Walker T25i Operator's Manual
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Walker T25i Operator's Manual

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Operator's Manual
Safety, Assembly, Operating, and Maintenance Instructions
Please Read and Save These Instructions
For Safety, Read All Safety and Operation
Instructions Prior to Operating Machine
Beginning S/N: 125598
Effective Date: 11.20.13
P/N 8000-17

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  • Page 1 Operator’s Manual Safety, Assembly, Operating, and Maintenance Instructions Please Read and Save These Instructions Beginning S/N: 125598 For Safety, Read All Safety and Operation Effective Date: 11.20.13 Instructions Prior to Operating Machine P/N 8000-17...
  • Page 2 Foreword Thank you. . .for purchasing a Walker mower. Every effort has been made to provide you with the most reliable mower on the market, and we are sure you will be among our many satisfied custom- ers. If for any reason this product does not perform to your expectations, please contact your local dealer.

  • Page 3: Table Of Contents

    Table of Contents Operating Instructions General Information ________________ 1 _____________ 27 HIGHLIGHTED INFORMATION _____________ 1 CONTROL IDENTIFICATION, GLOSSARY ____________________________ 1 LOCATION, AND FUNCTION _____________ 27 IDENTIFYING NUMBER LOCATIONS ________ 1 Operating Controls ____________________ 27 ENGINE SERIAL NUMBER LOCATION _______ 2 Engine Throttle ______________________ 27 SERVICING OF ENGINE AND Forward Speed Control (FSC) __________ 28...
  • Page 4 Table of Contents Maintenance Instructions CHECKING/SERVICING __________________ 66 __________ 51 Security of Air Filtration Components ____ 66 MAINTENANCE SCHEDULE CHART _______ 51 Battery ______________________________ 67 IMPORTANT TIPS FOR CARE Electrolyte Level _____________________ 67 OF THE KOHLER ENGINE ________________ 52 Cleaning the Terminals ________________ 67 Fuel System _________________________ 52 Charging the Battery __________________ 67 Starting/Stopping _____________________ 52...

  • Page 5: General Information

    POWER TAKE-OFF (PTO) transmits engine eral general practices to be aware of in the area of power to run the cutter blades and GHS blower. safety. Most accidents associated with the opera- tion or maintenance of a Walker Mower are caused • ® POWERFIL...

  • Page 6: Engine Serial Number Location

    If you have any difficulty finding an authorized outlet or obtaining warranty service, please contact our Service Department for assis- Tractor Serial Number Location tance: Walker Manufacturing Company Serial Number 5925 E. Harmony Road Fort Collins, CO 80528 1-970-221-5614 www.walkermowers.com...

  • Page 7: Specifications

    4.7 (17.79) Fuel Regular Grade Unleaded Gasoline (87 Octane or Greater, 10% Ethanol Maximum) Air Cleaner Remote mounted Donaldson Radialseal (Walker P/N 5090-1 Primary/5090-3 Safety Filter) ELECTRICAL SYSTEM Battery 12 Volt, 35AH, 340 CCA Charging System Flywheel Alternator Charging Output...

  • Page 8: Blade Drive

    Deck Caster Wheel 20 (137) Drive 15 (103) Rear 20 (137) DRIVE BELTS Engine PTO Walker P/N 8230 Jackshaft Drive Walker P/N 6250-1 Ground Drive, Micro-V Walker P/N 7248 Blower (GHS Model) Walker P/N 7234-2 Contour-Molded, with Nylon Backed Vinyl Cover and...

  • Page 9: Mower Deck

    Specifications MODEL T25i GHS SYSTEM (continued) Max. Blower RPM 4000 Hi-Dump Option 200 (91) Max. Lift Capacity lb (kg) Grass Catcher Capacity gal / bu / L 80 / 10 / 352 Oscillating Vane Switch ® Full Signal (Grass-Pak Switch)

  • Page 10: Component Identification

    Component Identification NOTE: Control Identification shown in Operating Instructions section. Turbine Grass Handling System Precleaner 10.0 Bushel Catcher Tilt-Up Latch Spring Clip Transmission Control Rod Adjustment Nut (LH) Deck Support Pins Anti-Scuff and Height Adjustment Roller Hitch Pins Catcher Lift / Dump Handle Fuel Tank and Cap...
  • Page 11 Component Identification Removable Grass Catcher Screen (Not Visible) Catcher Door Gas Spring Catcher Door Catcher Lift / Dump Handle Instrument Panel Guard Dump Instrument Panel Box Plate (Shock Mounted) Anti-Scuff Catcher Roller Door Handle Tailpipe Muffler Left Hand Drive Wheel Filter Oil Drain Plug...
  • Page 12 Component Identification Fuel Fuel Module Donaldson Air Cleaner Filter (Not Visible) Oil Fill Air Cleaner Oil Cooler Cover Muffler Grass Air Intake Hose Shield Throttle and Choke Linkage Fuel Pickup Line Muffler Heat Shield Air Filter Restriction Gauge Oil Dipstick Fuel Tank Rubber Bumper (Catcher Support)

  • Page 13: Safety Instructions

    Manufacturing must take full responsibility for safety. comply with safety instructions may result in personal injury. The Walker Rider Lawnmower has been designed with many safety features to protect the operator from The seriousness or degree of importance of each personal harm or injury.
  • Page 14 Safety Instructions - Before Operating 6. Do not wear loose fitting clothing that could get 11. Never attempt to make any adjustments caught in moving parts. Do not operate this ma- while the engine is running, except where specifically instructed to do so. chine while wearing shorts;...

  • Page 15: Operating

    Safety Instructions - Operating Operate the mower only in daylight or in Do not operate machine if the operator pres- good artificial light with good visibility of the area ence safety switch system is not working. being mowed. Verify proper operation by having the operator lift off the seat with the engine running and mov- Sit on the seat when starting the engine and ing two controls, one at a time;...
  • Page 16 Safety Instructions - Operating 14. The maximum recommended slope operat- 20. In case of a clogged or plugged mower deck or GHS catching system: ing angle is 15 degrees or 26% grade. When operating the machine on a slope, reduce speed Disengage the blade clutch (PTO) and turn and use caution to start, stop, and maneuver.

  • Page 17: Maintenance

    Safety Instructions - Maintenance To prevent accidental starting of the engine 11. Use care when charging the battery or per- when servicing or adjusting the machine, re- forming maintenance on the battery and electri- move the key from the ignition switch and dis- cal system: connect the spark plug wires.

  • Page 18: Safety, Control

    Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS Safety, Control, and Instruction Decals are installed on the machine; if any are missing, illegible, or damaged, a replacement should be ordered and installed before putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual. 8600-4 Location: Adjacent to Blower Discharge Chute through Body...
  • Page 19 Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS Safety, Control, and Instruction Decals are installed on the machine; if any are missing, illegible, or damaged, a replacement should be ordered and installed before putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual. 8600-28 Location: Each End of Mower Deck Location: Precleaner Tube...
  • Page 20 Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS Safety, Control, and Instruction Decals are installed on the machine; if any are missing, illegible, or damaged, a replacement should be ordered and installed before putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual. Location: Hydrostat Oil Reservoir 8600-23 Location: Right Side, Behind Operator Seat...
  • Page 21 Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS Safety, Control, and Instruction Decals are installed on the machine; if any are missing, illegible, or damaged, a replacement should be ordered and installed before putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual. 60 lb·ft (81 N·m) 8600-9 Location: Gearbox Cover...

  • Page 22: Assembly Instructions

    Raise front mower body up for battery access (refer to Front Body Latch Release in Operating Instruc­ tions). Check the battery for electrolyte level and Walker Mowers are shipped partially assembled to our distribution network, and are typically assem- charge. The electrolyte level should be at the bot- tom of the vent wells [1/4 to 1/2 in.

  • Page 23: Dry Battery Service

    Assembly Instructions Dry Battery Service Battery Charging DANGER DANGER Activating a battery can be dangerous. BATTERIES PRODUCE EXPLOSIVE GASES The battery should be taken to a reliable • service station, battery store, or power Charge the battery in a well-ventilated equipment dealer where a trained techni- area, so that gases produced while charg- cian can activate the battery safely.

  • Page 24: Battery Installation

    Assembly Instructions Battery Installation Mower Deck Assembly IMPORTANT: Make sure battery is securely Deck Caster Wheels Installation mounted in the frame. A loose battery may cause Remove the bolt, nut, axle spacer tube, and damage to the case resulting in acid leakage and spacer washers from each deck caster wheel severe damage to the machine.

  • Page 25: Deck Discharge Chute Installation

    Assembly Instructions Deck Discharge Chute Installation (GHS Rear Discharge Models Only) Attach Shield Mount the discharge chute hinge on top of the deck discharge opening using the 1/4-20 x 1/2 in. socket button head screw and 1/4-20 ESNA nut. Position the screw with the head inside of the chute and the nut on the outside.

  • Page 26: Mower Deck Installation On Tractor

    Assembly Instructions Mower Deck Installation on Tractor Grease Deck Support Arms Deck Installation Lightly grease each deck support arm (2) on the tractor. Refer to Mower Deck Installation PTO Connection photo for location of deck support arm. Engage the deck carrier frame tube sockets on the tractor support arms (refer to Discharge Chute and PTO Shaft Guard Installation photo for socket location), slide the deck onto...
  • Page 27 Assembly Instructions Internal Balls Spring Tension Adjustment PTO Drive Nut Located Under Lower Locked on Shaft Shaft Spring Hook (Not Visible) Counterweight Springs Hitch Pins Clip Onto Body With PTO Coupler Coupler Ring in Lock Deck On Forward Body Tilted Up U-Joint Locked Position Support Arms...

  • Page 28: Deck Leveling

    Assembly Instructions Deck Leveling Check the side-to-side level. Rotate each blade sideways and measure the distance Position mower on a smooth, level surface. Set from blade tip to ground on each side. If mea- the cutting height to the highest position - 4 in. surements vary more than 1/8 in.

  • Page 29: Preoperating Checklist

    Assembly Instructions PREOPERATING CHECKLIST CHECK ENGINE CRANKCASE OIL LEVEL Before operating the mower for the first time, and as Check the engine crankcase oil level before use and a routine before daily operations, it is important to after each 8 hours of continuous operation. Refer make sure the mower is properly prepared and to LUBRICATION for Checking Engine Crankcase Oil Level in Maintenance Instructions.
  • Page 30 Assembly Instructions CHECK HYDROSTATIC TRANSMISSION OIL Tilt-Up Hook and LEVEL Latch Connected Refer to LUBRICATION for Checking Hydrostatic Transmission Fluid Level in Maintenance Instruc­ tions. Tilt-Up CHECK FUNCTIONS OF INSTRUMENT PAN- Latch EL AND WARNING HORN Tilt-Up Turn the ignition key to the RUN position. Voltmeter, Hook Oil Pressure Light, and Warning Horn should all op- erate, indicating normal function.

  • Page 31: Operating Instructions

    Operating Instructions CONTROL IDENTIFICATION, LOCATION, AND Engine Throttle FUNCTION The throttle control lever (red knob) is located on the left side of the seat and is used to control engine Operating Controls speed. Moving the lever forward toward the FAST position increases engine speed;...

  • Page 32: Forward Speed Control (Fsc)

    Operating Instructions Forward Speed Control (FSC) Parking Brake Forward Speed Control (FSC) has two functions: The parking brake functions by locking a pin into the One is to set forward travel speed, and the other is hydrostatic transmission pinion gear teeth. Moving to establish the NEUTRAL-PARK position.
  • Page 33 Operating Instructions The Forward Speed Control also Establishes the Neutral-Park Position of the Steering Levers FORWARD SPEED RIGHT WHEEL CONTROL LEVER (FSC) STEERING LEVER LEFT WHEEL STEERING LEVER Forward Position Full Forward (No Control Change) Ground Speed Position Neutral-Park Position Intermediate Ground Speed Position...

  • Page 34: Front Body Latch Release

    Operating Instructions Front Body Latch Release Transmission Lockout Levers The front portion of the tractor body hinges forward The transmission lockout levers disengage the hy- drostatic transmissions. By lifting the lever on top for maintenance access and is latched down in the OPERATING position.

  • Page 35: Instrument Panel

    This reminder is only used one time. *** In normal operating conditions, oil changes in 100-hour intervals are acceptable. Walker and the engine manufacturers recommend engine oil changes every 50 hours in extremely dirty or dusty conditions or for units with less than 100 hours annual use.

  • Page 36: Voltmeter

    Operating Instructions NOTE: The blinking hour glass on the display Over Temperature Warning Light means that the meter is operating properly. The over temperature warning light indicates that the engine cylinder head temperature is above the safe operating limit (450° F or 232° C) and the en- gine is overheating.

  • Page 37: Ignition Switch

    Operating Instructions Ignition Switch Circuit Breaker The ignition switch is used to start and stop the en- One manual reset circuit breaker is located on the gine. The switch has three positions: “O” is the OFF instrument panel. A button pops out if the circuit position, RUN is the position the key returns to after breaker trips.

  • Page 38: Adjusting Ground Speed And Steering

    In case the transmission drive belt breaks damage the starter motor and shorten battery during operation, and if the machine is on life. Consult your Walker dealer or authorized a slope, the machine will freewheel down Kohler dealer for additional help.
  • Page 39 Control setting until familiar with all operat- ing characteristics. ♦ Remember it is not necessary to hold the steering levers forward (a unique Walker feature); always PULL on the levers for Forward Speed Control steering or for reverse motion of the mower.

  • Page 40: Engaging The Blade Drive

    Make sure that the adjusted. Contact your Walker dealer. blade timing has not been dis turbed (the blades should be at 90 degrees to each ENGAGING THE BLADE DRIVE other).

  • Page 41: Stopping The Machine

    If the brake sys- stop and park the machine. tem malfunctions and the blades do not stop within five (5) seconds, the brake should be adjusted or repaired before op- erating the mower. Contact your Walker dealer.

  • Page 42: Adjusting Cutting Height

    Operating Instructions ADJUSTING CUTTING HEIGHT The mower will “freewheel” with the levers in the LOCKOUT position. The levers must be in the highest position to completely unlock the trans- WARNING missions. The engine must be stopped before ad- Lockout Lever justing cutting height.

  • Page 43: Recommendations For Mowing

    Operating Instructions • RECOMMENDATIONS FOR MOWING When mowing, operate the engine at full throttle for the best cutting action and performance of the grass handling system (GHS). Mowing with a lower DANGER engine RPM causes the mowing blade to not cut clean and tear the grass.
  • Page 44 Operating Instructions • When using a side discharge mower deck, the side discharge deflector shield must not be Maximum Recommended Slope - Do Not Operate removed and must be kept in the lowest possible on Steep Slopes position to deflect grass clippings and thrown objects down ward.

  • Page 45: Recommendations For Tilt-Up Deck Operation/Transport

    Operating Instructions RECOMMENDATIONS FOR TILT-UP DECK OPERATION/TRANSPORT To avoid potential deck and/or tractor damage while using the tilt-up deck, the following recommenda- tions are offered: • Do not move the tractor with the deck in the tilt- up position since both the roller wheels (on the back of the deck) and the GHS discharge chute may be damaged by moving the tractor.

  • Page 46: Grass Handling System (Ghs)

    Operating Instructions GRASS HANDLING SYSTEM (GHS) GHS Model Only ® Grass-Pak Exhaust Screen Vane Switch (Removable) Powerfil ® Catcher Delivery Spout Door Spring Powerfil ® Drive Motor Actuator “Full” Signal Horn Catcher Door PTO Clutch Shear Pin PTO and Blade Gear Drive Grass Catcher Shear...

  • Page 47: General Information

    Operating Instructions General Information NOTE: When a side discharge or mulching mow er deck is installed on the GHS model, a blower intake The Grass Handling System (GHS) consists of a cover should be installed in the blower intake tube. rear discharge mower deck connected to a 10.5 in.

  • Page 48: Clogging Checklist

    Operating Instructions • Check the amount of flat section remaining at Clogging Checklist blade tip. This is the area that is ground away (re- In case of clogging, there will be a distinct change moved) when the blades are sharpened. If too much in the sound of the blower, i.e., the blower sound of the flat section is removed, the “air lift”...

  • Page 49: Using The Tilt-Up Deck

    Operating Instructions • Check that the openings in the removable air WARNING exhaust screen in the grass catcher are not plugged. If the screen is clogged, refer to Cleaning ® DO NOT test the Grass-Pak switch with the GHS Exhaust Screen in this section. the engine running.

  • Page 50: Dumping The Catcher

    Operating Instructions Dumping the Catcher Using the Dump Bag Open the back door by lifting on the door handle. DANGER Orient the dump bag with one (or two) of the handle straps on the bag opening facing up. Do not mow or dump grass within 5 feet (1.5 meters) of an embankment or retaining Tailgate Door wall with drop off.

  • Page 51: Power Dump Option

    Operating Instructions Power Dump Option When equipped with the optional power dump sys- tem, the operator dumps the catcher while sitting in the seat. A toggle switch operating a power ram is used to raise and lower the catcher. The back door automatically opens and closes during the dump cycle.

  • Page 52: Hi-Dump ® Option

    Operating Instructions ® Hi-Dump Option CAUTION ® When equipped with the optional Hi-Dump system, the operator raises and dumps the catcher while sit- The operator should be in the seat with the ting in the seat. Two toggle switches operate inde- machine in the NEUTRAL-PARK Position pendent hydraulic cylinders to raise and lower the and the parking brake engaged and by-...
  • Page 53 Operating Instructions Catcher Door Upper Catcher Door Gas Spring Grass Catcher Cable Guide Lift Channel Power Dump Ram Actuator Lower Fork Door Arm Actuator Cable Assembly Spring Actuator Mount Assembly Dog Leg Assembly Rubber Bumper Power Dump Components...
  • Page 54 Operating Instructions Catcher Door Upper Catcher Door Grass Catcher Gas Spring Cable Guide Lift Channel Gas Spring Assembly Lower Door Arm Actuator Cable Assembly Catcher Pivot Arm Control Lift Rod Dump Cylinder Hydraulic Control Valves Hydraulic Lift Rod Valve Box Reservoir/Power Unit Safety...

  • Page 55: Maintenance Instructions

    Change engine oil and filter after first 5 hours of operation of a new engine (break-in period) ΔΔ Change every 2 years or 1000 hours ΔΔΔ See your Walker dealer for this service or refer to the Walker Service Manual ◊ Hydrostatic transmissions are sealed - DO NOT OPEN RESERVOIR CAPS - refer to Hydrostatic...

  • Page 56: Important Tips For Care Of The Kohler Engine

    The fuel system is pressurized. Do not attempt This allows the engine to produce full horsepower and move more cooling air through the engine cool- to service this fuel system. Contact your Walker ing fins. dealer or authorized Kohler service dealer for work on the fuel system.

  • Page 57: Lubrication

    Maintenance Instructions KOHLER TIPS/LUBRICATION • Use only Kohler oil filters. Aftermarket filters Remove the dipstick again and check the oil lev- el on the dipstick. The oil level should be within may not seal properly and/or have the incorrect the “Operating Range” on the dipstick (between pressure relief valve for proper lubrication.

  • Page 58: Changing Engine Crankcase Oil/Oil Filter

    Maintenance Instructions LUBRICATION Changing Engine Crankcase Oil/Oil Filter Reinstall the drain plug. Make sure it is tight- · ened to 10 lb·ft (14 N Change the engine crankcase oil after every 100 hours of operation and replace the oil filter every Fill the crankcase through the oil filler tube (dip- other oil change (every 200 hours of operation).

  • Page 59: Ds52 Or Ds62 Mower Deck Lubrication

    Maintenance Instructions LUBRICATION DS52 or DS62 Mower Deck Lubrication Blade Drive Gearboxes There are several special lubrication requirements for the DS52 or DS62 mower deck in addition to the require ments detailed in the Chassis and Deck Lubrica tion illustration. Lubricate the locations shown in the Gearbox, Dol ly Wheel, and U-Joint Lubrication photo and check and maintain oil in the...

  • Page 60: Tractor Pto Gearbox Lubrication

    Maintenance Instructions LUBRICATION Tractor PTO Gearbox Lubrication Changing Gearbox Oil The tractor PTO gearbox is oil filled. No scheduled Checking Gearbox Oil Level oil change is required. However, changing the oil af ter the first 100 hour break-in period will extend Check the gearbox oil level every 25 hours, and if necessary, add oil [SAE E.P.

  • Page 61: Hydrostatic Transmission Fluid

    Maintenance Instructions LUBRICATION Hydrostatic Transmission Fluid Grease Fitting and Oil Point Lubrication Lubricate the grease fittings and oil points after ev ery Checking Hydrostatic Transmission Fluid Level 25 hours of operation. Lubricate more often when The hydrostatic transmissions are sealed units operating in dusty or dirty conditions.
  • Page 62 Maintenance Instructions LUBRICATION Ident Lubrication Ident Lubrication Location Type Places Location Type Places Deck Caster Wheel Fork Pivot Grease PTO Clutch Lever Pivot Grease Deck Caster Wheel Bearing Grease Clutch Actuator Push Rod Grease Δ Blade Spindle Grease Belt Tightener Pivot, Grease Pivot Assembly, Tilt-Up Deck Grease...
  • Page 63 Maintenance Instructions LUBRICATION 30 & 39 Chassis and Deck Lubrication Points (DC42 Shown)

  • Page 64: Cleaning

    Maintenance Instructions CLEANING CLEANING Turbine Precleaner The turbine precleaner is mounted on a remote air Engine Air Cleaner System intake tube connected to the Donaldson air cleaner. A spinning fan driven by the intake airflow separates CAUTION dust from the air, giving the initial stage of air clean- ing.

  • Page 65: Donaldson Radialseal™ Air Cleaner

    Inspect the paper element after every 100 hours of ments for replacement (Donaldson P822686 or service and replace the element and safety filter Walker 5090-1). Aftermarket filters may not seal yearly (or when dirty or damaged). More frequent properly or filter efficiently.
  • Page 66 Maintenance Instructions CLEANING NOTE: Use care when cleaning the filter ele- NOTE: DO NOT use petroleum based lubri- ment. The filter element and/or seal surface cants on the sealing surfaces of the filter; use may be damaged by tapping too hard or hitting tal cum powder or dry silicone lubricants if re- quired for filter installation.

  • Page 67: Engine Cooling System

    Maintenance Instructions CLEANING Engine Cooling System Cylinder Head Cooling Fins It is essential for performance and longevity of the Cooling Air Intake System air-cooled engine to keep the cylinder head cooling fins clean and free of obstruction. After every 8 To prevent engine overheating and possible engine damage, clean grass clippings, chaff, and dirt from hours of operation, check the performance of the...

  • Page 68: Grass Buildup In Mower Deck Housing

    Maintenance Instructions CLEANING DANGER Check Airflow with Hand Cylinder Head (Not Visible) Do not operate the mower with deck in tilt- up position. Do not move the tractor with the deck in the tilt-up position. Clean grass buildup underneath the deck using a pressure washer (and scraper if required).

  • Page 69: Ghs Blower

    Maintenance Instructions CLEANING GHS Blower GHS Blower Blower Normally, the GHS blower operates with no mainte- Drive Belt Pulley Blower nance or cleaning. However, when mowing grass that is dirty and damp (especially springtime mow- Drive Pulley ing), a deposit of dirt may accumulate inside the blower housing, causing wear and binding of the blower wheel.

  • Page 70: Hydrostatic Transmission Cooling Fins

    Maintenance Instructions CLEANING/ CHECKING/SERVICING Hydrostatic Transmission Cooling Fins CHECKING/SERVICING Keeping the cooling fins on the hydrostatic trans- DANGER missions clean and free of obstruction is essential to avoid overheating the transmission fluid and shortening transmission life. The cooling fins should To prevent accidental starting of the en- be checked every 100 hours;...

  • Page 71: Battery

    Maintenance Instructions CHECKING/SERVICING IMPORTANT: DO NOT overfill the battery. Electro- Battery lyte will overflow through the vented caps onto parts NOTE: For initial battery service during setup, re fer of the machine and WILL result in severe corrosion. to Battery Service in Assembly Instructions. Cleaning the Terminals IMPORTANT: Make sure battery is securely mount- ed in the frame.

  • Page 72: Tire Pressure

    Maintenance Instructions CHECKING/SERVICING Tire Pressure WARNING Inflate tires to pressures shown below: DO NOT try to straighten a blade that is Deck Caster Wheel = 20 PSI (137 kPa) bent. NEVER weld a broken or cracked Drive = 15 PSI (103 kPa) blade.

  • Page 73: Drive Belts

    NOTE: When reinstalling blades on GHS mod- NOTE: The system is pressurized and should be els, remember, the blades turn toward each serviced by a Walker dealer or authorized Kohler other (counter-rotate) and the RH and LH blade cannot be switched. Check for proper blade ro- engine service outlet.

  • Page 74: Blade Brake Action

    Contact your Walker dealer The FSC friction lock is designed to hold the se- for this service or refer to the Walker Service Manual. lected forward travel speed when the steering le- vers are moved and yet the friction is not too heavy...

  • Page 75: Replacing/Repairing

    Maintenance Instructions REPLACING/REPAIRING REPLACING/REPAIRING Drive Belts There are four (4) individual belts on GHS models DANGER or three (3) belts on SD models: • Jackshaft Drive Belt To prevent accidental starting of the en- • gine when replacing parts or repairing the Engine PTO Drive Belt (3 Groove Power Band) machine, remove the key from the ignition •...

  • Page 76: Engine Pto Drive Belt

    Maintenance Instructions REPLACING/REPAIRING Engine PTO Drive Belt (3 Groove Power Band) Raise the clutch lever (engage position) to lift the clutch idler away from the belt. To remove the engine PTO drive belt: Next remove the belt from the engine pulley Remove the jackshaft drive belt from its and then the PTO drive pulley.

  • Page 77: Jackshaft Drive Belt

    Maintenance Instructions REPLACING/REPAIRING Jackshaft Drive Belt Relax the belt by depressing the spring- To remove the jackshaft drive belt: loaded idler arm. Remove the engine PTO drive belt, as Roll the belt off the jackshaft pulley and described in previous section. remove.

  • Page 78: Ghs Blower Drive Belt

    Maintenance Instructions REPLACING/REPAIRING GHS Blower Drive Belt Remove the GHS blower drive belt tension by depressing the idler pulley on the tightener arm. Roll the belt off the blower pulley. The belt should be clear of the blower pulley, allowing free movement of the blower wheel.

  • Page 79: Hydrostatic Ground Drive Belt

    Maintenance Instructions REPLACING/REPAIRING Hydrostatic Ground Drive Belt To remove the hydrostatic ground drive belt: Slide belt off pulleys, then release the idler. Raise the spring-loaded belt tightener arm and idler pulley to relax belt. Belt Tightener Arm Jackshaft Idler Pulley Transmission Drive Pulley Spring...

  • Page 80: Fuel Filter

    DO NOT smoke while working with fuel. • Wipe up spilled gasoline immediately and completely. Model T25i is equipped with an in-line fuel filter. Vi- sually inspect the filter periodically, and replace the filter yearly. In-Line Fuel Filter Fuel Filter Location...

  • Page 81: Blade Overload Shear Bolts

    If timing is incorrect, con- tact your Walker dealer. Reinstall the PTO shaft guard. NOTE: Use Walker P/N 8067-10 for heavy duty gearboxes. Before operating the deck, inspect the blade over- load shear bolts and also check blade timing (on gear driven decks) by moving blades through one (1) complete revolution.

  • Page 82: Mower Blades

    Maintenance Instructions REPLACING/REPAIRING • Mower Blades Check the blades for straightness by marking blade tip position inside the deck housing and then Mower blades are removed and remounted as de- rotating the opposite end of the blade to the same scribed in Sharpen Mower Blades instructions.

  • Page 83: Adjustments

    Maintenance Instructions ADJUSTMENTS ADJUSTMENTS Tilt-Up Deck Adjustable Stop Steering Handles When the carrier frame hinge joint is properly ad- justed, the deck lock levers should move in and out An adjustment range of approximately 3 in. (76 mm) of the engaged and disengaged positions freely. All is available on the steering handles - the handles four (4) hitch pins used for height adjustment should sit flush on the washers above the deck pin bushing.

  • Page 84: Ghs Signal Horn Adjustment (When Horn Sounds At Wrong Time)

    Maintenance Instructions ADJUSTMENTS GHS Signal Horn Adjustment (When Horn Sounds at Wrong Time) Exhaust ® The vertical position of the Grass-Pak switch is 4 to 4-1/2 in. Screen critical to make sure the catcher box does not over- (10.16 to 11.43 cm) fill causing the delivery chute to clog.

  • Page 85: Operator's Notes

    Operator’s Notes...
  • Page 86 Operator’s Notes...

  • Page 87: Warranty

    (1) year* after date of sale to the original retail purchaser unless the product is used for rental purposes, in which case this warranty is limited to ninety (90) days. At Walker’s request, customer will make the defective part available for inspection by Walker and/or return the defective part to Walker, transpor- tation charges prepaid.
  • Page 88 • • WALKER MFG. CO. 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 (970) 221-5614 © FORM NO. 112013 PRINTED IN USA www.walkermowers.com 2014 WALKER MFG. CO...

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