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FORM NO. 3322–291
Z–Master
250 Series
Z255
with 62" SFS Side
Discharge Mower
Model No. 74203–990001
Operator's Manual
IMPORTANT: Read this manual carefully. It contains information about your
safety and the safety of others. Also become familiar with the controls and
their proper use before you operate the product.
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Table of Contents
Related Manuals for Toro 74203
Summary of Contents for Toro 74203
- Page 1 250 Series Z255 with 62” SFS Side Discharge Mower Model No. 74203–990001 Operator’s Manual IMPORTANT: Read this manual carefully. It contains information about your safety and the safety of others. Also become familiar with the controls and their proper use before you operate the product.
- Page 2 The warning system in this manual identifies potential hazards and has special safety messages that All of us at Toro want you to be completely satisfied help you and others avoid personal injury, even death. with your new product, so feel free to contact your...
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Page 3: Table Of Contents
Contents Page Page Maintenance ......Safety ....... . . Service Interval Chart . -
Page 4: Safety
Safety This machine meets or exceeds CPSC blade safety Safe Operating Practices requirements for rotary mowers and the B71.4 1990 specifications of the American This product is capable of amputating hands and feet National Standards Institute, in effect at time of and throwing objects. - Page 5 Safety General Operation 16. Use extra care when loading or unloading the machine onto a trailer or truck. Read, understand, and follow all instructions in 17. Do not touch equipment or attachment parts the operator’s manual and on the machine before which may be hot from operation.
- Page 6 Safety Slope Operation Check carefully for overhead clearances (i.e. branches, doorways, electrical wires) before Slopes are a major factor related to loss-of-control driving under any objects and do not contact and tip-over accidents, which can result in severe them. injury or death. All slopes require extra caution. If DO NOT you cannot back up the slope or if you feel uneasy on it, do not mow it.
- Page 7 Safety Children Keep nuts and bolts tight, especially the blade attachment bolts. Keep equipment in good Tragic accidents can occur if the operator is not alert condition. to the presence of children. Children are often Never tamper with safety devices. Check safety attracted to the machine and the mowing activity.
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Page 8: Slope Chart
Safety Slope Chart Read all safety instructions on pages 3–5. - Page 9 Safety...
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Page 10: Safety And Instruction Decals
Safety Safety and Instruction Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. TOP OF CONSOLE UNDER SEAT (Part No. E513747) ON RIGHT SIDE OF HEIGHT OF ON LEFT SIDE OF ON TOP OF CONSOLE LEFT... - Page 11 Safety ON RUBBER FLAP BEHIND SEAT UNDER FOOTREST (Part No. E513748) (Part No. E633766) ON RUBBER FLAP BEHIND SEAT (Part No. E303517) ON TOP OF RIGHT ENGINE BAFFLE (Part No. E633771) ON CONSOLE AND RUBBER FLAP BEHIND SEAT (Part No. E633462) ON CONTROL PANEL (Part No.
- Page 12 Safety ON LEFT SIDE GAS TANK ON TOP OV HYDRAULIC (Part No. 99–4632) RESERVOIR (Part No. E513890) ON HYDRAULIC TANK ON HYDRAULIC RESERVOIR (Part No. 65–2690) MOUNTING BRACKET (Part No. E513929) ON DECK SUPPORT FRAME (Part No. E633818)
- Page 13 Safety UNDER FOOTREST AND (2) UNDER PULLEY COVERS (Part No. 98–5954)
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Page 14: Gasoline And Oil
Gasoline and Oil Recommended Gasoline Use UNLEADED Regular Gasoline suitable for POTENTIAL HAZARD automotive use (85 pump octane minimum). Leaded In certain conditions gasoline is extremely regular gasoline may be used if unleaded regular is flammable and highly explosive. not available. WHAT CAN HAPPEN IMPORTANT: Never use methanol, gasoline A fire or explosion from gasoline can burn... -
Page 15: Stabilizer/Conditioner
Gasoline and Oil Stabilizer/Conditioner Filling the Fuel Tank Add the correct amount of gas stabilizer/conditioner Shut the engine off and set the parking brake. to the gas. Using a stabilizer/conditioner in the Clean around each fuel tank cap and remove the machine: cap. -
Page 16: Assembly
Install seat rod Locknut 5/16” Control lever–right Control lever–left Install motion control levers Bolt 3/8–1 x 1” (26 mm) Spring washer 3/8” Operator’s Manual Read before operating machine Engine Operator’s Manual Parts Catalog Fill out and return to Toro Registration card... -
Page 17: Install Drive Wheels
Assembly Install Drive Wheels Install Seat Retaining Rod Uncrate mower. Tilt seat up. Remove 5/16” (8mm) locknut from bolt attaching seat retaining rod to seat frame Remove wheel bolts or nuts from rear wheel (Fig. 2). hubs. Remove retaining rod from seat and insert the Align holes. -
Page 18: Install Motion Control Levers
Assembly Install Motion Control Levers 12. If the ends of the levers hit against each other, while in the drive position (Fig 4) (levers rotated in as far as possible) make adjustments by Remove the (4) 3/8–16 x 1” (26 mm) bolts and moving the levers outwards to the neutral lock (4) 3/8”... -
Page 19: Activate The Battery
Assembly Activate the Battery Remove filler caps from the battery. Slowly pour electrolyte into each cell until the electrolyte level is up to the lower part of the tube (Fig. 5). Bulk electrolyte with 1.260 specific gravity must be purchased from a local battery supply outlet. Remove the battery from the machine. -
Page 20: Install Battery
Assembly Install Battery Position battery in tray with terminal posts POTENTIAL HAZARD toward the engine (Fig. 7). Charging battery produces gasses. Slide the red terminal boot onto the positive WHAT CAN HAPPEN (red) battery cable. Battery gasses can explode. HOW TO AVOID THE HAZARD Install the positive (red) battery cable to positive Keep cigarettes, sparks and flames away (+) battery terminal then negative battery cable... -
Page 21: Hydraulic System
Assembly Hydraulic System Checking the Hydraulic Fluid Check the hydraulic fluid level before engine is first started. Fluid Type: Mobil 1 15W–50 synthetic motor oil. IMPORTANT: Use only oil specified. Other fluids could cause system damage. Hydraulic System Oil Capacity: 2.1 qt. (2.0 l) Position machine on a level surface and stop the engine and set the parking brake. -
Page 22: Operation
Operation Think Safety First Parking Brake Please carefully read all the safety instructions on Always set the parking brake when you stop the pages 2–8. Knowing this information could help you, machine or leave it unattended. your family, pets or bystanders avoid injury. Setting the Parking Brake Controls Move the motion control levers (Fig. -
Page 23: Starting And Stopping The Engine
Operation Releasing the Parking Brake Turn ignition key “START” to energize starter. When engines starts, release key. Push forward and down on the parking brake IMPORTANT: Do not engage starter for lever release the parking brake (Fig. 2). The more than 10 seconds at a time. If engine fails parking brake is “DISENGAGED”... -
Page 24: Operating The Power Take Off (Pto)
Operation Stopping Operating the Power Take Off (PTO) Move the throttle lever to “SLOW” (Fig. 5). Turn the ignition key to “OFF” (Fig. 6). The power take off (PTO) switch engages and disengages power to the electric clutch. Note: If the engine has been working hard or is hot, let it idle for a minute before turning the ignition key “OFF.”... -
Page 25: The Safety Interlock System
Operation The Safety Interlock System Testing the Safety Interlock System Test the safety interlock system before you use the Understanding the Safety Interlock machine each time. If the safety system does not System operate as described below, have an Authorized Service Dealer repair the safety system immediately. -
Page 26: Driving Forward Or Backward
Operation Driving Forward or Backward Backward Move levers to the center, un-locked position. The throttle control regulates the engine speed as measured in rpm (revolutions per minute). Place the To go backward, slowly pull the motion control throttle control in the “FAST” position for best levers rearward (Fig. -
Page 27: Instruments
Operation Instruments Fuel Tanks The unit has two fuel tanks, located on the left and Hour Meter right sides. Each tank connects to the fuel shut off valve in the control panel. From there a common fuel The hour meter records the number of hours the line leads to the engine (Fig. -
Page 28: Adjusting Height-Of-Cut
Operation Adjusting Height-of-Cut Adjusting Anti-Scalp Rollers The height-of-cut is adjusted from 1-1/2” to 5” Whenever you change the height-of-cut it is (38 to 127 mm) in 1/4” (6 mm) increments by recommended to adjust the height of the anti-scalp relocating clevis pin in different hole locations. rollers. - Page 29 Operation Stud Method Center Rollers Disengage the power take off (PTO) and turn the Disengage the power take off (PTO) and turn the ignition key to “OFF” to stop the engine. Move ignition key to “OFF”. Move controllers to controllers to neutral locked position and apply neutral locked position and apply parking brake.
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Page 30: Positioning The Seat
Operation Positioning the Seat Pushing the Machine by Hand The seat can move forward and backward. Position IMPORTANT: Always push the machine by the seat where you have the best control of the hand. Never tow the machine because machine and are most comfortable. hydraulic damage may occur. -
Page 31: Tips For Mowing Grass
File down any nicks and sharpen the blades first mow at a high cutting height; then mow again as necessary. If a blade is damaged or worn, replace it two days later at a lower height setting. immediately with a genuine TORO replacement blade. -
Page 32: Maintenance
Maintenance Service Interval Chart Each Storage Service Operation Hours Hours Hours Hours Hours Service Hydraulic fluid–check level Initial Initial Oil—check level Oil—change* Initial Oil Filter–change (200 hours or every other oil change)* Hydraulic filter–change Initial Safety System—check Chassis—grease* Linkage bushings—oil* Foam Air Cleaner—service* Paper Air Cleaner—replace* Spark Plug(s)—check... -
Page 33: Cutting Blades
File down any nicks and sharpen the blades as necessary. If a blade is damaged or worn, replace it immediately with a genuine TORO replacement blade. For convenient sharpening and replacement, you may want to keep extra blades on hand. - Page 34 Maintenance Inspecting the Blades Checking for Bent Blades Inspect the cutting edges (Fig 17). If the edges Rotate the blades until the ends face forward and are not sharp or have nicks, remove and sharpen backward (Fig. 18). Measure from a level the blades.
- Page 35 Blades must be replaced if a solid object is hit, if the blade is out of balance or is bent. To ensure optimum performance and continued safety conformance of the machine, use genuine TORO replacement blades. m–1082 Replacement blades made by other manufacturers Figure 21 may result in non-conformance with safety standards.
- Page 36 Maintenance Sharpening the Blades Installing the Blades Install the blade onto the spindle shaft (Fig. 20). IMPORTANT: The curved part of the blade must be pointing upward toward the inside of POTENTIAL HAZARD the mower to ensure proper cutting. When sharpening blade, pieces of blade could be accidentally thrown.
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Page 37: Air Cleaner
Maintenance Air Cleaner Carefully slide the foam element off the paper element (Fig. 24). Foam Element: Clean and re-oil after every 25 Unscrew the cover nut and remove the cover and operating hours. paper element (Fig. 24). Paper Element: Replace after every 100 operating hours. -
Page 38: Engine Oil
Maintenance Paper Element Engine Oil A. Lightly tap the element on a flat surface to Change oil: remove dust and dirt (Fig. 26). After the first 8 operating hours. B. Inspect the element for tears, an oily film, and damage to the rubber seal. After every 100 operating hours. - Page 39 Maintenance Checking Oil Level Changing/Draining Oil Disengage the power take off (PTO) and turn the Start the engine and let it run five minutes. This ignition key to “OFF” to stop the engine. Move warms the oil so it drains better. controllers to neutral locked position and apply Park the machine so that the drain side is slightly parking brake.
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Page 40: Spark Plug
Maintenance Change Oil Filter Spark Plug Replace the oil filter every 200 hours or every other Check the spark plug(s) after every 200 operating oil change. hours. Make sure the air gap between the center and side electrodes is correct before installing the spark Note: Change oil filter more frequently when plug. -
Page 41: Greasing And Lubrication
Maintenance Checking the Spark Plug Greasing and Lubrication Look at the center of the spark plug(s) (Fig. 31). Lubricate the machine when shown on the CHECK If you see light brown or gray on the insulator, SERVICE REFERENCE AID decal (Fig. 32). Grease the engine is operating properly. -
Page 42: Cleaning The Cooling Systems
Maintenance Where to Add Grease Cleaning the Cooling Systems Lubricate the grease fittings as shown on the CHECK Before each use, check and clean cooling screen. SERVICE REFERENCE AID decal (Fig. 32). Remove any build–up of grass, dirt or other debris from the oil cooler screen and engine air intake. -
Page 43: Fuel Filter
Maintenance Fuel Filter Fuel Tank Draining The Fuel Tank Replace the fuel filter after every 200 operating hours or yearly, whichever occurs first. Replacing the Fuel Filter POTENTIAL HAZARD Never install a dirty filter if it is removed from the In certain conditions gasoline is extremely fuel line. -
Page 44: Hydraulic System
Maintenance Pull the fuel line off fuel filter (Fig. 36). Open Hydraulic System fuel shut-off valve and allow gasoline to drain into a gas can or drain pan. Checking the Hydraulic Fluid Note: Now is the best time to install a new Check the hydraulic fluid level before engine is first fuel filter because the fuel tank is started. - Page 45 Maintenance Place drain pan under filter, remove the old filter and wipe the filter adapter gasket surface clean (Fig. 38). POTENTIAL HAZARD Hydraulic fluid escaping under pressure can penetrate skin and cause injury. WHAT CAN HAPPEN Fluid accidentally injected into the skin must be surgically removed within a few hours by a doctor familiar with this form of injury or gangrene may result.
- Page 46 Maintenance 10. Check fluid level in hydraulic tank and add to Check Hydraulic Lines raise level to cover bottom of screen. DO NOT After every 100 operating hours, check hydraulic OVER FILL. lines and hoses for leaks, loose fittings, kinked lines, loose mounting supports, wear, weather and chemical deterioration.
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Page 47: Adjusting Motion Controls
Maintenance Adjusting Motion Controls Adjusting Handle Neutral If motion control levers do not align, or move easily into the console notch, adjustment is required. Adjust each lever, spring and rod separately. Note: Motion control levers must be installed correctly. See Install Motion Control Levers on page 16. - Page 48 Maintenance 10. Slide seat forward, disconnect prop rod and tilt 16. Repeat on opposite side of unit. Tighten locknuts seat fully forward. against ball joints. 11. Disconnect electrical connector from the seat safety switch. Temporarily install a jumper wire across terminals in the wiring harness connector. POTENTIAL HAZARD 12.
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Page 49: Replacing The Pump Drive Belt
Maintenance Replacing the Pump Drive Belt Adjustment Parking Brake Check pump drive belt for wear after every 50 hours Check parking brake for proper adjustment. of operation. Disengage brake lever (lever down). Pull spring loaded idler down and remove Measure the length of the spring. Measurement traction belt from the engine and hydro pump should be 2.75”... -
Page 50: Fuse
Maintenance Fuse Service Interval/Specification The electrical system is protected by fuses. It requires no maintenance, however, if a fuse blows check component/circuit for malfunction or short. Fuse: Main F1–20 amp, blade-type Alternator F2–20 amp, blade-type Raise the seat to gain access to fuse holder (Fig. 43). -
Page 51: Battery
Maintenance Battery IMPORTANT: Do not overfill the battery because electrolyte (sulfuric acid) can cause severe corrosion and damage to the chassis. Check the electrolyte level in the battery every 25 hours. Always keep the battery clean and fully Press the filler caps onto the battery. charged. - Page 52 Maintenance Mower Leveling Lift up on four (4) top chain attachment bolts, in the slots, to take slack out of chains and tighten Position mower on a flat surface. Stop the flange lock nuts (Deck is still supported by two engine, set the parking brake, remove the key rear and one front blocks under mower) and disconnect the spark plug wire(s) from the...
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Page 53: Greasing The Bearings
Maintenance Greasing the Bearings Replacing the Deck Belt The cutting unit must be lubricated regularly. Refer to Squealing when the belt is rotating, blades slipping the Service Interval Chart on page 30. Grease with when cutting grass, frayed belt edges, burn marks and No. -
Page 54: Replacing The Pto Drive Belt
Maintenance Replacing the PTO Drive Belt Squealing when the belt is rotating, blades slipping when cutting grass, frayed belt edges, burn marks and cracks are signs of a worn drive belt. Replace the PTO drive belt if any of these conditions are evident. Stop the engine, set the parking brake, remove the key and disconnect the spark plug wire(s) from the spark plug(s). - Page 55 Maintenance If the fixed idler contacts the end of the adjustment slot and more belt tension is required, a small change in the lengthen the push arms can be made (Fig. 52). To lengthen, loosen jam nut and rotate ball joint counterclockwise, one turn at a time.
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Page 56: Replacing The Grass Deflector
Maintenance Replacing the Grass Deflector POTENTIAL HAZARD An uncovered discharge opening will allow objects to be thrown in operator’s or bystander’s direction. Also, contact with blade could occur. WHAT CAN HAPPEN Thrown objects or blade contact can cause serious injury or kill you or bystanders. HOW TO AVOID THE HAZARD m–4166 Never operate mower unless grass deflector... -
Page 57: Wiring Diagram
Maintenance Wiring Diagram... -
Page 58: Cleaning And Storage
Maintenance Cleaning and Storage 12. For long-term storage (more than 90 days) add stabilizer/conditioner additive to fuel in the tank (1 oz. per gallon). Disengage the power take off (PTO), set the parking brake and turn the ignition key to “OFF” A. -
Page 59: Troubleshooting
Troubleshooting PROBLEM POSSIBLE CAUSES CORRECTIVE ACTION Starter does not crank Blade control (PTO) is Move blade control (PTO) to ENGAGED. DISENGAGED. Parking brake is not on. Set parking brake. Operator is not seated. Sit on the seat. Battery is dead. Charge the battery. - Page 60 Troubleshooting PROBLEM POSSIBLE CAUSES CORRECTIVE ACTION Engine overheats. Engine load is excessive. Reduce ground speed. Oil level in crankcase is low. Add oil to crankcase. Cooling fins and air passages Remove obstruction from under engine blower housing cooling fins and air passages. are plugged.
- Page 61 Troubleshooting PROBLEM POSSIBLE CAUSES CORRECTIVE ACTION Blades do not rotate. Drive belt is worn, loose or Install new drive belt. broken. Drive belt is off pulley. Install drive belt and check adjusting shafts and belt guides for correct position. Deck belt is worn, loose or Install new deck belt.
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Page 64: Warranty
What Is Covered By This Express Warranty? analysis of the defect in materials or workmanship or if you need a referral to a TORO ProLine Service Dealer, please feel free to The Toro Company promises to repair any TORO Product...