2) and armature (1).
Page 597: Alternator
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [2] ALTERNATOR Pulley 1. Secure the hexagonal end of the pulley shaft with a double- ended ratchet wrench as shown in the figure, loosen the pulley nut with a socket wrench and remove it.
Page 598 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Rear End Frame 1. Unscrew the two nuts and two screws holding the drive end frame and the rear end frame. 2. Remove the rear end frame (1). (1) Rear End Frame...
Page 599: Servicing
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM 6. SERVICING [1] STARTER Overrunning Clutch 1. Inspect the pinion for wear or damage. 2. If there is any defect, replace the overrunning clutch assembly. 3. Check that the pinion turns freely and smoothly in the overrunning direction and does not slip in the cranking direction.
Page 600 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Brush Wear 1. If the contact face of the brush is dirty or dusty, clean it with emery paper. 2. Measure the brush length (A) with vernier calipers. 3. If the length is less than the allowable limit, replace the yoke assembly and brush holder.
Page 601 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Field Coil 1. Check the continuity across the lead (1) and brush (2) with an ohmmeter. 2. If it does not conduct, replace the yoke assembly. 3. Check the continuity across the brush (2) and yoke (3) with an ohmmeter.
Page 602: Alternator
ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM [2] ALTERNATOR Bearing 1. Check the bearing for smooth rotation. 2. If it does not rotate smoothly, replace it. W10197900 Stator 1. Measure the resistance across each lead of the stator coil with an ohmmeter.
Page 603 ELECTRICAL SYSTEM L3540, L4240, L5040, L5240, L5740, WSM Rectifier 1. Check the continuity across each diode of rectifier with an analog ohmmeter. Conduct the test in the (R × 1) setting. 2. The rectifier is normal if the diode in the rectifier conducts in one direction and does not conduct in the reverse direction.
Page 604 CABIN KiSC issued 04, 2010 A...
Page 605 MECHANISM CONTENTS 1. AIR CONDITIONER SYSTEM ..............10-M1 [1] OUTLINE OF AIR CONDITIONING SYSTEM ........10-M1 [2] SYSTEM CONTROL................10-M3 [3] ELECTRICAL SYSTEM ................ 10-M4 (1) Electrical Circuit ................10-M4 (2) Air Conditioner Relay, Blower Relays and Compressor Relay ..10-M5 KiSC issued 04, 2010 A...
Page 606: Air Conditioner System
CABIN L3540, L4240, L5040, L5240, L5740, WSM 1. AIR CONDITIONER SYSTEM [1] OUTLINE OF AIR CONDITIONING SYSTEM (1) Heater Hose (Out Side) (5) Outside Air Filter (9) Front Air Outlet (13) Condenser (2) Heater Hose (In Side) (6) Inner Roof...
Page 607 CABIN L3540, L4240, L5040, L5240, L5740, WSM The machine is equipped with a thin large-capacity air conditioner with outside air intake. Through the inside air filter (7) as well as the outside air filter (5), the inner roof (6) and reaches the air conditioner unit (16). The air is then cooled and defumidified by this unit.
Page 608: System Control
CABIN L3540, L4240, L5040, L5240, L5740, WSM [2] SYSTEM CONTROL (1) Temperature Control Dial (7) Recirculated Air (12) Air Outlet Door D3 (A) Control Plate (2) Mode Switch (8) Blower (Mode Door) (B) Air Selection Lever (3) Blow Switch (9) Evaporator...
Page 609: Electrical System
CABIN L3540, L4240, L5040, L5240, L5740, WSM [3] ELECTRICAL SYSTEM (1) Electrical Circuit (1) Battery (5) Blower Motor (9) Compressor (12) Mode Motor (2) Slow Blow Fuse (6) Blower Resistor (10) Pressure Switch (13) Temperature Motor (3) Main Switch (7) Blower Switch...
Page 610: Air Conditioner Relay, Blower Relays And Compressor Relay
CABIN L3540, L4240, L5040, L5240, L5740, WSM (2) Air Conditioner Relay, Blower Relays and Compressor Relay Remove the outer roof and the relays are visible at the ceiling rear of the cabin : blower relay (1) and compressor relay (2). When the blower fan is adjusted for the air flow rate, the blower relay (1) is activated by a signal from the fan switch on the control panel.
Page 611 SERVICING CONTENTS 1. TROUBLESHOOTING ..................10-S1 2. SERVICING SPECIFICATIONS ..............10-S5 3. TIGHTENING TORQUES ................10-S6 4. PRECAUTIONS AT REPAIRING REFRIGERANT CYCLE ......10-S7 [1] HANDLING OF SERVICE TOOLS............10-S9 (1) Manifold Gauge Set ................10-S9 (2) Refrigerant Charging Hose .............10-S10 (3) Vacuum Pump Adaptor..............10-S11 (4) Electric Gas Leak Tester..............10-S11 (5) Can Tap Valve ................10-S11 (6) T-joint ....................10-S12 (7) R134a Refrigerant Recovery and Recycling Machine ....10-S12...
Page 612 CABIN L3540, L4240, L5040, L5240, L5740, WSM 1. TROUBLESHOOTING COMPRESSOR Reference Symptom Probable Cause Solution Page Noisy Bearing of compressor worn or damaged Replace 10-S42 (Compressor ON) Belt slipping Adjust or replace G-35 Compressor bracket mounting screws loosen Tighten –...
Page 613 CABIN L3540, L4240, L5040, L5240, L5740, WSM AIR CONDITIONING SYSTEM (Continued) Reference Symptom Probable Cause Solution Page Insufficient Cooling Belt slipping Adjust or replace G-35 (Compressor Does Magnetic clutch defective Repair or replace 10-S22 Not Rotate Properly) Compressor defective Replace...
Page 614 CABIN L3540, L4240, L5040, L5240, L5740, WSM AIR CONDITIONING SYSTEM (Continued) Reference Symptom Probable Cause Solution Page Insufficient Cooling Refrigerant too short Check with manifold 10-S13 (Hi-pressure Level is gauge Too Low) Compressor discharge valve damaged Replace – Compressor gasket damaged Replace –...
Page 615 CABIN L3540, L4240, L5040, L5240, L5740, WSM WINDSHIELD WIPER Reference Symptom Probable Cause Solution Page Windshield Wiper Fuse blown (Short-circuit, burnt component Correct cause and G-45 Does Not Operate inside motor or other part for operation) replace Wiper motor defective (Broken armature, worn...
Page 616: Servicing Specifications
CABIN L3540, L4240, L5040, L5240, L5740, WSM 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Refrigerating Cycle Pressure (LO 0.15 to 0.20 MPa – (Refrigerating Cycle is Normal Operating) Pressure Side) 1.5 to 2.0 kgf/cm 21 to 28 psi Pressure 1.27 to 1.66 MPa...
Page 617: Tightening Torques
CABIN L3540, L4240, L5040, L5240, L5740, WSM 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : Refer to “5. TIGHTENING TORQUES” at “G. GENERAL” section.) Item N·m...
Page 618: Precautions At Repairing Refrigerant Cycle
CABIN L3540, L4240, L5040, L5240, L5740, WSM 4. PRECAUTIONS AT REPAIRING REFRIGERANT CYCLE When checking or repairing the air conditioning system, the following precautions and rules must be observed. And it is of first importance that no other personnel than a well-trained serviceman should be allow to handle the refrigerant.
Page 619 CABIN L3540, L4240, L5040, L5240, L5740, WSM (Refrigerant) R134a Factory L3540 770 to 870 g spec. 1.70 to 1.91 lbs Kinds of refrigerant (Charge amount) L4240 R134a Factory L5240 800 to 900 g spec. L5740 1.77 to 1.98 lbs (Compressor Oil)
Page 620: Handling Of Service Tools
CABIN L3540, L4240, L5040, L5240, L5740, WSM [1] HANDLING OF SERVICE TOOLS (1) Manifold Gauge Set The hand valves on the manifold gauge set are used to open and close the valve. The hand valve inscribed LO is for the low pressure side valve (3) and HI is for the high pressure side valve (4).
Page 621: Refrigerant Charging Hose
CABIN L3540, L4240, L5040, L5240, L5740, WSM (2) Refrigerant Charging Hose The charging hoses are classified into three colors. Each charging hose must be handled as follows : • The air conditioner manufacture recommends that the blue hose (3) is used for the LO pressure side (suction side), the green hose (5) for refrigeration side (center connecting port) and the red hose (4) for HI pressure side (discharged side).
Page 622: Vacuum Pump Adaptor
CABIN L3540, L4240, L5040, L5240, L5740, WSM (3) Vacuum Pump Adaptor Objective of the Vacuum Pump Adaptor 1. After vacuum has been created in the air conditioning cycle, when the vacuum pump is stopped, since there is vacuum in hoses within the gauge manifold, the vacuum pump oil flows back into the charging hose.
Page 623: T-Joint
CABIN L3540, L4240, L5040, L5240, L5740, WSM (6) T-joint T-joint (2) is used to increase efficiency of gas charging using two refrigerant containers (4) at a time. 1. Install two refrigerant container service valves to T-joint (2) sides and connect the charging hose (1) to it.
Page 624: Checking And Charging Refrigerant Cycle
CABIN L3540, L4240, L5040, L5240, L5740, WSM 5. CHECKING AND CHARGING REFRIGERANT CYCLE [1] CHECKING WITH MANIFOLD GAUGE IMPORTANT • The gauge indications described in the following testing are those taken under the same condition, so it should be noted that the gauge readings will differs somewhat with the ambient conditions.
Page 625 CABIN L3540, L4240, L5040, L5240, L5740, WSM Insufficient Refrigerant 1. Symptoms seen in refrigerating cycle - Both LO and HI pressure side (1), (2) pressures too low. LO pressure side (1) : 0.05 to 0.10 MPa (0.5 to 1.0 kgf/cm , 7.1 to 14.2 psi)
Page 626 CABIN L3540, L4240, L5040, L5240, L5740, WSM Air Entered in the Cycle 1. Symptoms seen in refrigerating cycle - Both LO and HI pressure side (1), (2) pressures too high. LO pressure side (1) : 0.20 to 0.35 MPa (2.0 to 3.5 kgf/cm , 28.4 to 49.8 psi)
Page 627 CABIN L3540, L4240, L5040, L5240, L5740, WSM Refrigerant Fails to Circulate 1. Symptoms seen in refrigerating cycle - LO pressure side (1) pressure is vacuum and, HI pressure side (2) is low pressure. LO pressure side (1) : Vacuum HI pressure side (2) : 0.49 to 0.59 MPa (5 to 6 kgf/cm , 71.2 to 85.3 psi)
Page 628: Discharging, Evacuating And Charging
CABIN L3540, L4240, L5040, L5240, L5740, WSM Faulty Compression of Compressor 1. Symptoms seen in refrigerating cycle - LO pressure side (1) : 0.39 to 0.59 MPa (4 to 6 kgf/cm , 56.9 to 85.3 psi) - HI pressure side (2) : 0.69 to 0.98 MPa (7 to 10 kgf/cm , 99.6 to 142.2 psi)
Page 629: Evacuating The System
CABIN L3540, L4240, L5040, L5240, L5740, WSM (2) Evacuating the System Evacuating the System 1. Discharge refrigerant from the system by R134a refrigerant recovery and recycling machine. (Refer to “(1) Discharging the Refrigerant” in this section.) 2. Connect the charging hose (red) (2) to the HI pressure side charging valve and connect the charging hose (blue) (1) to the LO pressure side charging valve.
Page 630: Charging The Refrigerant
CABIN L3540, L4240, L5040, L5240, L5740, WSM (3) Charging the Refrigerant Charging an Empty System (Liquid) This procedure is for charging an empty system through the HI pressure side with the refrigerant in the liquid state. CAUTION • Never run the engine when charging the system through the HI pressure side.
Page 631 CABIN L3540, L4240, L5040, L5240, L5740, WSM Charging an Empty or Partially Charged System (Vapor) This procedure is to charge the system through the LO pressure side with refrigerant in the vapor state. When the refrigerant container is placed right side up, refrigerant will enter the system as a vapor.
Page 632: Checking Charge Refrigerant Amount
CABIN L3540, L4240, L5040, L5240, L5740, WSM (4) Checking Charge Refrigerant Amount After charging the refrigerant, check for amount of charging refrigerant as follows. NOTE • The pressure on the following checking are the gauge indications at ambient temperature 30 °C (86 °F), so it should be noted that the pressure will differ some what with the ambient temperature.
Page 633: Checking, Disassembling And Servicing
CABIN L3540, L4240, L5040, L5240, L5740, WSM 6. CHECKING, DISASSEMBLING AND SERVICING [1] CHECKING AND ADJUSTING (1) Compressor Operation of Magnetic Clutch 1. Turn off the A/C switch after starting the engine. 2. Check whether abrasion or abnormal noise is heard when only the magnetic clutch pulley is running.
Page 634: Control Panel (Blower Switch, A/C Switch, Mode Control Dial And Temperature Control Dial)
CABIN L3540, L4240, L5040, L5240, L5740, WSM (2) Control Panel (Blower Switch, A/C Switch, Mode Control Dial and Temperature Control Dial) Blower Switch Connector Voltage 1. Disconnect the 6P connector (2) from blower switch. 2. Turn the main switch to “ON” position.
Page 635 CABIN L3540, L4240, L5040, L5240, L5740, WSM Connector Voltage 1. Disconnect the 16P connector (2) from control panel switch. 2. Turn the main switch to “ON” position. 3. Measure the voltage with a voltmeter across the terminal o and terminal a.
Page 636: Blower Resistor
CABIN L3540, L4240, L5040, L5240, L5740, WSM Temperature Control Dial Checking 1. Turn the temperature control dial counterclockwise till it stops (at “COOL” position). 2. Measure the voltage with a voltmeter across the terminal b and terminal d. Make the following measurement with the terminals connected.
Page 637: Blower Motor
CABIN L3540, L4240, L5040, L5240, L5740, WSM (4) Blower Motor Blower Motor Test 1. Turn the blower motor (1) by hand and check whether it turns smoothly. 2. Disconnect the 2P connector (2) of blower motor (1). 3. Connect a jumper lead from battery (3) positive terminal to connector terminal b.
Page 638: Mode Motor
CABIN L3540, L4240, L5040, L5240, L5740, WSM (6) Mode Motor Mode Motor Checking 1. Confirm whether the mode switch (2) is defective. (Refer to “(4) Control Panel” in this section.) 2. Turn the main switch to “ON” position. 3. Turn the blower switch at 1 position.
Page 639: Pressure Switch
CABIN L3540, L4240, L5040, L5240, L5740, WSM (8) Pressure Switch Pressure Switch 1) HI Pressure Side 1. Connect the manifold gauge (5) to compressor as following procedure. Close the HI and LO pressure valves (3), (4) of manifold gauge tightly, and connect the charging hoses (2), (1) (red and blue) to the respective compressor service valves.
Page 640: Front Wiper Switch
CABIN L3540, L4240, L5040, L5240, L5740, WSM (9) Front Wiper Switch Front Wiper Switch 1. Remove the outer roof, and disconnect the front wiper switch connector. 2. Perform the following checkings 1) and 2). (1) Front Wiper Switch W1021780 1) Connector Voltage 1.
Page 641: Front Wiper Motor
CABIN L3540, L4240, L5040, L5240, L5740, WSM (10) Front Wiper Motor Front Wiper Motor 1. Raise up the front wiper arm (2). 2. Turn the main switch to “ON” position. 3. Push the front wiper switch to “ON” position. 4. Count the number of wiper arm rocking per minutes.
Page 642 CABIN L3540, L4240, L5040, L5240, L5740, WSM Rear Wiper Motor 1. Raise up the rear wiper arm (1). 2. Turn the main switch ON. 3. Push the rear wiper switch to ON position. 4. Count the number of wiper arm rocking per minutes.
Page 643: Disassembling And Assembling
CABIN L3540, L4240, L5040, L5240, L5740, WSM [2] DISASSEMBLING AND ASSEMBLING (1) Separating Cabin from Tractor NOTE • Without discharging the refrigerant from system Draining Coolant CAUTION • Do not remove the radiator cap when the engine is hot. Then loosen cap slightly to the stop to relieve any excess pressure before removing cap completely.
Page 644 CABIN L3540, L4240, L5040, L5240, L5740, WSM Battery, Front Grille, Skirt and Bonnet 1. Open the bonnet and disconnect the battery negative cable. 2. Disconnect the head light connector and remove the front grille (4). 3. Remove the left and right side skirts (3).
Page 645 CABIN L3540, L4240, L5040, L5240, L5740, WSM Clutch Rod, Brake Pedal Rod and Electric Wiring 1. Disconnect the brake pedal rod (6) and clutch rod (4). 2. Disconnect the wiring connectors for alternator (1), coolant temperature sensor (9), oil pressure switch (2), fuel unit (3), starter motor (7), horn and battery.
Page 646 CABIN L3540, L4240, L5040, L5240, L5740, WSM Seat, Seat Bracket and Lever Grips 1. Remove the seat (1) with seat bracket (2). 2. Remove the front wheel drive lever (3). (Manual Transmission Model) 3. Remove the lever grip for range gear shift lever (5), creep shift lever (6), main shift lever (4).
Page 647 CABIN L3540, L4240, L5040, L5240, L5740, WSM Differential Lock Rod, Lowering Speed Adjusting Knob and PTO Speed Change Lever (if equipped) 1. Disconnect the differential lock rod (2). (Reference) • As for location of differential lock rod (2), it is at right side for manual transmission and GST model, and left side for HST model.
Page 648 CABIN L3540, L4240, L5040, L5240, L5740, WSM Steps and Wiring Harness 1. Remove the step LH (2) and solenoid cover (1). 2. Disconnect the ground cable (3). 3. Disconnect the solenoid valve connector (4). 4. Remove the step RH (6) and proportional valve cover (5).
Page 649 CABIN L3540, L4240, L5040, L5240, L5740, WSM Parking Brake Cable 1. Disconnect the parking brake cable (1). (When reassembling) • Be sure to check and adjust the parking brake lever free play (Refer to "7-[4] CHECK POINTS OF EVERY 100 HOURS" at "G.
Page 650 CABIN L3540, L4240, L5040, L5240, L5740, WSM PTO Wire and Wiring Harness 1. Disconnect the PTO wire (1). 2. Disconnect the speed sensor connector (2). 3. Remove the lever guide (3). (When reassembling) • When connecting the PTO wire (1) to the clutch valve lever, be sure to adjust the length of wire as follows.
Page 651 CABIN L3540, L4240, L5040, L5240, L5740, WSM Mats, Panel Cover and Linkage 1. Remove the steering post covers 1 (2) and the steering post cover 2 (3). 2. Remove the panel cover (1). 3. Remove the mats (4). 4. Remove the brake rods (7) and clutch rod (5).
Page 652 CABIN L3540, L4240, L5040, L5240, L5740, WSM Air Conditioner Parts and Cabin Assembly 1. Remove the radiator upper hose (1) and recovery tank hose (2). 2. Remove the intake hose (3). 3. Remove the battery (8). 4. Remove the radiator lower hose (11).
Page 653: Removing Compressor Assembly
CABIN L3540, L4240, L5040, L5240, L5740, WSM (2) Removing Compressor Assembly Compressor Assembly 1. Discharge the refrigerant from the system. (Refer to “(1) Discharging the Refrigerant” in this section.) 2. Disconnect the low pressure pipe (suction) (1) and high pressure pipe (discharge) (5) from the compressor, then cap the open fitting immediately to keep moisture out of the system.
Page 654 CABIN L3540, L4240, L5040, L5240, L5740, WSM Hub Plate 1. Three stopper bolts (1) are set in stopper magnet clutch (2) at the position corresponding to the shape of compressor. (Refer to “8. SPECIAL TOOLS” at “G. GENERAL” section.) 2. The stopper magnet clutch (2) is hung on hub plate (3) and it is fixed that the compressor rotates.
Page 655: Removing Air Conditioner Unit
CABIN L3540, L4240, L5040, L5240, L5740, WSM Stator 1. Remove the lead wire from compressor body. 2. Remove the external circlip (1). 3. Remove the stator (2). (When reassembling) • Do not use the circlip again. • Assemble the circlip for the tapered side to become outside of front housing.
Page 656 CABIN L3540, L4240, L5040, L5240, L5740, WSM Outer Roof and Stay 1. Remove the outer roof (1). 2. Disconnect the ground cable (2). 3. Remove the stay (3). (1) Outer Roof (3) Stay (2) Ground cable W1045533 Wiring Harness 1. Disconnect the temperature motor connector (1), and thermostat connectors (2).
Page 657 CABIN L3540, L4240, L5040, L5240, L5740, WSM Water Cable, Temperature Motor and Mode Motor 1. Disconnect the water cable (1). 2. Remove the motor screws (2). (1) Water Cable L : 6 mm (0.2 in.) (2) Motor Screw W1046003 Air Conditioning Unit 1.
Page 658: Removing Air Conditioner Pipes
CABIN L3540, L4240, L5040, L5240, L5740, WSM (4) Removing Air Conditioner Pipes Discharging Refrigerant Gas Refer to “(1) Discharging the Refrigerant” in this section. W1047168 Battery, Front Grille, Skirt and Bonnet 1. Open the bonnet and disconnect the battery negative cable.
Page 659 CABIN L3540, L4240, L5040, L5240, L5740, WSM High Pressure and Low Pressure Pipes 1. Remove the outer roof. 2. Disconnect the high pressure pipe 2 (2), then cap the open fitting immediately to keep moisture out of the system. 3. Remove the rubber and disconnect the low pressure pipe (1), then cap the open fittings immediately to keep moisture out of the system.
Page 660: Removing Heater Hoses
CABIN L3540, L4240, L5040, L5240, L5740, WSM (5) Removing Heater Hoses Battery, Front Grille, Skirt and Bonnet Refer to “[2] DISASSEMBLING AND ASSEMBLING” in this section. W1053603 Draining Coolant Refer to “[2] DISASSEMBLING AND ASSEMBLING” in this section. W1068340 Battery, Front Grille, Skirt and Bonnet 1.
Page 661 CABIN L3540, L4240, L5040, L5240, L5740, WSM Heater Hoses 1. Remove the outer roof. NOTE • Before disconnecting the heater hoses (2), put the parting marks on the hoses for marking proper reconnecting. 2. Disconnect the heater hoses (2) from the hose pipes (1).
Page 662: Cabin Windshields
• Sika product are made by Sika Corporation. • Shin Etsu silicon KE420 is made by Shin Etsu Polymer Corporation. • These materials can’t be provided by Kubota Corporation. • Therefore, please find the local made equivalent materials in your country and use them when you need.
Page 663 CABIN L3540, L4240, L5040, L5240, L5740, WSM Before Replacing Windshields (3) 1. Check that the glasses are not damaged and cracked. 2. Turn over the glass and clean this surface of the glass by Sika- Activator. 3. The cleaning area of the rear surface is indicated “A” in the figure left.
Page 664 CABIN L3540, L4240, L5040, L5240, L5740, WSM Front Windshield NOTE • Apply the Sika Tack-Ultrafast (or equivalent) with the jig having the specified tip shape as shown in the figure left. • Apply it with a uniform speed to minimize unevenness.
Page 665: Wiper Motor
CABIN L3540, L4240, L5040, L5240, L5740, WSM (7) Wiper Motor Front Wiper Motor 1. Remove the steering post covers (2) and steering post under cover. 2. Remove the meter panel (1). 3. Disconnect the front wiper motor 4P connector. 4. Remove the wiper arm mounting nut (5) and wiper arm (6).
Page 666 EDITOR : KUBOTA FARM & INDUSTRIAL MACHINERY SERVICE, LTD. 64, ISHIZU-KITAMACHI, SAKAI-KU, SAKAI-CITY, OSAKA, 590-0823, JAPAN PHONE : ( 81 ) 72-241-1129 : ( 81 ) 72-245-2484 E-mail : ksos-pub@kubota.co.jp Printed in Japan 2010. 04, S, E I , E I , e Code No.9Y111-01023 KUBOTA Corporation 2007.

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L4240 L5040 L5240 L5740

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