Introduction

This rotary blade, riding lawn mower is intended to be used by professional, hired operators, or residential homeowners. It is designed primarily for cutting grass on well-maintained lawns on residential or commercial properties. It is not designed for cutting brush or for agricultural uses.

Read this information carefully to learn how to operate and maintain your product properly and to avoid injury and product damage. You are responsible for operating the product properly and safely.

You may contact Toro directly at www.Toro.com for product safety and operation training materials, accessory information, help finding a dealer, or to register your product.

Whenever you need service, genuine Toro parts, or additional information, contact an Authorized Service Dealer or Toro Customer Service and have the model and serial numbers of your product ready. Figure 1 identifies the location of the model and serial numbers on the product. Write the numbers in the space provided.

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This manual identifies potential hazards and has safety messages identified by the safety-alert symbol (Figure 2), which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions.

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This manual uses 2 words to highlight information. Important calls attention to special mechanical information and Note emphasizes general information worthy of special attention.

It is a violation of California Public Resource Code Section 4442 or 4443 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land unless the engine is equipped with a spark arrester, as defined in Section 4442, maintained in effective working order or the engine is constructed, equipped, and maintained for the prevention of fire.

Warning

Removing standard original equipment parts and accessories may alter the warranty, traction, and safety of the machine. Failure to use original Toro parts could cause serious injury or death. Making unauthorized changes to the engine, fuel or venting system, may violate EPA and CARB regulations.

Replace all parts including, but not limited to, tires, belts, blades, and fuel system components with original Toro parts.

Please refer to the engine manufacturer’s information included with the machine.

Warning

CALIFORNIA

Proposition 65 Warning

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.

Use of this product may cause exposure to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Safety

Improper use or maintenance by the operator or owner can result in injury. To reduce the potential for injury, comply with these safety instructions, and pay attention to the safety alert symbol, which means Caution, Warning, or Danger—personal safety instruction. Failure to comply with the instructions may result in personal injury or death.

This machine was manufactured according to the appropriate regulatory standards in effect at the time of manufacture. Modifying this machine in any way may cause it to be out of compliance with those standards and with the instructions in this Operator’s Manual. Modifications to this machine should only be made by either the manufacturer or an Authorized Toro Dealer.

This product is capable of amputating hands and feet. Follow all safety instructions to avoid serious injury or death.

The owner/user can prevent and is responsible for accidents or injuries occurring to people, or damage to property.

The addition of attachments made by other manufacturers that do not meet American National Standards Institute certification may cause noncompliance of this machine.

Safe Operating Practices

The following instructions are from ANSI standard B71.4-2012.

Training

  • Read the Operator's Manual and other training material. If the operator(s) or mechanic(s) cannot read the manual language, it is the owner's responsibility to explain this material to them.

  • Become familiar with the safe operation of the equipment, operator controls, and safety signs.

  • All operators and mechanics should be trained. The owner is responsible for training the users.

  • Never let children or untrained people operate or service the equipment. Local regulations may restrict the age of the operator.

  • The owner/user can prevent and is responsible for accidents or injuries occurring to himself or herself, other people, or damage to property.

Preparation

  • Evaluate the terrain to determine what accessories and attachments you need to properly and safely perform the job. Use only accessories and attachments approved by the manufacturer.

  • Wear appropriate clothing; including safety glasses, long pants, substantial slip-resistant footwear, gloves, and hearing protection. Tie back long hair. Do not wear jewelry.

  • Inspect the area where you will use the equipment and ensure that all objects are removed from the area before use.

  • Use extra care when handling fuels. They are flammable and vapors are explosive.

    • Use only an approved container.

    • Do not remove the fuel cap or add fuel with the engine running. Allow the engine to cool before refueling. Do not smoke near the machine when the engine is running.

    • Do not refuel or drain the machine indoors.

  • Check that the operator's presence controls, safety switches, and shields are attached and functioning properly. Do not operate the machine unless they are functioning properly.

Operation

  • Lightning can cause severe injury or death. If lightning is seen, or thunder is heard in the area, do not operate the machine; seek shelter.

  • Do not run an engine in an enclosed area.

  • Operate only in well-lit areas, keeping away from holes and hidden hazards.

  • Ensure that all drives are in neutral and that the parking brake is engaged before starting engine. Start the engine only from the operator’s position.

  • Make sure that you have good footing while using this machine, especially when backing up. Reduced footing could cause slipping.

  • Slow down and use extra care on hillsides. Be sure to travel side to side on hillsides. Turf conditions can affect the stability of the machine. Use caution while operating near drop-offs.

  • Slow down and use caution when making turns and when changing directions on slopes.

  • Do not raise the mower deck with the blades running.

  • Do not operate the machine without the PTO shield or other guards securely in place. Be sure that all interlocks are attached, adjusted properly, and functioning properly.

  • Do not operate with the discharge deflector raised, removed or altered, unless you are using a grass catcher.

  • Do not change the engine governor setting or overspeed the engine.

  • Stop the machine on level ground, disengage the drives, engage the parking brake, and shut off the engine before leaving the operator's position for any reason, including emptying the catchers or unclogging the chute.

  • Stop the machine and inspect the blades after striking objects or if an abnormal vibration occurs. Make the necessary repairs before resuming operations.

  • Keep your hands and feet away from the cutting unit.

  • Look behind and down before backing up to ensure a clear path.

  • Keep pets and bystanders away from an operating machine.

  • Slow down and use caution when making turns and crossing roads and sidewalks. Stop the blades if you are not mowing.

  • Be aware of the mower-discharge direction and do not point it at anyone.

  • Do not operate the machine while tired, ill, or under the influence of alcohol or drugs.

  • Use care when loading or unloading the machine into or from a trailer or truck.

  • Use care when approaching blind corners, shrubs, trees, or other objects that may obscure vision.

Safe Handling of Fuels

  • To avoid personal injury or property damage, use extreme care in handling fuel. Fuel is extremely flammable and the vapors are explosive.

  • Extinguish all cigarettes, cigars, pipes, and other sources of ignition.

  • Use only an approved fuel container.

  • Do not remove the fuel cap or add fuel with the engine running.

  • Allow the engine to cool before fueling.

  • Do not fuel the machine indoors.

  • Do not store the machine or fuel container where there is an open flame, spark, or pilot light, such as on a water heater or on other appliances.

  • Do not fill containers inside a vehicle, on a truck, or on a trailer bed with a plastic liner. Always place containers on the ground away from your vehicle before filling.

  • Remove equipment from the truck or trailer and fuel it on the ground. If this is not possible, then add fuel with such equipment as a portable container rather than from a fuel-dispenser nozzle.

  • Keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete. Do not use a nozzle lock-open device.

  • If you spill fuel on clothing, change your clothing immediately.

  • Do not overfill the fuel tank. Replace the fuel cap and tighten it securely.

Maintenance and Storage

  • Disengage drives, engage the parking brake, shut off the engine, and remove the key or disconnect spark-plug wire. Wait for all movement to stop before adjusting, cleaning, or repairing.

  • Clean grass and debris from the cutting unit, drives, mufflers, and engine to help prevent fires.

  • Clean up oil or fuel spills.

  • Let the engine cool before storing the machine.

  • Do not store fuel near flames or drain the fuel indoors.

  • Do not allow untrained personnel to service the machine.

  • Use jack stands to support components when required.

  • Carefully release pressure from components with stored energy.

  • Disconnect the battery or remove the spark-plug wire before making any repairs. Disconnect the negative terminal first and the positive terminal last. Connect the positive terminal first and negative last.

  • Use care when checking the blades. Wrap the blade(s) or wear gloves, and use caution when servicing them. Only replace blades; do not straighten or weld them.

  • Keep hands and feet away from moving parts. If possible, do not make adjustments with the engine running.

  • Keep all parts in good working condition and all hardware tightened. Replace all worn or damaged decals.

Hauling

  • Use care when loading or unloading the machine into a trailer or a truck.

  • Use full-width ramps for loading machine into a trailer or a truck.

  • Tie the machine down securely using straps, chains, cable, or ropes. Both front and rear straps should be directed down and outward from the machine.

Toro Mower Safety

The following list contains safety information specific to Toro products and other safety information that you must know.

This product is capable of amputating hands and feet and of throwing objects. Always follow all safety instructions to avoid serious injury or death.

This product is designed for cutting and recycling grass, or, when equipped with a grass bagger, for catching cut grass. Any use for purposes other than these could prove dangerous to the user and bystanders.

General Operation

  • Be sure that the area is clear of bystanders before mowing. Stop the machine if anyone enters the area.

  • Do not touch equipment or attachment parts which may be hot from operation. Allow all of the parts to cool before attempting to maintain, adjust, or service the machine.

  • Use only Toro-approved attachments. Warranty may be voided if used with any unapproved attachments.

  • Check carefully for overhead clearances (i.e., branches, doorways, electrical wires, etc.) before operating under any objects, and do not contact them.

  • Slow down before making turns and use extra caution.

  • Use caution when riding the platform over curbs, rocks, roots, or other obstructions.

  • Look behind and down before backing up to ensure a clear path. Use extra care when operating the machine in reverse.

  • Do not jerk the controls; use a steady motion.

  • When loading or unloading the machine, use one full-width ramp that is wide enough to extend beyond the width of the machine.

  • Do not carry passengers.

  • Do not carry equipment on the machine.

Slope Operation

All slopes and ramps require extra caution. If you feel uneasy on a slope, do not mow it.

  • Remove obstacles such as rocks, tree limbs, etc. from the mowing area.

  • Watch for holes, ruts or bumps. Tall grass can hide obstacles.

  • Use caution near drop-offs, ditches, or embankments. The machine could suddenly turn over if a wheel goes over the edge of a cliff or ditch, or if an edge caves in.

  • Use extra care with grass catchers or other attachments. These can change the stability of the machine.

  • Keep all movement on slopes slow and gradual.

  • Do not make sudden changes in speed or direction.

  • Mow slopes side to side.

  • Do not mow slopes greater than 20 degrees.

Service

  • Do not store the machine or a fuel container inside where there is an open flame, such as near a water heater or furnace.

  • Keep the nuts and bolts tight, especially the blade-attachment bolts.

  • Never remove or tamper with safety devices. Check their proper operation regularly. Never do anything to interfere with the intended function of a safety device or to reduce the protection provided by a safety device.

  • To best protect your investment and maintain optimal performance of your Toro equipment, count on Toro genuine parts. When it comes to reliability, Toro delivers replacement parts designed to the exact engineering specifications of our equipment. For peace of mind, insist on Toro genuine parts.

  • Check the operation of the brakes frequently. Adjust and service them as required.

Slope Indicator

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Safety and Instructional Decals

Graphic

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 missing.

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Product Overview

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Become familiar with all the controls before you start the engine and operate the machine (Figure 5).

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Electronic-Control Unit Malfunction-Indicator Light

The electronic-control unit (ECU) continuously monitors the operation of the EFI system.

If a problem or fault within the system is detected, the malfunction-indicator light (MIL) is illuminated (Figure 5).

The MIL is the red light located in the console panel.

When the MIL illuminates, make initial troubleshooting checks.

If these checks do not correct the problem, further diagnosis and servicing by an Authorized Service Dealer is necessary.

Hour Meter

The hour meter records the number of hours the engine has operated. It operates when the engine is running. Use these times for scheduling regular maintenance (Figure 5).

Safety-Interlock Indicators

Symbols on the hour meter indicate with a black triangle that the interlock component is in the correct position (Figure 5).

Battery-Indicator Light

If the key is turned to the ON position for a few seconds, the battery voltage displays in the area where the hours are normally displayed.

The battery light turns on when the key is turned to the ON position and when the charge is below the correct operating level (Figure 5).

Throttle Control

The throttle control is variable between Fast and Slow (Figure 5).

Blade-Control Switch (PTO)

Use the blade-control switch (PTO) to engage and disengage the mower blades (Figure 5).

Key Switch

The key switch, used to start and shut off the engine, has 3 positions: OFF, RUN, and START. Refer to Operating the Key Switch.

Motion-Control Levers

Use the motion-control levers to drive the machine forward, reverse, and turn either direction (Figure 5).

Fuel-Shutoff Valve

Close the fuel-shutoff valve when transporting or storing the machine; refer to Using the Fuel-Shutoff Valve.

Accessory Frame

Use the accessory frame to attach only Toro-approved accessories to the machine (Figure 4). Refer to the Operator’s Manual for the accessory for installation instructions.

Accessory-Frame Lock

The accessory-frame lock holds the frame in place on the machine using the lock pin. Always lock the frame unless a hydraulic kit is installed with an accessory on the machine (Figure 4).

Adjustable Casters

When using the machine without an accessory, place the adjustable casters in the mowing position (front hole) as shown in Figure 6. When using the machine with an accessory, refer to the Operator’s Manual for that accessory for the correct caster position.

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Note: Specifications and design are subject to change without notice.

52-inch Mowers

Width with deflector down173 cm (68 inches)
Width with deflector raised137 cm (54 inches)
Length with platform down191 cm (75 inches)
Length with platform up155 cm (61 inches)
Height122 cm (48 inches)
Weight412 kg (908 lb)

60-inch Mowers

Width with deflector down193 cm (76 inches)
Width with deflector raised157 cm (62 inches)
Length with platform down201 cm (79 inches)
Length with platform up165 cm (65 inches)
Height122 cm (48 inches)
Weight427 kg (941 lb)

Attachments/Accessories

A selection of Toro approved attachments and accessories is available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or Distributor or go to www.Toro.com for a list of all approved attachments and accessories.

To best protect your investment and maintain optimal performance of your Toro equipment, count on Toro genuine parts. When it comes to reliability, Toro delivers replacement parts designed to the exact engineering specification of our equipment. For peace of mind, insist on Toro genuine parts.

Operation

Note: Determine the left and right sides of the machine from the normal operating position.

Think Safety First

Carefully read all the safety instructions and decals in the safety section. Knowing this information could help you or bystanders avoid injury.

Caution

This machine produces sound levels in excess of 85 dBA at the operator's ear and can cause hearing loss from extended periods of exposure.

Wear hearing protection when operating this machine.

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Adding Fuel

  • For best results, use only clean, fresh (less than 30 days old), unleaded gasoline with an octane rating of 87 or higher ((R+M)/2 rating method).

  • Ethanol: Gasoline with up to 10% ethanol (gasohol) or 15% MTBE (methyl tertiary butyl ether) by volume is acceptable. Ethanol and MTBE are not the same. Gasoline with 15% ethanol (E15) by volume is not approved for use. Never use gasoline that contains more than 10% ethanol by volume, such as E15 (contains 15% ethanol), E20 (contains 20% ethanol), or E85 (contains up to 85% ethanol). Using unapproved gasoline may cause performance problems and/or engine damage which may not be covered under warranty.

  • Do not use gasoline containing methanol.

  • Do not store fuel either in the fuel tank or fuel containers over the winter unless you use a fuel stabilizer.

  • Do not add oil to gasoline.

Danger

In certain conditions, fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and others and can damage property.

  • Fill the fuel tank outdoors, in an open area, when the engine is cold. Wipe up any fuel that spills.

  • Never fill the fuel tank inside an enclosed trailer.

  • Do not fill the fuel tank completely full. Add fuel to the fuel tank until the level is 6 to 13 mm (1/4 to 1/2 inch) below the bottom of the filler neck. This empty space in the tank allows fuel to expand.

  • Never smoke when handling fuel, and stay away from an open flame or where fuel fumes may be ignited by a spark.

  • Store fuel in an approved container and keep it out of the reach of children. Never buy more than a 30-day supply of fuel.

  • Do not operate without entire exhaust system in place and in proper working condition.

Danger

In certain conditions during fueling, static electricity can be released causing a spark, which can ignite the fuel vapors. A fire or explosion from fuel can burn you and others and can damage property.

  • Always place fuel containers on the ground away from your vehicle before filling.

  • Do not fill fuel containers inside a vehicle or on a truck or trailer bed because interior carpets or plastic truck bed liners may insulate the container and slow the loss of any static charge.

  • When practical, remove gas-powered equipment from the truck or trailer and refuel the equipment with its wheels on the ground.

  • If this is not possible, then refuel such equipment on a truck or trailer from a portable container rather than from a fuel-dispenser nozzle.

  • If you must use a fuel-dispenser nozzle, keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete.

Warning

Fuel is harmful or fatal if swallowed. Long-term exposure to vapors can cause serious injury and illness.

  • Avoid prolonged breathing of vapors.

  • Keep face away from nozzle and fuel tank or conditioner bottle opening.

  • Avoid contact with skin; wash off spills with soap and water.

Using Stabilizer/Conditioner

Use a fuel stabilizer/conditioner in the machine to provide the following benefits:

  • Keeps fuel fresh during storage of 90 days or less. For longer storage, drain the fuel tank.

  • Cleans the engine while it runs

  • Eliminates gum-like varnish buildup in the fuel system, which causes hard starting

    Important: Do not use fuel additives containing methanol or ethanol.

    Add the correct amount of fuel stabilizer/conditioner to the fuel.

    Note: A fuel stabilizer/conditioner is most effective when mixed with fresh fuel. To minimize the chance of varnish deposits in the fuel system, use fuel stabilizer at all times.

Filling the Fuel Tank

  1. Park the machine on a level surface, disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.

  2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

  3. Clean around the fuel-tank cap and remove the cap.

  4. Fill the fuel tank to the bottom of the filler neck.

    Note: Do not fill the fuel tank completely full. The empty space in the tank allows the gasoline to expand.

  5. Install the fuel-tank cap securely. Wipe up any spilled fuel.

Checking the Engine-Oil Level

Before you start the engine and use the machine, check the oil level in the engine crankcase; refer to Checking the Engine-Oil Level.

Breaking in a New Machine

New engines take time to develop full power. Mower decks and drive systems have higher friction when new, placing additional load on the engine. Allow 40 to 50 hours of break-in time for new machines to develop full power and best performance.

Operating the Parking Brake

Always engage the parking brake when you stop the machine or leave it unattended. Before each use, check the parking brake for proper operation.

If the parking brake does not hold securely, adjust it; refer to Adjusting the Brakes.

Caution

Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended.

Always remove the key and engage the parking brake when leaving the machine unattended.

Engaging the Parking Brake

Pull the parking-brake lever rearward into the ENGAGED position (Figure 8).

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Disengaging the Parking Brake

Push the parking-brake lever forward (Figure 8).

Operating the Mower-Blade-Control Switch (PTO)

Use the blade-control switch (PTO) in conjunction with the motion-control levers to engage and disengage the mower blades.

Engaging the Mower Blades (PTO)

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Disengaging the Mower Blades (PTO)

Figure 10 and Figure 11 show 2 ways to disengage the mower blades.

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Operating the Throttle

You can move the throttle control between FAST and SLOW positions (Figure 12).

Always use the FAST position when engaging the PTO.

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Operating the Key Switch

Important: Do not engage the starter for more than 5 seconds at a time. If the engine fails to start, wait 15 seconds between attempts. Failure to follow these instructions can burn out the starter motor.

Note: You may need to repeat the cycle for starting the engine when you start it for the first time after you have filled a completely empty fuel system with fuel.

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Using the Fuel-Shutoff Valve

Close the fuel-shutoff valve for transport, maintenance, and storage (Figure 15).

Ensure that the fuel-shutoff valve is open when starting the engine.

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Starting the Engine

Important: Do not engage the starter for more than 5 seconds at a time. If the engine fails to start, wait 15 seconds between attempts. Failure to follow these instructions can burn out the starter motor.

Note: You may need to repeat the cycle for starting the engine when you start it for the first time after you have filled a completely empty fuel system with fuel.

Note: The machine may have difficulty starting under severe cold conditions. When starting a cold machine, keep the machine above -23°C (-10°F).

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Shutting Off the Engine

Caution

Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended.

Always remove the key and engage the parking brake when leaving the machine unattended.

Let the engine idle at slow throttle (turtle) for 60 seconds before turning the key switch to the OFF position.

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Important: Make sure that the fuel-shutoff valve is closed before transporting or storing the machine to prevent a fuel leak. Before storing the machine, disconnect the spark plug(s) to prevent the possibility of accidental starting.

The Safety-Interlock System

Caution

If the safety-interlock switches are disconnected or damaged, the machine could operate unexpectedly, causing personal injury.

  • Do not tamper with the interlock switches.

  • Check the operation of the interlock switches daily and replace any damaged switches before operating the machine.

Understanding the Safety-Interlock System

The safety-interlock system is designed to prevent the mower blades from rotating unless you do 1 of the following:

  • Move either motion-control lever to the center, unlocked position.

  • Pull the blade-control switch (PTO) to the ON position.

    The safety-interlock system is designed to stop the mower blades if you move or release both motion-control levers into the NEUTRAL-LOCK position.

    The hour meter has symbols to notify the user when each interlock component is in the correct position. When the component is in the correct position, a triangle lights up in the corresponding square (Figure 18).

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Testing the Safety-Interlock System

Maintenance Service IntervalMaintenance Procedure
Before each use or daily
  • Check the safety-interlock system.
  • Test the safety-interlock system before you use the machine each time.

    Note: If the safety system does not operate as described below, have an Authorized Service Dealer repair the safety system immediately.

    1. Start the engine; refer to Starting the Engine.

    2. Move the motion-control levers to the center, unlocked position.

      Note: The blades should not rotate and the engine should shut off.

    3. Start the engine and release the parking brake.

    4. Move either motion-control lever to the center, unlocked position.

    5. Continue holding the motion-control lever in the center, unlocked position, pull up on the blade-control switch (PTO), and release the switch.

      Note: The clutch should engage and the mower blades rotate.

    6. Move or release the motion-control levers into the NEUTRAL-LOCK position.

      Note: The blades should stop rotating and the engine should continue to run.

    7. Push the blade-control switch down and move either motion-control lever to the center, unlocked position.

    8. Continue holding the motion-control lever in the center, unlocked position, pull up on the blade-control switch (PTO), and release the switch.

      Note: The clutch should engage and the mower blades should rotate.

    9. Push the blade-control switch (PTO) down to the OFF position.

      Note: The blades should stop rotating.

    10. With the engine running, pull up the blade-control switch (PTO) and release it without holding either motion-control lever to the center, unlocked position.

      Note: The blades should not rotate.

    Warning

    The operator platform is heavy and may cause injury when lowering and raising the operator platform. Carefully lower or raise the operator platform, as suddenly dropping it could injure you.

    • Do not put your hands or fingers in the platform-pivot area when lowering or raising the operator platform.

    • Make sure that the platform is supported when you pull the latch pin out.

    • Make sure that the latch secures the platform when folding it up. Push it tight against the cushion for the latch pin to lock into place.

    • Keep bystanders away when raising or lowering the platform.

    Operating the Platform

    You can use the machine with the platform in the up or down position. It is your preference on which position to use.

    Operating the Machine with the Platform Up

    Operate the machine with the platform up for the following conditions:

    • Mowing near drop-offs

    • Mowing small areas where the machine is too large

    • Areas with low, over-hanging branches or obstacles

    • Loading the machine for transport

    • Driving up slopes

    To raise the platform, pull the back of the platform up so that the latch pin and knob lock it into place. Push it tight against the cushion for the latch pin to lock it into place.

    Operating the Machine with the Platform Down

    Operate the machine with the platform down for the following conditions:

    • Mowing most areas

    • Driving across slopes

    • Driving down slopes

    To lower the platform, push the platform forward against the cushion to release pressure on the latch pin, then pull the knob out and lower the platform (Figure 19).

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    Driving Forward or Backward

    The throttle control regulates the engine speed as measured in rpm (revolutions per minute). Place the throttle control in the FAST position for best performance.

    Important: Back the machine over curbs; driving it forward over curbs could damage the machine.

    Caution

    The machine can spin very rapidly, and you may lose control of the machine, causing personal injury to you and damage to the machine.

    Slow down the machine before making sharp turns.

    Driving Forward

    1. Disengage the parking brake; refer to Disengaging the Parking Brake.

    2. Move the motion-control levers to the center, unlocked position.

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    3. Slowly push the motion-control levers forward (Figure 21).

      Note: The engine shuts off if you move a motion-control lever while the parking brake is engaged.

      Note: The farther you move the motion-control levers in either direction, the faster the machine moves in that direction.

      Note: To stop, pull the motion-control levers back to the NEUTRAL position.

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    Driving Backward

    1. Move both motion-control levers to the center, unlocked position.

    2. Slowly pull the motion-control levers rearward (Figure 22).

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    Stopping the Machine

    To stop the machine, move the motion-control levers to neutral, then move the right motion-control lever into the NEUTRAL-LOCK position, disengage the power takeoff (PTO), and turn the key to the OFF position.

    Engage the parking brake when you leave the machine; refer to Engaging the Parking Brake. Remember to remove the key from the switch.

    Caution

    Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended.

    Always remove the key and engage the parking brake when leaving the machine unattended.

    Pushing the Machine by Hand

    The bypass valves allow you to push the machine by hand without the engine running (Figure 23).

    Important: Always push the machine by hand. Do not tow the machine, because hydraulic damage may occur.

    Important: Do not start or operate the machine with the bypass valves open. Damage to the system may occur.

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    Transporting the Machine

    Use a heavy-duty trailer or truck to transport the machine. Ensure that the trailer or truck has all necessary brakes, lighting, and markings as required by law. Please carefully read all the safety instructions.

    1. Raise the platform of the machine before driving up onto the trailer or truck.

    2. If using a trailer, connect it to the towing vehicle and connect the safety chains.

    3. If applicable, connect the trailer brakes.

    4. Load the machine onto the trailer or truck.

    5. Shut off the engine, remove the key, set the brake, and close the fuel valve.

    6. Use the metal tie-down loops on the machine to securely fasten the machine to the trailer or truck with straps, chains, cable, or ropes (Figure 24).

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    Loading the Machine

    Use extreme caution when loading or unloading the machine onto a trailer or a truck. Use a full-width ramp that is wider than the machine for this procedure. Back the machine up the ramp and walk it forward down the ramp (Figure 25).

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    Important: Do not use narrow individual ramps for each side of the machine.

    Warning

    Loading a machine onto a trailer or truck increases the possibility of tip-over and could cause serious injury or death (Figure 26).

    • Use extreme caution when operating a machine on a ramp.

    • Use only a full-width ramp; do not use individual ramps for each side of the machine.

    • Do not exceed a 15-degree angle between the ramp and the ground or between the ramp and the trailer or truck.

    • Ensure that the length of ramp is at least 4 times as long as the height of the trailer or truck bed to the ground. This ensures that the ramp angle does not exceed 15 degrees on flat ground.

    • Back the machine up the ramp and drive it forward down the ramp.

    • Avoid sudden acceleration or deceleration while driving the machine on a ramp as this could cause a loss of control or a tip-over situation.

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    Side Discharging or Mulching the Grass

    This machine has a hinged grass deflector that disperses clippings to the side and down toward the turf.

    Danger

    Without the grass deflector, discharge cover, or complete grass catcher assembly mounted in place, you and others are exposed to blade contact and thrown debris. Contact with rotating mower blade(s) and thrown debris cause injury or death.

    • Do not remove the grass deflector from the machine, because the grass deflector routes material down toward the turf. If the grass deflector is ever damaged, replace it immediately.

    • Never put your hands or feet under the machine.

    • Never try to clear the discharge area or mower blades unless you release the bail and the power takeoff (PTO) is off. Rotate the key to the OFF position. Also remove the key and disconnect the wire(s) from the spark plug(s).

    Adjusting the Height-of-Cut

    The height-of-cut can be adjusted from 38 to 127 mm (1-1/2 to 5 inches) in 6 mm (1/4 inch) increments.

    Note: Using a height-of-cut under 51 mm (2 inches) increases the wear on the mower-deck belt. Use a height-of-cut that is greater than 51 mm (2 inches) whenever possible.

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    Adjusting the Anti-Scalp Rollers

    Models with a 60-Inch Deck Only

    Whenever you change the height-of-cut, adjust the height of the anti-scalp rollers.

    1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Remove the nut and bolt position the anti-scalp rollers and install the nut and bolt.

    4. Ensure that the spacers and bushings are installed (Figure 28).

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    Adjusting the Flow Baffle

    You can adjust the mower-discharge flow for different types of mowing conditions. Position the cam lock and baffle to provide the best quality of cut.

    1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. To adjust the baffle, loosen the nut (Figure 29).

    4. Adjust the baffle and nut in the slot to the desired discharge flow and tighten the nut.

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    Using the Mid-Size Weight

    • Install weights to improve balance. You can add or remove weights to create optimized performance under different mowing conditions and for your preference.

    • Add or remove weights 1 at a time until you achieve the desired handling and balance.

    Note: Contact an Authorized Service Dealer to order a Weight Kit.

    Warning

    Excessive weight changes can affect the handling and operation of the machine. This could cause serious injury to you or bystanders.

    • Make weight changes in small increments only.

    • Evaluate the machine after each weight change to ensure that you can operate it safely.

    Maintenance

    Note: Determine the left and right sides of the machine from the normal operating position.

    Recommended Maintenance Schedule(s)

    Maintenance Service IntervalMaintenance Procedure
    After the first 8 hours
  • Change the engine oil.
  • Check the hydraulic-fluid level.
  • After the first 50 hours
  • Change the hydraulic filters and hydraulic fluid.
  • After the first 100 hours
  • Check the wheel-lug nuts.
  • Check the wheel-hub nuts.
  • Before each use or daily
  • Check the safety-interlock system.
  • Check the engine-oil level.
  • Clean the air-intake screen.
  • Check the brakes.
  • Inspect the blades.
  • Clean under the mower deck.
  • Wash the machine, especially after winter applications.
  • Every 50 hours
  • Check the spark arrester (if equipped).
  • Check the tire pressure.
  • Every 100 hours
  • Change the engine oil(more often in dirty or dusty conditions).
  • Check the battery.
  • Check the clutch.
  • Check and clean the engine cooling fins and shrouds.
  • Check the mower-deck belt.
  • Every 150 hours
  • Inspect the primary filter and the air-inlet screen.
  • Every 200 hours
  • Change the engine-oil filter.
  • Check, clean and gap the spark plug.
  • Every 300 hours
  • Grease the engine voltage regulator.(More often if grease is not present.)
  • Replace the primary air filter(more often in dusty or sandy conditions).
  • Check the inner air filter.
  • Every 500 hours
  • Adjust the caster-pivot bearing.
  • Check the wheel-hub nuts.
  • Check the hydraulic-fluid level.
  • Change the hydraulic filters and hydraulic fluid.
  • Every 600 hours
  • Replace the inner air filter.
  • Every 800 hours
  • Replace the fuel filter.
  • Every 1,000 hours
  • Replace the transmission belt.
  • Before storage
  • Paint chipped surfaces.
  • Perform all maintenance procedures listed above before storage.
  • Yearly
  • Grease the torsion idler.
  • Grease the front caster pivots (more often in dirty or dusty conditions).
  • Grease the caster-wheel hubs.
  • Grease the brake calipers.
  • Grease the motion controls.
  • Apply anti-seize compound to the cushion knobs.
  • Apply dielectric grease to the battery terminals.
  • Important: Refer to your engine owner’s manual for additional maintenance procedures.

    Caution

    If you leave the key in the key switch, someone could accidently start the engine and seriously injure you or other bystanders.

    Remove the key from the key switch and disconnect the wires from the spark plugs before you do any maintenance. Set the wires aside so that they do not accidentally contact the spark plugs.

    Pre-Maintenance Procedures

    Releasing the Cushion for Rear Access

    You can release the cushion for rear access to the machine for maintenance or adjustment.

    1. Lower the platform.

    2. Loosen the twist knobs on each side of the machine (Figure 30).

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    3. Remove the cushion and lower it to the platform.

    4. Perform any maintenance or adjustment on the machine.

    5. Raise the cushion, and slide it onto the pins on both sides of the machine.

    6. Tighten the twist knobs.

    Lubrication

    Grease with No. 2 lithium or molybdenum grease.

    1. Disengage the PTO and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Clean the grease fittings with a rag.

      Note: Make sure to scrape any paint off the front of the fitting(s).

    4. Connect a grease gun to the fitting.

    5. Pump grease into the fittings until grease begins to ooze out of the bearings.

    6. Wipe up any excess grease.

    Greasing the Accessory Frame

    Grease the pivots of the accessory frame at the locations shown in Figure 31.

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    Greasing the Torsion Idler

    Maintenance Service IntervalMaintenance Procedure
    Yearly
  • Grease the torsion idler.
  • Grease the torsion idler on the mower deck using high-temperature grease at the grease fitting shown in Figure 32.

    Important: Use only high-temperature grease.

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    Greasing the Front Caster Pivots

    Maintenance Service IntervalMaintenance Procedure
    Yearly
  • Grease the front caster pivots (more often in dirty or dusty conditions).
    1. Remove the dust cap and adjust the caster pivots; refer to Adjusting the Caster-Pivot Bearing.

      Note: Keep the dust cap off until you have finished greasing the caster pivots.

    2. Remove the hex plug.

    3. Thread a grease fitting into the hole.

    4. Pump grease into the fitting until it oozes out around the top bearing.

    5. Remove the grease fitting from the hole.

    6. Install the hex plug and dust cap.

    Greasing the Caster-Wheel Hubs

    Maintenance Service IntervalMaintenance Procedure
    Yearly
  • Grease the caster-wheel hubs.
  • Grease type: Lithium or molybdenum grease

    1. Park the machine on a level surface, disengage the PTO, and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Remove the caster wheel from the caster forks.

    4. Remove the seal guards from the wheel hub (Figure 33).

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    5. Remove 1 spacer nut from the axle assembly in the caster wheel.

      Note: Thread-locking adhesive has been applied to lock the spacer nuts to the axle. Remove the axle (with the other spacer nut still assembled to it) from the wheel assembly.

    6. Pry out the seals, inspect bearings for wear or damage, and replace them if necessary.

    7. Pack the bearings with a general-purpose grease.

    8. Insert 1 bearing and 1 new seal into the wheel.

      Note: You must replace the seals.

    9. If both spacer nuts in the axle assembly have been removed (or broken loose), apply a thread-locking adhesive to 1 spacer nut, threading it onto the axle with the wrench flats facing outward.

      Note: Do not thread the spacer nut all of the way onto the end of the axle. Leave approximately 3 mm (1/8 inch) from the outer surface of the spacer nut to the end of the axle inside the nut.

    10. Insert the assembled nut and axle into the wheel on the side of the wheel with the new seal and bearing.

    11. With the open end of the wheel facing up, fill the area inside the wheel around the axle full of general-purpose grease.

    12. Insert the second bearing and the new seal into the wheel.

    13. Apply a thread-locking adhesive to the second spacer nut, threading it onto the axle with the wrench flats facing outward.

    14. Torque the nut to 8 to 9 N∙m (71 to 80 in-lb), loosen it, then torque it to 2 to 3 N∙m (20 to 25 in-lb).

      Note: Make sure that the axle does not extend beyond either nut.

    15. Install the seal guards over the wheel hub and insert the wheel into the caster fork.

    16. Install the caster bolt and tighten the nut fully.

    Important: To prevent seal and bearing damage, check the bearing adjustment often by spinning the caster wheel. The wheel should not spin freely (more than 1 or 2 revolutions) or have any side play. If the wheel spins freely, adjust the torque on the spacer nut until there is a slight amount of drag, and apply thread-locking adhesive.

    Greasing the Engine Voltage Regulator

    Maintenance Service IntervalMaintenance Procedure
    Every 300 hours
  • Grease the engine voltage regulator.(More often if grease is not present.)
  • Grease type: Dielectric grease

    1. Park the machine on a level surface, disengage the PTO, and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Disconnect the spark plug wires from the spark plug.

    4. Lightly apply grease to the voltage regulator blades (Figure 34).

      Important: Too much grease can cause water to pool at the connector and short the regulator.

    5. Connect the spark plug.

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    Greasing the Brake Calipers

    Maintenance Service IntervalMaintenance Procedure
    Yearly
  • Grease the brake calipers.
  • Apply a rust-preventative spray to the brake calipers yearly.

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    Greasing the Motion Controls

    Maintenance Service IntervalMaintenance Procedure
    Yearly
  • Grease the motion controls.
  • Apply anti-seize compound to the cushion knobs.
  • Grease the operator-presence-control balljoint and the motion-control bushing for both levers.

    Note: Use an oil drip between the lever brackets to grease the bushing, located in the pivot tube.

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    Engine Maintenance

    Servicing the Air Cleaner

    Maintenance Service IntervalMaintenance Procedure
    Every 150 hours
  • Inspect the primary filter and the air-inlet screen.
  • Every 300 hours
  • Replace the primary air filter(more often in dusty or sandy conditions).
  • Check the inner air filter.
  • Every 600 hours
  • Replace the inner air filter.
  • Note: Check the filters more frequently if the operating conditions are extremely dusty or sandy.

    Removing the Filters

    1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Release the latches on the air cleaner and pull the air-inlet cover off the air-cleaner body (Figure 37).

    4. Clean the air-inlet screen and cover.

    5. Install the air-inlet cover and secure it with the latches (Figure 37).

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    6. Release the latches on the air cleaner and pull the air-cleaner cover off the air-cleaner body (Figure 38).

    7. Clean the inside of the air-cleaner cover with compressed air.

    8. Gently slide the primary filter out of the air-cleaner body (Figure 38).

      Note: Avoid knocking the filter into the side of the body.

    9. Remove the safety filter only if you intend to replace it.

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    10. Inspect the primary filter for damage by looking into the filter while shining a bright light on the outside of the filter.

      Note: Holes in the filter appear as bright spots. If the filter is damaged, discard it.

    Servicing the Primary Filter

    • If the primary filter is dirty, bent, or damaged, replace it.

    • Do not clean the primary filter.

    Servicing the Safety Filter

    Replace the safety filter, never clean it.

    Important: Do not attempt to clean the safety filter. If the safety filter is dirty, then the primary filter is damaged. Replace both filters.

    Installing the Filters

    Important: To prevent engine damage, always operate the engine with both air filters and the cover installed.

    1. If installing new filters, check each filter for shipping damage.

      Note: Do not use a damaged filter.

    2. If you are replacing the safety filter, carefully slide it into the filter body (Figure 38).

    3. Carefully slide the primary filter over the safety filter (Figure 38).

      Note: Ensure that the primary filter is fully seated by pushing on the outer rim while installing it.

      Important: Do not press on the soft, inside area of the filter.

    4. Install the air-cleaner cover and secure the latches (Figure 38).

    Servicing the Engine Oil

    Oil Type: Detergent oil (API service SJ or higher)

    Oil Capacity: 1.65 L (56 oz) with a filter change; 1.50 L (51 oz) without a filter change

    Viscosity: See the table below.

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    Note: Use a synthetic oil with 5W-20 or 5W-30 rating, up to 4°C (40°F).

    Note: Synthetic oils provide better starting when the temperature is below -23°C (-10°F).

    Checking the Engine-Oil Level

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Check the engine-oil level.
  • Note: Check the oil when the engine is cold.

    Warning

    Contact with hot surfaces may cause personal injury.

    Keep your hands, feet, face, clothing and other body parts away the muffler and other hot surfaces.

    Important: Do not run the engine with the oil level above the Full mark or below the Low mark. Otherwise, doing so may damage the engine.

    1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position (Figure 40).

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    Changing the Engine Oil

    Maintenance Service IntervalMaintenance Procedure
    After the first 8 hours
  • Change the engine oil.
  • Every 100 hours
  • Change the engine oil(more often in dirty or dusty conditions).
  • Note: Dispose of the used oil at a recycling center.

    1. Start the engine and let it run for 5 minutes.

      Note: This warms the oil so it drains better.

    2. Park the machine so that the rear is slightly lower than the front to ensure that the oil drains completely.

    3. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.

    4. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position (Figure 41).

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    5. Slowly pour approximately 80% of the specified oil into the filler tube and slowly add the additional oil to bring it to the Full mark (Figure 42).

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    6. Start the engine and drive to a flat area.

    7. Check the oil level again.

    Changing the Engine-Oil Filter

    Maintenance Service IntervalMaintenance Procedure
    Every 200 hours
  • Change the engine-oil filter.
  • Note: Change the engine-oil filter more frequently when operating conditions are extremely dusty or sandy.

    1. Drain the oil from the engine; refer to Changing the Engine-Oil Filter.

    2. Change the engine-oil filter (Figure 43).

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      Note: Ensure that the oil-filter gasket touches the engine, then rotate the filter an extra 3/4 turn.

    3. Fill the crankcase with the proper type of new oil; refer to Changing the Engine Oil.

    Servicing the Spark Plug

    Maintenance Service IntervalMaintenance Procedure
    Every 200 hours
  • Check, clean and gap the spark plug.
  • Make sure that the air gap between the center and side electrodes is correct before installing the spark plug.

    Use a spark plug wrench for removing and installing the spark plug(s) and a gapping tool/feeler gauge to check and adjust the air gap. Install a new spark plug(s) if necessary.

    Type for all Engines: Kohler 25 132 14-c, Champion XC12YC, or equivalent

    Air Gap: 0.75 mm (0.03 inch)

    Removing the Spark Plug

    1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Remove the spark plug as shown in Figure 44.

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    Checking the Spark Plug

    Important: Do not clean the spark plug(s). Always replace the spark plug(s) when it has a black coating, worn electrodes, an oily film, or cracks.

    If you see light brown or gray on the insulator, the engine is operating properly. A black coating on the insulator usually means the air cleaner is dirty.

    Set the gap to 0.75 mm (0.03 inch).

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    Installing the Spark Plug

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    Checking the Spark Arrester

    If Equipped
    Maintenance Service IntervalMaintenance Procedure
    Every 50 hours
  • Check the spark arrester (if equipped).
  • Warning

    Hot exhaust-system components may ignite fuel vapors even after the engine is shut off. Hot particles exhausted during engine operation may ignite flammable materials. Fire may result in personal injury or property damage.

    Do not refuel or run the engine unless the spark arrester is installed.

    1. Shut off the engine, wait for all moving parts to stop, engage the parking brake, and remove the key.

    2. Wait for the muffler to cool.

    3. If any breaks in the screen or welds are observed, replace the arrester.

    4. If plugging of the screen is observed, remove the arrester, shake loose particles out of the arrester, and clean the screen with a wire brush (soak in solvent if necessary).

    5. Install arrester on exhaust outlet.

    Fuel System Maintenance

    Draining the Fuel Tank

    You can drain the fuel tank by removing it and pouring the fuel out of the fill neck; refer to Removing the Fuel Tank. You can also drain the fuel tank by using a siphon in the following procedure.

    Danger

    In certain conditions, fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and others and can damage property.

    • Drain fuel from the fuel tank when the engine is cold. Do this outdoors in an open area. Wipe up any fuel that spills.

    • Never smoke when draining fuel, and stay away from an open flame, or where a spark may ignite the fuel fumes.

    1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position

    3. Clean around the fuel cap to prevent debris from getting into the fuel tank (Figure 47).

    4. Remove the fuel cap.

    5. Insert a syphon pump into the fuel tank.

    6. Using the syphon pump, drain the fuel into a clean gas can (Figure 47).

    7. Wipe up any spilled fuel.

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    Removing the Fuel Tank

    1. Lower the platform.

    2. Release the cushion; refer to Releasing the Cushion for Rear Access.

    3. Remove the cross bracket.

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    4. Remove the fuel tank and set it on the operator platform.

      Note: If you want to move the fuel tank further from the machine, remove the fuel and vent lines from the top of the tank.

    Servicing the Fuel Filter

    Replacing the Fuel Filter

    Maintenance Service IntervalMaintenance Procedure
    Every 800 hours
  • Replace the fuel filter.
  • Do not install a dirty filter if it is removed from the fuel line.

    Note: Wipe up any spilled fuel.

    1. Disengage the PTO and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Close the fuel-shutoff valve; refer to Using the Fuel-Shutoff Valve.

    4. Replace the fuel filter as shown in Figure 49.

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    Electrical System Maintenance

    Servicing the Battery

    Maintenance Service IntervalMaintenance Procedure
    Every 100 hours
  • Check the battery.
  • Yearly
  • Apply dielectric grease to the battery terminals.
  • Always keep the battery clean and fully charged. Use a paper towel to clean the battery case. If the battery terminals are corroded, clean them with a solution of 4 parts water and 1 part baking soda. Apply a light coating of grease to the battery terminals to prevent corrosion.

    Voltage: 12 V

    Danger

    Do not drink electrolyte, and avoid contact with skin, eyes or clothing. Wear safety glasses to shield your eyes and rubber gloves to protect your hands.

    Battery electrolyte contains sulfuric acid, a deadly poison that causes severe burns.

    Removing the Battery

    Warning

    Battery terminals or metal tools could short against metal machine components, causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury.

    • When removing or installing the battery, do not allow the battery terminals to touch any metal parts of the machine.

    • Do not allow metal tools to short between the battery terminals and metal parts of the machine.

    Warning

    Incorrect battery-cable routing could damage the machine and cables, causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury.

    • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable.

    • Always connect the positive (red) battery cable before connecting the negative (black) cable.

    1. Disengage the PTO and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Remove the battery as shown in Figure 50.

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    Installing the Battery

    Install the battery as shown in Figure 51.

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    Charging the Battery

    Warning

    Charging the battery produces gasses that can explode.

    Never smoke near the battery and keep sparks and flames away from battery.

    Important: Always keep the battery fully charged (1.265 specific gravity) to prevent battery damage when the temperature is below 0°C (32°F).

    1. Remove the battery from the chassis; refer to Removing the Battery.

    2. Check the electrolyte level.

    3. Ensure that the filler caps are installed on the battery.

    4. Charge the battery for 1 hour at 25 to 30 A or 6 hours at 4 to 6 A.

    5. When the battery is fully charged, unplug the charger from the electrical outlet, and disconnect the charger leads from the battery posts (Figure 52).

    6. Install the battery onto the machine and connect the battery cables; refer to Installing the Battery.

      Note: Do not run the machine with the battery disconnected; electrical damage may occur.

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    Servicing the Fuses

    The electrical system is protected by fuses and requires no maintenance. If a fuse blows, check the component or circuit for a malfunction or short.

    1. Release the cushion from the rear of the machine.

    2. Pull out the fuse to remove or replace it (Figure 53).

    3. Install the cushion to the rear of the machine.

      Note: Ensure that the correct-size fuse is installed Figure 53.

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    Drive System Maintenance

    Adjusting the Tracking

    Note: Determine the left and right sides of the machine from the normal operating position.

    1. Push both control levers forward the same distance.

    2. Check if the machine pulls to 1 side.

      Note: If it does, shut off the machine and engage the parking brake.

    3. Release the cushion from the rear of the machine; refer to Releasing the Cushion for Rear Access.

      Note: For easier access, you can also remove the fuel tank; refer to Removing the Fuel Tank.

    4. Rotate the left control rod in quarter-turn increments until the machine tracks straight (Figure 54).

      Note: If the machine pulls to the right, shorten the control rod by rotating it to the right. If the machine pulls to the left, lengthen the rod by rotating it to the left.

      Note: Only adjust the left control rod to match the left wheel speed to the right wheel speed. Do not adjust the right wheel speed, as this positions the right motion-control lever out of the center for the control panel neutral-lock slot.

      Important: Do not rotate the control rod too far, as this may cause the machine to creep in neutral.

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    5. Check for proper tracking, and adjust the rod as necessary.

      Note: If you are unable to achieve proper tracking by adjusting the left control rod, contact your Authorized Service Dealer.

    6. Check that the machine does not creep from the neutral position with the park brakes disengaged.

    7. Install the fuel tank, if you removed it.

    8. Install the cushion.

    Checking the Tire Pressure

    Maintenance Service IntervalMaintenance Procedure
    Every 50 hours
  • Check the tire pressure.
  • Maintain the air pressure in the rear tires at 83 to 97 kPa (12 to 14 psi).

    Important: Uneven tire pressure can cause an uneven cut.

    Note: The front tires are semi-pneumatic tires and do not require air-pressure maintenance.

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    Adjusting the Caster-Pivot Bearing

    Maintenance Service IntervalMaintenance Procedure
    Every 500 hours
  • Adjust the caster-pivot bearing.
    1. Disengage the blade-control switch (PTO), move the motion control levers to the NEUTRAL-LOCK position, and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Remove the dust cap from the caster and tighten the locknut (Figure 56).

    4. Tighten the locknut until the spring washers are flat, and then back off a 1/4 turn to properly set the preload on the bearings (Figure 56).

      Important: Make sure that the spring washers are installed correctly as shown in Figure 56.

    5. Install the dust cap (Figure 56).

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    Servicing the Caster Wheels and Bearings

    The caster wheels rotate on a roller bearing supported by a spanner bushing. If the bearing is kept well lubricated, wear will be minimal. Failure to keep the bearing well lubricated causes rapid wear. A wobbly caster wheel usually indicates a worn bearing.

    1. Remove the locknut and wheel bolt holding the caster wheel to the caster fork (Figure 57).

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    2. Remove 1 bushing, then pull the spanner bushing and roller bearing out of the wheel hub (Figure 57).

    3. Remove the other bushing from the wheel hub and clean any grease and dirt from the wheel hub (Figure 57).

    4. Inspect the roller bearing, bushings, spanner bushing and the inside of the wheel hub for wear.

      Note: Replace any damaged or worn parts (Figure 57).

    5. Place 1 bushing into the wheel hub (Figure 57).

    6. Grease the roller bearing and spanner bushing, and slide them into the wheel hub (Figure 57).

    7. Place the second bushing into the wheel hub (Figure 57).

    8. Install the caster wheel into the caster fork and secure it with the wheel bolt and locknut (Figure 57).

    9. Tighten the locknut until the spanner bushing bottoms against the inside of the caster forks (Figure 57).

    10. Grease the fitting on the caster wheel.

    Using the Clutch Shim

    Maintenance Service IntervalMaintenance Procedure
    Every 100 hours
  • Check the clutch.
  • Some later model year units have been built with clutches that contain a brake shim. When the clutch brake has worn to the point where the clutch no longer engages consistently, you can remove the shim to extend the clutch life.

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    Removing the Clutch Shim

    1. Shut off the engine, wait for all moving parts to stop, and remove the key.

    2. Engage the parking brake and wait for machine to cool completely.

    3. Using an air compressor, blow out any debris under the brake pole and around the brake spacers.

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    4. Check the condition of the wire-harness leads, connectors, and terminals. Clean or repair them as necessary.

    5. Verify that 12 V is present at the clutch connector when the you engage the blade-control switch (PTO).

    6. Measure the gap between the rotor and armature. If the gap is greater than 1 mm (0.04 inch), proceed with the following steps:

      1. Loosen both brake mounting bolts 1/2 to 1 full turn as shown in Figure 60.

        Note: Do not remove the brake pole from the field shell/armature. The brake pole has worn to match the armature and needs to continue to match after you remove the shim to ensure the proper brake torque.

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      2. Using needle-nose pliers, or by hand, remove the shim.

        Note: Do not discard the shim until you confirm that the clutch functions properly.

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      3. Using a pneumatic line, blow out any debris under the brake pole and around the brake spacers.

      4. Torque each bolt (M6 x 1) to 12.3 to 13.7 N∙m (9.5 to 10.5 ft-lb).

      5. Using a 0.010 inch thick-feeler gauge, verify that a gap is present between the rotor and armature face on both sides of the brake pole as shown in Figure 62 and Figure 63.

        Note: Due to the way the rotor and armature faces wear (peaks and valleys), it is sometimes difficult to measure the true gap.

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        • If the gap is less than 0.010 inch, then install the shim and refer to .

        • If the gap is sufficient, proceed to the safety check in step 6.

      6. Perform the following safety check:

        1. Sit on the seat and start the engine.

        2. Make sure that the blades do not engage when the blade-control switch (PTO) is in the OFF position and the clutch is disengaged.

          Note: If the clutch does not disengage, install the shim, and refer to .

        3. Engage and disengage the blade-control switch (PTO) 10 consecutive times to ensure that the clutch is functioning properly.

          Note: If the clutch does not engage properly, refer to .

    Checking the Wheel-Lug Nuts

    Maintenance Service IntervalMaintenance Procedure
    After the first 100 hours
  • Check the wheel-lug nuts.
  • Check and torque the wheel lug nuts to 115 to 142 N∙m (85 to 105 ft-lb).

    Checking the Wheel-Hub Nuts

    Maintenance Service IntervalMaintenance Procedure
    After the first 100 hours
  • Check the wheel-hub nuts.
  • Every 500 hours
  • Check the wheel-hub nuts.
  • Check and torque the wheel hub nuts to 286 to 352 N∙m (211 to 260 ft-lb).

    Cooling System Maintenance

    Cleaning the Air-Intake Screen

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Clean the air-intake screen.
  • Before each use, remove any buildup of grass, dirt, or other debris from the cylinder and cylinder-head cooling fins, air-intake screen on the flywheel end, and the carburetor-governor levers and linkage. This helps ensure that adequate cooling and correct engine speed, and reduces the possibility of overheating or mechanical damage to the engine.

    Cleaning the Cooling System

    Maintenance Service IntervalMaintenance Procedure
    Every 100 hours
  • Check and clean the engine cooling fins and shrouds.
    1. Disengage the PTO and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Remove the air-intake screen and fan housing (Figure 64).

    4. Clean the debris and grass from the engine parts.

    5. Install the air-intake screen and the fan housing (Figure 64).

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    Brake Maintenance

    Servicing the Brake

    Before each use, check the brakes on a level surface and slope.

    Always engage the parking brake when you stop the machine or leave it unattended.

    Important: If the parking brake does not hold securely, adjust it.

    Checking the Parking Brake

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Check the brakes.
    1. Park the machine on a level surface and disengage the PTO.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Release the brake.

    4. Engage the brake lever and ensure that the machine does not move.

    5. Adjust the brake if needed.

    Adjusting the Brakes

    1. Remove the fuel tank; refer to Removing the Fuel Tank.

    2. Loosen the bolt on the cable clamp on the left side of the machine.

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    3. Pull down on the cables until they are taut.

    4. Tighten the nut.

    5. Install the fuel tank, cross bracket, and cushion.

    Belt Maintenance

    Replacing the Mower-Deck Belt

    Maintenance Service IntervalMaintenance Procedure
    Every 100 hours
  • Check the mower-deck belt.
  • Signs of a worn belt include squeaking when the belt is rotating, a slipping blade when cutting grass, a frayed belt edge, burn marks, and cracks. Replace the deck belt if any of these conditions are evident.

    1. Disengage the PTO and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Replace the belt as shown in Figure 66.

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    Replacing the Transmission Belt

    Maintenance Service IntervalMaintenance Procedure
    Every 1,000 hours
  • Replace the transmission belt.
    1. Remove the fuel tank; refer to Removing the Fuel Tank.

    2. Remove the hydraulic-reservoir cap.

    3. Locate the drain plugs in the bottom of the transmission and place a drain pan under the plug (Figure 67).

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    4. Allow the hydraulic fluid to drain from the machine.

    5. Remove the lower hydraulic hose (Figure 68).

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    6. Remove the tension spring (Figure 68).

      Caution

      The spring is under tension when installed and can cause personal injury.

      Wear safety glasses and be careful when removing the spring.

    7. Remove the deck belt from the clutch and clutch stop (Figure 68).

    8. Install the new belt.

    9. Install the tension spring and lower hydraulic hose.

    10. Install the drain plugs.

    11. Add hydraulic fluid to the fill level.

    12. Install the hydraulic-reservoir cap.

    13. Run the machine for 10 minutes and verify that the hydraulic fluid is at the correct level.

    Controls System Maintenance

    Adjusting the Motion-Control Levers

    If the motion-control levers do not align horizontally, adjust the right side motion-control lever.

    1. Disengage the PTO, move the motion-control levers to the neutral position, and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Push the motion-control levers down out of the NEUTRAL-LOCK position (Figure 69).

    4. Check if the right motion-control lever aligns horizontally with the left motion-control lever (Figure 69).

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    5. To adjust the motion-control levers horizontally, you must adjust the cam.

    6. Release the cushion from the rear of the machine.

    7. Loosen the nut holding the cam (Figure 70).

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    8. Adjust the cam until it aligns with the left motion-control lever and tighten the nut for the cam.

      Note: Moving the cam clockwise (in the vertical position) lowers the handle; moving the cam counterclockwise (in the vertical position) raises the handle.

      Important: Ensure that the flat portion of the cam does not go above a vertical position (right or left); otherwise you may damage the switch.

    9. Repeat steps 3 through 8 for the left motion-control lever.

    Hydraulic System Maintenance

    Servicing the Hydraulic System

    Hydraulic Fluid Type: Toro® HYPR-OIL 500 hydraulic fluid

    Hydraulic System Fluid Capacity: 4.7 L (5 US qt)

    Important: Use the fluid specified. Other fluids could damage the system.

    Checking the Hydraulic Fluid

    Maintenance Service IntervalMaintenance Procedure
    After the first 8 hours
  • Check the hydraulic-fluid level.
  • Every 500 hours
  • Check the hydraulic-fluid level.
  • Note: Check the hydraulic fluid level when the fluid is cold.

    1. Position the machine on a level surface.

    2. Disengage the power takeoff (PTO) and shut off the engine.

    3. Wait for all moving parts to stop and engage the parking brake before leaving the operating position.

    4. Clean the area around the cap and the filler neck of the hydraulic tank (Figure 71).

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    5. Remove the cap from the filler neck (Figure 71).

      Note: Look inside to check the fluid level in the reservoir.

    6. Add fluid to the reservoir until it reaches the minimum cold fill level.

    7. Install the cap on the filler neck.

      Warning

      Hydraulic fluid escaping under pressure can penetrate skin and cause injury.

      • If hydraulic fluid is injected into the skin, it must be surgically removed within a few hours by a doctor familiar with this type of injury. Gangrene may result if this is not done.

      • Keep your body and hands away from pinhole leaks or nozzles that eject high-pressure hydraulic fluid.

      • Use cardboard or paper to find hydraulic leaks.

      • Safely relieve all pressure in the hydraulic system before performing any work on the hydraulic system.

      • Make sure that all hydraulic-fluid hoses are in good condition, and all that the hydraulic connections and fittings are tight before applying pressure to the hydraulic system.

    Replacing the Hydraulic Fluid and Filters

    Maintenance Service IntervalMaintenance Procedure
    After the first 50 hours
  • Change the hydraulic filters and hydraulic fluid.
  • Every 500 hours
  • Change the hydraulic filters and hydraulic fluid.
  • Change the hydraulic fluid more frequently in severe conditions or in a hot operating climate. Contact your Authorized Service Dealer for a hydraulic kit to replace the hydraulic filters.

    Warning

    Hot hydraulic fluid can cause severe burns.

    Allow the hydraulic fluid to cool before performing any maintenance on the hydraulic system.

    1. Disengage the PTO and engage the parking brake.

    2. Shut off the engine and wait for all moving parts to stop before leaving the operating position.

    3. Remove the fuel tank; refer to Removing the Fuel Tank.

    4. Remove the hydraulic-reservoir cap.

    5. Locate the drain plug in the bottom of each transmission and place a drain pan under the plugs (Figure 72).

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    6. Remove the drain plugs.

    7. Allow the hydraulic fluid to fully drain from the machine.

    8. Remove the hydraulic filter cap and filter from each transmission.

    9. Install new hydraulic filters with the spring side facing out and install the filter caps.

    10. Install the drain plugs.

    11. Loosen the vent plug in each transmission so that it is loose and wobbles (Figure 73).

      Note: This allows air to escape the hydraulic system as you add hydraulic fluid.

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    12. Slowly add fluid to the hydraulic tank until it starts to come out 1 of the vent plugs.

      Important: Use the fluid specified in Servicing the Hydraulic System or equivalent. Other fluids could cause system damage.

      Important: Monitor the level of fluid in the hydraulic tank so that you do not overfill it.

    13. Tighten the vent plugs.

    14. Install the hydraulic-tank cap.

    15. Install the fuel tank.

    16. Start the engine and let it run for about 2 minutes to purge air from the system.

    17. Shut off the engine and check for leaks.

      Note: If 1 or both wheels do not drive, refer to Bleeding the Hydraulic System.

    Bleeding the Hydraulic System

    The traction system is self-bleeding, however, it may be necessary to bleed the system if fluid is changed or after work is performed on the system.

    1. Disengage the PTO and engage the parking brake.

    2. Shut off the engine and wait for all moving parts to stop before leaving the operating position.

    3. Raise the rear of the machine onto jack stands high enough to raise the drive wheels off the ground.

    4. Start the engine and move the throttle control to the idle position.

      Note: If the drive wheel does not rotate, it is possible to assist the purging of the system by carefully rotating the tire in the forward direction.

    5. Check the hydraulic fluid level as it drops, and add fluid as required to maintain the proper level.

    6. Repeat this procedure for the opposite wheel.

    Mower Deck Maintenance

    Removing the Mower Deck

    1. Shut off the engine, wait for all moving parts to stop, engage the parking brake, and remove the key.

    2. Use the height-of-cut lever to lower the mower deck onto wood blocks.

    3. Remove the mower-deck belt; refer to Replacing the Mower-Deck Belt.

    4. Remove the 2 bolts and 2 nuts connecting the strut bracket to the frame (Figure 74).

      Note: Retain the fasteners with the strut bracket.

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    5. Remove the 2 bolts, 2 nuts, and washer connecting the mower-deck hangers to the lift plates for both sides of the mower deck (Figure 75 and Figure 76).

      Note: Retain the mounting hardware with the deck chains.

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    6. Rotate the caster wheels forward.

    7. Slide the mower deck out from under the machine.

    8. If you are using the machine in a winter application without a PTO-powered attachment, remove the clutch to prevent corrosion as follows:

      1. Unplug the wire harness from the clutch (Figure 39).

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      2. Remove the bolt, washer, spring washer, and clutch (Figure 77).

      3. Apply anti-seize compound to the crank shaft, then install the bolt, washer, spring washer, and a spacer (Toro part no. 136-5411) to the shaft (Figure 78).

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      4. Apply dielectric grease to the connector and use a cable tie to secure it to the machine.

    Installing the Mower Deck

    1. Slide the mower deck under the machine.

    2. Rotate the caster wheels rearward.

    3. Connect the deck hangers to the lift plates using the 2 bolts, 2 nuts, and 2 washers that you retained for each side of the mower deck.

      Note: Mount the front hanger brackets on the outside of the front lift arms for 52-inch decks (Figure 75). Mount the front hanger brackets on the inside of the front lift arms for 60-inch decks (Figure 76).

      Note: Torque the bolts to 38 to 49 N∙m (28 to 36 ft-lb).

    4. Install the 2 bolts that you retained to connect the strut bracket to the frame (Figure 74).

      Note: Torque the bolts to 61 to 75 N∙m (45 to 55 ft-lb).

    5. Install the mower-deck belt; refer to Replacing the Mower-Deck Belt.

    6. Level the mower deck; refer to Leveling the Mower Deck from Side to Side and Leveling the Mower Deck from Front to Rear.

    Servicing the Blades

    To ensure a superior quality of cut, keep the blades sharp. For convenient sharpening and replacement, you may want to keep extra blades on hand.

    Warning

    A worn or damaged blade can break, and a piece of the blade could be thrown at you or bystanders, resulting in serious personal injury or death.

    • Inspect the blades periodically for wear or damage.

    • Replace a worn or damaged blade.

    Before Inspecting or Servicing the Blades

    Park the machine on a level surface, disengage the blades and engage the parking brake. Shut off the engine, remove the key, and disconnect the spark-plug wires from the spark plugs.

    Inspecting the Blades

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Inspect the blades.
    1. Inspect the cutting edges (Figure 79).

    2. If the edges are not sharp or have nicks, remove and sharpen the blade; refer to Sharpening the Blades.

    3. Inspect the blades, especially in the curved area.

    4. If you notice any cracks, wear, or a slot forming in this area, immediately install a new blade (Figure 79).

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    Checking for Bent Blades

    1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Rotate the blades until the ends face forward and backward.

    4. Measure from a level surface to the cutting edge, position A, of the blades (Figure 80).

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    5. Rotate the opposite ends of the blades forward.

    6. Measure from a level surface to the cutting edge of the blades at the same position as in step 4 above.

      Note: The difference between the dimensions obtained in steps 4 and 5 must not exceed 3 mm (1/8 inch).

      Note: If this dimension exceeds 3 mm (1/8 inch), replace the blade.

      Warning

      A blade that is bent or damaged could break apart and could critically injure you or bystanders.

      • Always replace a bent or damaged blade with a new blade.

      • Do not file or create sharp notches in the edges or surfaces of the blade.

    Removing the Blades

    Replace the blades if they hit a solid object, if a blade is out of balance, or if a blade is bent. To ensure optimum performance and continued safety conformance of the machine, use genuine Toro replacement blades. Replacement blades made by other manufacturers may result in nonconformance with safety standards.

    1. Hold the blade end using a rag or a thickly-padded glove.

    2. Remove the blade bolt, the curved washer, and the blade from the spindle shaft (Figure 81).

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    Sharpening the Blades

    1. Use a file to sharpen the cutting edge at both ends of the blade (Figure 82).

      Note: Maintain the original angle.

      Note: The blade retains balance if the same amount of material is removed from both cutting edges.

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    2. Check the balance of the blade by putting it on a blade balancer (Figure 83).

      Note: If the blade stays in a horizontal position, the blade is balanced.

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    3. If the blade is not balanced, file some metal off the end of the sail area only (Figure 81).

    4. Repeat this procedure until the blade is balanced.

    Installing the Blades

    1. Install the blade onto the spindle shaft (Figure 84).

      Important: The curved part of the blade must be pointing upward toward the inside of the deck to ensure proper cutting.

    2. Install the spring disk and blade bolt (Figure 84).

      Note: The spring-disk cone must be installed toward the bolt head (Figure 84).

    3. Torque the blade bolt to 115 to 150 N∙m (85 to 110 ft-lb).

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    Correcting the Quality of Cut

    If a deck blade cuts lower than the other, correct it as follows:

    Note: Tire air pressure is critical in these procedures; make sure that the rear tires have the correct pressure.

    1. Disengage the PTO and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Disconnect the spark-plug wire(s) from the spark plug(s).

    4. Adjust the tire pressure in the rear tires to 83 to 97 kPa (12 to 14 psi).

    5. Check that the blades and spindle shafts are not bent; refer to Checking for Bent Blades.

    6. Set the height-of-cut to the 7.6 cm (3 inches) position; refer to Adjusting the Height-of-Cut.

    Checking the Mower Deck Side-to-Side Height

    1. Adjust the rear-tire pressure.

    2. Ensure that the blades are not bent; refer to Checking for Bent Blades.

    3. Position the blades side-to-side.

    4. Measure at the B and C locations from a level surface to the cutting edge of blade tips (Figure 85).

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    5. The difference between measurements B and C should be no more than 6 mm (1/4 inch).

      Note: If it is not correct, refer to Leveling the Mower Deck from Side to Side.

    Leveling the Mower Deck from Side to Side

    1. Loosen the side nut and jam nut in the yokes you want to adjust (Figure 86).

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    2. Rotate the top bolt of the yokes to adjust the height of the mower deck (Figure 86).

      Note: Rotate the bolts clockwise to raise the deck; rotate the bolt counterclockwise to lower it.

    3. Tighten the jam nuts and side bolts.

    4. Check the side-to-side height; refer to Checking the Mower Deck Side-to-Side Height.

    Checking the Mower Deck Front-to-Rear Pitch

    1. Adjust the tire pressure in the rear tires to the correct specifications.

    2. Position 1 blade front-to-rear. Measure at A and B locations from a level surface to the cutting edge of the blade tips (Figure 87).

      Note: The mower blade should be 6 mm (1/4 inch) lower in front at A than in the rear at B.

    3. Rotate the blades and repeat for other blades.

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    4. If the front-to-rear pitch is not correct, refer to Leveling the Mower Deck from Front to Rear.

    Leveling the Mower Deck from Front to Rear

    1. Loosen the jam nut and side bolt in the yokes that you want to adjust (Figure 88).

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    2. Rotate the top bolt of the yokes to adjust the height of the mower deck (Figure 88).

      Note: Rotate the bolt clockwise to raise the deck; rotate the bolt counterclockwise to lower it.

    3. Tighten the jam nuts and side bolts.

    4. Check the front-to-rear pitch; refer to Checking the Mower Deck Front-to-Rear Pitch.

    Matching the Height-of-Cut

    1. Check the rear tire pressure.

    2. Set the height-of-cut to the 7.6 cm (3 inches) position; refer to Adjusting the Height-of-Cut.

    3. With the machine on level surface, position 1 blade front-to-rear.

    4. Measure at A, and from a level surface to the cutting edge of the blade tips (Figure 89).

      Note: The measurement should be 7.6 cm (3 inches).

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    5. If the measurement is not correct, locate the front 2 yokes on the machine (Figure 88).

    6. Loosen the side bolt and jam nut of the yokes.

    7. Adjust the top bolt of the yokes until the blade tips match 7.6 cm (3 inches).

    8. Tighten the jam nuts and side bolts.

    Adjusting the Deck-Lift Spring

    Note: Adjusting the deck-lift spring alters how much the deck floats and how much effort it takes to lift the deck when using the height-of-cut handle.

    1. Raise the deck-lift lever and lock it into the TRANSPORT position.

    2. Check the length between the spring nut and the rear side of the welded mount bracket (Figure 90).

    3. Ensure that the length is between 47 to 50 mm (1.8 to 2 inches) (Figure 90).

    4. If needed, adjust the distance by adjusting the bolt on the front of the mount bracket (Figure 90).

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    5. Repeat this procedure for the opposite deck-lift spring.

    Replacing the Grass Deflector

    Warning

    An uncovered discharge opening could allow the machine to throw objects toward you or bystanders, resulting in serious injury. Also, contact with the blade could occur.

    Do not operate the machine unless you install a cover plate, a mulch plate, grass deflector, or bagger.

    1. Remove the locknut, bolt, spring, and spacer holding the deflector to the pivot brackets (Figure 91).

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    2. Remove the damaged or worn grass deflector.

    3. Place the spacer and the spring onto the grass deflector.

    4. Place 1 J-hook end of the spring behind the deck edge.

      Note: Make sure that 1 J-hook end of spring is installed behind deck edge before installing the bolt as shown in Figure 91.

    5. Install the bolt and the nut.

    6. Place 1 J-hook end of the spring around the grass deflector (Figure 91).

      Important: The grass deflector must be able to rotate. Lift the deflector up to the full open position, and ensure that it rotates into the full-down position.

    Cleaning

    Cleaning under the Mower Deck

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Clean under the mower deck.
  • Wash the machine, especially after winter applications.
  • Remove the grass buildup under the mower daily.

    1. Park the machine on a level surface, disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.

    2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Raise the front of the machine and use jack stands to support the mower.

    Disposing of the Waste

    Engine oil, batteries, hydraulic-fluid, and engine coolant are pollutants to the environment. Dispose of these according to your state and local regulations.

    Storage

    Cleaning and Storage

    1. Disengage the power takeoff (PTO), engage the parking brake, shut off the engine, and remove the key.

    2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine.

      Important: You can wash the machine with a mild detergent and water. Do not pressure wash the machine. Avoid excessive use of water, especially near the drive system and engine. Pressure washing can force dirt and water into critical parts, such as spindle bearings and electrical switches.

    3. Clean any dirt and chaff from the outside of the engine cylinder head fins and blower housing.

    4. Check the brake; refer to Checking the Parking Brake.

    5. Service the air cleaner; refer to Servicing the Air Cleaner.

    6. Grease the machine; refer to Lubrication.

    7. Change the engine oil; refer to Changing the Engine Oil.

    8. Check the tire pressure; refer to Checking the Tire Pressure.

    9. For long-term storage, do the following:

      1. Add stabilizer/conditioner additive to the fuel in the tank.

      2. Run the engine to distribute the conditioned fuel through the fuel system (5 minutes).

      3. Shut off the engine, allow it to cool, and drain the fuel tank; refer to Draining the Fuel Tank, or operate the engine until it stops.

      4. Start the engine and allow it to run until it stops. Repeat, on Choke until engine does not start.

      5. Dispose of fuel properly. Recycle as per local regulations.

        Note: Do not store fuel with stabilizer/conditioner over 90 days.

    10. Remove the spark plug(s) and check its condition; refer to Servicing the Spark Plug. With the spark plug(s) removed from the engine, pour 15 mL (2 tablespoons) of engine oil into the spark plug hole. Now use the starter to crank the engine and distribute the oil inside the cylinder. Install the spark plug(s). Do not connect the wire to the spark plug(s).

    11. Check and tighten all of the bolts, nuts, and screws. Repair or replace any part that is damaged or defective.

    12. Paint all scratched or bare metal surfaces with paint from an Authorized Service Dealer.

    13. Store the machine in a clean, dry, garage or storage area. Remove the key from the switch and store it in a memorable place. Cover the machine to protect it and keep it clean.

    Troubleshooting

    ProblemPossible CauseCorrective Action
    The engine does not start, starts hard, or fails to keep running.
    1. The fuel tank is empty or the shutoff valve is closed.
    2. A spark-plug wire is loose or disconnected.
    3. A spark plug is pitted, fouled, or the gap is incorrect.
    4. The air cleaner is dirty.
    5. Dirt is in the fuel filter.
    6. Dirt, water, or stale fuel is in the fuel system.
    7. The gap between the safety-interlock switches is not correct.
    1. Fill the fuel tank with fuel and open the valve
    2. Install the wire on spark plug.
    3. Install a new, correctly gapped spark plug.
    4. Service the air-cleaner element.
    5. Replace the fuel filter.
    6. Contact an Authorized Service Dealer.
    7. Contact an Authorized Service Dealer.
    The engine loses power.
    1. The engine load is excessive.
    2. The air cleaner is dirty.
    3. The oil level in the crankcase is low.
    4. The cooling fins and air passages under the engine blower housing are plugged.
    5. A spark plug is pitted, fouled, or the gap is incorrect.
    6. The vent hole in the fuel cap is plugged.
    7. Dirt is in the fuel filter.
    8. Dirt, water, or stale fuel is in the fuel system.
    1. Reduce the ground speed.
    2. Service the air-cleaner element.
    3. Add oil to the crankcase.
    4. Remove the obstruction from the cooling fins and air passages.
    5. Install a new, correctly gapped spark plug.
    6. Clean or replace the fuel cap.
    7. Replace the fuel filter.
    8. Contact an Authorized Service Dealer.
    The engine overheats.
    1. The engine load is excessive.
    2. The oil level in the crankcase is low.
    3. The cooling fins and air passages under the engine blower housing are plugged.
    1. Reduce the ground speed.
    2. Add oil to the crankcase.
    3. Remove the obstruction from the cooling fins and air passages.
    The machine does not drive.
    1. The hydraulic-fluid reservoir is low.
    2. Air is in the hydraulic system.
    3. A pump-drive belt slips.
    4. A pump-drive belt idler spring is missing.
    5. The pump-bypass valves are open.
    1. Add hydraulic fluid to the reservoir.
    2. Bleed the air out the hydraulic system.
    3. Replace the pump drive belt.
    4. Replace the pump drive belt idler spring.
    5. Tighten the bypass valves. Torque to 12 to 15 N∙m (9 to 11 ft-lb).
    There is abnormal vibration.
    1. Cutting blade(s) is/are bent or unbalanced.
    2. A blade-mounting bolt is loose.
    3. The engine-mounting bolts are loose.
    4. An engine pulley, idler pulley, or blade pulley is loose.
    5. An engine pulley is damaged.
    6. A blade spindle is bent.
    1. Install new cutting blade(s).
    2. Tighten the blade-mounting bolt.
    3. Tighten the engine-mounting bolts.
    4. Tighten the appropriate pulley.
    5. Contact an Authorized Service Dealer.
    6. Contact an Authorized Service Dealer.
    The cutting height is uneven.
    1. Blade(s) are not sharp.
    2. Cutting blade(s) is/are bent.
    3. The mower deck is not level.
    4. The mower deck pitch is wrong.
    5. The underside of mower deck is dirty.
    6. The tire pressure is not correct.
    7. A blade spindle is bent.
    1. Sharpen the blade(s).
    2. Install new cutting blade(s).
    3. Level the mower deck side-to-side position.
    4. Adjust the front-to-rear pitch.
    5. Clean the underside of the mower deck.
    6. Adjust the tire pressure.
    7. Contact an Authorized Service Dealer.
    The blades do not rotate.
    1. A pump-drive belt is worn, loose or broken.
    2. A pump-drive belt is off pulley.
    3. A mower-deck belt is worn, loose or broken.
    4. A mower-deck belt is off the pulley.
    5. An idler spring is broken or missing.
    6. The electric clutch is out of adjustment.
    7. The clutch connector or wire is damaged.
    8. The electric clutch is damaged.
    9. The safety-interlock system prevents blade rotation.
    10. The PTO switch is faulty.
    1. Check the belt tension.
    2. Install the drive belt and check the adjusting shafts and belt guides for the correct position.
    3. Install the new deck belt.
    4. Install the deck pulley and check the idler pulley, idler arm and spring for the correct position and function.
    5. Replace the spring.
    6. Adjust the clutch air gap.
    7. Contact an Authorized Service Dealer.
    8. Contact an Authorized Service Dealer.
    9. Contact an Authorized Service Dealer.
    10. Contact an Authorized Service Dealer.
    The malfunction indicator light (MIL) comes on.
    1. The engine is too hot.
    2. There is old fuel in the fuel tank.
    3. The fuel-shutoff valve is not open completely.
    4. The air cleaner is dirty.
    5. The battery is not charged.
    6. Incorrect fuel filters are being used or the fuel filters are dirty.
    7. The connections to the sensors electronic control unit (ECU) and fuel injectors are not secured properly.
    8. There is low voltage from the battery.
    9. A fuse is blown.
    1. Turn the engine off and let it cool.
    2. Use new fuel.
    3. Open the fuel-shutoff valve.
    4. Make sure that the air cleaner and precleaner are clean. Replace them if necessary.
    5. Charge or replace the battery.
    6. Contact an Authorized Service Dealer.
    7. Contact an Authorized Service Dealer.
    8. Ensure that the battery is fully charged.
    9. Check and replace any blown fuses.

    Schematics

    Electrical Schematic

    g233853