Introduction

This rotary-blade, walk-behind lawn mower is intended to be used by residential homeowners or professional, hired operators. 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 and 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.

Warning

This product contains a chemical or chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

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

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.

This spark ignition system complies with Canadian ICES-002.

The enclosed Engine Owner's Manual is supplied for information regarding the US Environmental Protection Agency (EPA) and the California Emission Control Regulation of emission systems, maintenance, and warranty. Replacements may be ordered through the engine manufacturer.

Net Torque

The gross or net torque of this engine was laboratory rated by the engine manufacturer in accordance with the Society of Automotive Engineers (SAE) J1940. As configured to meet safety, emission, and operating requirements, the actual engine torque on this class of mower will be significantly lower.

Safety

This machine meets or exceeds the CPSC blade safety requirements for walk-behind rotary lawn mowers.

Improperly using or maintaining this lawn mower can result in injury. To reduce the potential for injury, comply with these safety instructions.

Toro designed and tested this lawn mower for to offer reasonably safe service; however, failure to comply with the following instructions may result in personal injury.

Warning

Engine exhaust contains carbon monoxide, an odorless, deadly poison that can kill you.

Do not run the engine indoors or in an enclosed area.

To ensure maximum safety, best performance, and to gain knowledge of the product, it is essential that you and any other operator of the lawn mower read and understand the contents of this manual before the engine is ever started. Pay particular attention to the safety alert symbol (Figure 2) which means Caution, Warning, or Danger. Read and understand the instruction because it has to do with safety. Failure to comply with the instruction may result in personal injury.

General Safety

This machine is capable of amputating hands and feet and of throwing objects. Failure to observe the following safety instructions could result in serious injury or death.

The following instructions have been adapted from the ANSI/OPEI B71.4-2012 standard.

Training

  • Read the Operator's Manual and other training material. If the operator(s) or mechanic(s) cannot read English, 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 themselves, other people, or property.

Preparation

  • Use only accessories and attachments approved by the manufacturer.

  • Wear appropriate clothing including safety glasses and ear protection.

  • Inspect the area where the equipment is to be used and remove all objects, such as rocks, toys, and wire, which can be thrown by the machine.

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

Safe Handling of Fuels

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

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

  • Use only an approved fuel container.

  • Never remove fuel cap or add fuel with the engine running.

  • Allow the engine to cool before refueling.

  • Never refuel the machine indoors.

  • Never store the machine or the fuel container where there is an open flame, spark, or pilot light, such as on a water heater or on other appliances.

  • Never fill containers inside a vehicle or on a truck or trailer bed with a plastic liner. Always place containers on the ground away from your vehicle before filling.

  • Remove the equipment from the truck or trailer and refuel it on the ground. If this is not possible, then refuel such equipment with 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 fuel is spilled on clothing, change clothing immediately.

  • Never overfill the fuel tank. Replace fuel cap and tighten securely.

Operation

  • Never run an engine in an enclosed area.

  • Operate the machine only in good light, keeping away from holes and hidden hazards.

  • Start the engine only from the operating position.

  • Be sure of your footing, especially when backing up. Walk, don't run. Never operate the machine on wet grass. 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 the machine near drop-offs.

  • Do not operate the machine without either the grass catcher or the guard in place.

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

  • Stop the machine on level ground and shut off the engine before leaving the operating position for any reason, including emptying the catcher or unclogging the chute.

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

  • Keep hands and feet away from the cutting units.

  • Look behind and down before backing up to be sure of a clear path.

  • Keep pets and bystanders away.

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

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

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

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

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

Maintenance and Storage

  • Stop the engine and disconnect the spark-plug wire. Wait for all movement to stop before adjusting, cleaning, or repairing the machine.

  • Clean grass and debris from the cutting unit, drive, muffler, and engine to help prevent fires. Clean up oil or fuel spills.

  • Let the engine cool before storing the machine, and do not store it near a flame.

  • Shut off the fuel while storing or transporting the machine. Do not store fuel near flames or drain fuel indoors.

  • Never allow untrained personnel to service the machine.

  • Remove the spark-plug wire before making any repairs.

  • Use care when checking the blade. Wrap the blade or wear gloves, and use caution when servicing the blade. Only replace the blade; never straighten or weld it.

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

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

  • 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.

Hauling

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

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

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

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 lost.

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Setup

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

Installing the Handle

Parts needed for this procedure:

Handle1
Hex-head-flange bolt (5/16 x 1-1/2 inches)2
Carriage bolt (5/16 x 1-1/2 inches)2
Flange nut (5/16 inch)4
  1. Remove the cable guard from the handle (Figure 3) by removing the 2 carriage bolts and 2 locknuts that hold the cable guard to the handle.

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    Note: Save the guard, the carriage bolts, and the locknuts so that you can install it onto the handle later in this procedure.

  2. Install the handle ends onto the mower housing with 2 hex-head-flange bolts (5/16 x 1-1/2 inches) and 2 flange nuts (5/16 inch) as shown in Figure 3.

  3. Set the machine to the desired cutting height; refer to Adjusting the Cutting Height.

  4. Route the control cables between the deck and the handle to protect the cables from being damaged (Figure 4).

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  5. Stand in the operating position to determine the handle height that is most comfortable for you (Figure 5).

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  6. Secure the handle onto the handle brackets at your desired handle height with 2 carriage bolts (5/16 x 1-1/2 inches) and 2 flange nuts (5/16 inch) as shown in Figure 6.

    Important: Ensure that the bolt heads are on the inside of the handle and the nuts are on the outside of the handle.

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  7. Position the cable guard onto the handle with the cable(s) inside the guard, and secure the guard to the handle with the 2 carriage bolts and the 2 locknuts that you previously removed (Figure 3).

    Important: Ensure that you do not pinch the cable(s) to the handle when you install the cable guards onto the handle.

Filling the Crankcase with Oil

The engine crankcase is shipped without oil. Before starting the engine, fill the crankcase with oil. The engine crankcase can hold 0.65 L (22 oz) of oil. Use only high-quality SAE 10W-30 weight detergent oil that has the American Petroleum Institute (API) service classification SH, SJ, or equivalent.

Before each use, ensure that the oil level is between the lower-limit and upper-limit marks on the dipstick (Figure 7).

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Note: When the crankcase is empty, pour about 3/4 of the crankcase capacity of oil in the crankcase, then follow the procedure in this section.

  1. Move the machine onto a level surface.

  2. Clean around the dipstick (Figure 7).

  3. Remove the dipstick by rotating the cap counterclockwise and pulling it out.

  4. Wipe the dipstick clean with a clean cloth.

  5. Insert the dipstick into the filler neck (but do not rotate the cap clockwise to secure it), then remove the dipstick.

  6. Read the oil level on the dipstick.

    • If the oil level is below the lower-limit mark on the dipstick, slowly pour a small amount of oil into the oil-fill tube, wait 3 minutes, and repeat steps 4 through 6 until the oil level is at the Full mark on the dipstick.

    • If the oil level is above the upper-limit mark on the dipstick, drain the excess oil until the oil level on the dipstick is at the Full mark. Refer to Changing the Engine Oil.

      Important: If the oil level in the crankcase is too low or too high and you run the engine, you may damage the engine.

  7. Insert the dipstick into the filler neck and rotate the cap clockwise until it is tight.

Adjusting the Self-Propel Drive

Important: You must adjust the self-propel-drive cable before you operate the machine for the first time. Refer to Adjusting the Self-Propel Drive.

Assembling the Grass Bag

  1. Slip the grass bag over the frame as shown in Figure 8.

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    Note: Do not slip the bag over the handle (Figure 8).

  2. Hook the bottom channel of the bag onto the bottom of the frame (Figure 9).

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  3. Hook the top and side channels of the bag onto the top and sides of the frame, respectively (Figure 9).

Product Overview

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Operation

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

Each time before you mow, ensure that the self-propel drive and the blade-control bar operate properly. When you release the blade-control bar, the blade and the self-propel drive should stop. If they do not, contact an Authorized Service Dealer.

Caution

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

Wear hearing protection when operating this machine.

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Checking the Engine-Oil Level

Maintenance Service IntervalMaintenance Procedure
Before each use or daily
  • Check the engine-oil level.
  • Before you use the machine, ensure that the oil level is between the lower-limit and the upper-limit marks as shown on the dipstick (Figure 12).

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    If the oil level is below the lower-limit mark, add oil. Refer to Filling the Crankcase with Oil.

    Filling the Fuel Tank

    Danger

    Gasoline is extremely flammable and explosive. A fire or explosion from gasoline can burn you and others.

    • To prevent a static charge from igniting the gasoline, place the container and/or machine directly on the ground before filling, not in a vehicle or on an object.

    • Fill the tank outdoors when the engine is cold. Wipe up spills.

    • Do not handle gasoline when smoking or around an open flame or sparks.

    • Store gasoline in an approved fuel container, out of the reach of children.

    • 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).

    • Oxygenated fuel with up to 10% ethanol or 15% MTBE by volume is acceptable.

    • 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 in fuel containers over the winter unless you use a fuel stabilizer.

    • Do not add oil to gasoline.

    Important: To reduce starting problems, add fuel stabilizer/conditioner to fresh fuel as directed by the fuel-stabilizer manufacturer.

    Note: The capacity of the fuel tank is 3.76 L (0.99 US gallon).

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    Adjusting the Cutting Height

    You can change the cutting height at each wheel by adjusting a cutting-height lever. Cutting heights are 25 mm (1 inch), 38 mm (1-1/2 inches), 51 mm (2 inches), 64 mm (2-1/2 inches), 76 mm (3 inches), 89 mm (3-1/2 inches), 102 mm (4 inches), 114 mm (4-1/2 inches).

    Danger

    Adjusting the cutting-height levers could bring your hands into contact with a moving blade and result in serious injury.

    • Stop the engine and wait for all movement to stop before adjusting the cutting height.

    • Do not put your fingers under the housing when adjusting the cutting height.

    1. Pull the cutting-height lever toward the wheel (Figure 14) and move the lever to the desired setting.

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    2. Release the cutting-height lever and seat it securely in the notch.

    3. Adjust all the wheels to the same cutting-height setting.

    Starting the Engine

    1. Connect the spark-plug wire to the spark plug.

    2. Open the fuel valve by moving the fuel-valve lever to the right (Figure 15).

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    3. Move the throttle-control lever to the CHOKE position (Figure 16).

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      Note: Do not use the choke when the engine is warm.

    4. Pull the starter handle lightly until you feel resistance, then pull it sharply.

      Note: Allow the rope to return slowly to the rope guide on the handle.

    5. When the engine starts, move the throttle-control lever to the Fast position (Figure 16).

    Shutting Off the Engine

    Release the blade-control bar and move the throttle-control lever to the STOP position (Figure 16).

    Note: Close the fuel valve by moving the fuel-valve lever (Figure 15) to the left if you will not be starting the engine soon afterward.

    Operating the Self-Propel Drive and Engaging the Cutting Blade

    This machine is equipped with a blade-brake clutch.

    Important: To ensure that the blade-brake clutch is working properly, refer to Checking the Blade-Brake Clutch.

    The machine has 3 ground speeds: 1 (slow), 2 (medium), and 3 (fast). The self-propel-drive lever is located below and behind the fuel tank (Figure 17).

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    • To operate the self-propel drive without engaging the blade: Raise the blade-control bar to the handle (Figure 18).

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    • To operate the self-propel drive and engage the blade: Move the blade-control bar all the way to the right and raise it to the handle (Figure 19).

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    • To disengage the self-propel drive and the blade: Release the blade-control bar.

    Note: You can vary the ground speed by increasing or decreasing the distance between the blade-control bar and the handle. Lower the bar to decrease the ground speed when you are making a turn or if the machine is moving too fast for you. If you lower the bar too far, the machine stops self-propelling. Squeeze the bar closer to the handle to increase the ground speed. When you hold the bar tight against the handle, the machine self-propels at the maximum ground speed. Move the self-propel-drive lever to the NEUTRAL position when you use the machine for trimming.

    Checking the Blade-Brake Clutch

    Check the blade-control bar before each use to ensure that the blade-brake clutch is operating properly.

    Checking with the Grass Bag

    1. Install the empty grass bag on the machine.

    2. Start the engine.

    3. Engage the blade.

      Note: The bag should begin to inflate, indicating that the blade is engaged and rotating.

    4. Release the blade-control bar.

      Note: If the bag does not immediately deflate, the blade is still rotating. The blade-brake clutch may be deteriorating and, if ignored, could result in an unsafe operating condition. Have the machine inspected and serviced by an Authorized Service Dealer.

    5. Stop the engine and wait for all moving parts to stop.

    Checking without the Grass Bag

    1. Move the machine onto a paved surface in a non-windy area.

    2. Set all 4 wheels to the 76 mm (3 inch) cutting-height setting; refer to Adjusting the Cutting Height.

    3. Take a half sheet of newspaper and crumple it into a ball small enough to go under the machine housing (about 76 mm or 3 inches in diameter).

    4. Place the newspaper ball about 13 cm (5 inches) in front of the machine (Figure 20).

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    5. Start the engine.

    6. Engage the blade.

    7. Release the blade-control bar.

    8. Immediately push the machine over the newspaper ball.

    9. Stop the engine and wait for all moving parts to stop.

    10. Go to the front of the machine and check the newspaper ball.

      Note: If the newspaper ball did not go under the machine, repeat steps 4 through 10.

      Note: If the newspaper is unravelled or shredded, the blade did not stop properly, which could result in an unsafe operating condition. Contact an Authorized Service Dealer.

    Recycling the Clippings

    This machine comes from the factory ready to recycle grass and leaf clippings back into the lawn. To prepare the machine to recycle:

    • If the grass bag is on the machine, remove it; refer to Removing the Grass Bag.

    • If the rear-discharge plug is not installed, grip it by the handle, raise the rear door, and insert it into the rear-discharge chute until the latch locks into place (Figure 21).

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    Warning

    Operating the machine to recycle lawn clippings without the plug in place allows objects to be thrown toward you or bystanders. Also, contact with the blades could occur. Thrown objects or blade contact can cause serious injury or death.

    Ensure that the rear-discharge plug is in place before you recycle the clippings. Never engage the blades without either the rear-discharge plug or the grass bag installed on the machine.

    Bagging the Clippings

    Use the grass bag when you want to collect grass and leaf clippings from the lawn.

    Warning

    A worn grass bag could allow small stones and other similar debris to be thrown toward you or bystanders, resulting in serious personal injury or death.

    Check the grass bag frequently. If it is damaged, install a new Toro replacement bag.

    Warning

    The blades are sharp; contacting the blades can result in serious personal injury.

    Stop the engine and wait for all moving parts to stop before leaving the operating position.

    Installing the Grass Bag

    1. Stop the engine and wait for all moving parts to stop.

    2. Raise and hold up the rear door (Figure 22).

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    3. Remove the rear-discharge plug by pushing in the latch with your thumb and pulling the plug out from the machine (Figure 21).

    4. Install the bag-rod ends into the notches at the base of the handle, and rock the bag back and forth to ensure that the bag-rod ends are seated at the bottom of both notches (Figure 22).

    5. Lower the rear door until it rests on the grass bag.

    Removing the Grass Bag

    Danger

    The machine can throw grass clippings and other objects through an opening in the mower housing. Objects thrown with enough force could cause serious personal injury or death to you or to bystanders.

    • Never remove the grass bag and then start the engine without the discharge plug installed on the machine.

    • Never open the rear door on the machine when the engine is running.

    1. Stop the engine and wait for all moving parts to stop.

    2. Raise the rear door.

    3. Remove the bag rod on the grass bag from the notches at the base of the handle (Figure 22).

    4. Install the discharge plug; refer to Recycling the Clippings.

    5. Lower the rear door.

    Operating Tips

    General Tips

    • Review the safety instructions and read this manual carefully before operating the machine.

    • Clear the area of sticks, stones, wire, branches, and other debris that the blade could hit and throw.

    • Keep everyone, especially children and pets, away from the area of operation.

    • Avoid striking trees, walls, curbs, or other solid objects. Never deliberately mow over any object.

    • If the machine strikes an object or starts to vibrate, immediately stop the engine, disconnect the wire from the spark plug, and examine the machine for damage.

    • Maintain a sharp blade throughout the cutting season. Periodically file down nicks on the blade.

    • Replace the blade when necessary with an original Toro replacement blade.

    • Mow only dry grass or leaves. Wet grass and leaves tend to clump on the yard and can cause the machine to plug or the engine to stall.

      Warning

      Wet grass or leaves can cause serious injury if you slip and contact the blade.

      Mow only in dry conditions.

    • Clean under the machine after each mowing; refer to Cleaning under the Machine.

    • Keep the engine in good running condition.

    • Clean the air filter frequently. Mulching stirs up more clippings and dust which clogs the air filter and reduces engine performance.

    • Set the engine speed to the fastest position for the best cutting results.

      Warning

      Operating a machine with its engine running at a speed greater than the factory setting can cause the machine to throw a part of the blade or engine at you or bystanders, resulting in serious personal injury or death.

      • Do not change the engine speed setting.

      • If you suspect the engine speed is faster than normal, contact an Authorized Service Dealer.

    Cutting Grass

    • Grass grows at different rates at different times of the year. In the summer heat, it is best to cut grass at the 64 mm (2-1/2 inch), 76 mm (3 inch), or 89 mm (3-1/2 inch) cutting-height settings. Cut only about a third of the grass blade at a time. Do not cut below the 64 mm (2-1/2 inch) setting unless the grass is sparse or it is late fall when grass growth begins to slow down.

    • When cutting grass over 15 cm (6 inches) tall, first mow at the highest cutting height setting and walk slower; then mow again at a lower setting for the best lawn appearance. If the grass is too long and the leaves clump on top of the lawn, the machine may plug and cause the engine to stall.

    • Alternate the mowing direction. This helps disperse the clippings over the lawn for even fertilization.

    If the finished lawn appearance is unsatisfactory, try 1 or more of the following:

    • Sharpen the blade.

    • Walk at a slower pace while mowing.

    • Raise the cutting height on your machine.

    • Cut the grass more frequently.

    • Overlap cutting swaths instead of cutting a full swath with each pass.

    Cutting Leaves

    • After cutting the lawn, ensure that half of the lawn shows through the cut leaf cover. You may need to make more than a single pass over the leaves.

    • For light leaf coverage, set all the wheels at the same cutting height setting.

    • Slow down your mowing speed if the machine does not cut the leaves finely enough.

    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 20 hours
  • Change the engine oil.
  • Before each use or daily
  • Check the engine-oil level.
  • Inspect the air cleaner elements.
  • Inspect the mower blades for wear or damage.
  • Inspect the accelerator for wear or damage.
  • Remove grass clippings and dirt from under the housing.
  • Check the stopping time of the blade brake. The blade must stop within 3 seconds of releasing the blade-control bar; if it does not, contact an Authorized Service Dealer for repair.
  • Every 40 hours
  • Clean the wheels and gears.
  • Every 50 hours
  • Clean the air filter elements.Clean them more frequently in dusty operating conditions.
  • Sharpen or replace the blade.Maintain it more frequently if the edge dulls quickly in rough or in sandy conditions.
  • Remove grass clippings and debris from under the belt cover.
  • Clean the blade-brake-clutch shield.
  • Have an authorized engine servicing dealer check the blade-brake clutch operation.
  • Every 100 hours
  • Change the engine oil.
  • Inspect, clean, and adjust the spark plug gap; replace the spark plug if necessary.
  • Every 200 hours
  • Replace the air cleaner elements.Replace them more frequently in dusty operating conditions.
  • Have an authorized engine servicing dealer check for leaks in the fuel system and/or a deteriorating fuel hose. Replace parts if necessary.
  • Have an authorized engine servicing dealer check and adjust the engine idle speed, check and adjust the valve clearance, and clean the fuel tank and the fuel filter.
  • Important: Refer to your engine owner's manual for additional maintenance procedures.

    Caution

    If you leave the wire on the spark plug, someone could accidently start the engine and seriously injure you or other bystanders.

    Disconnect the wire from the spark plug before you do any maintenance. Set the wire aside so that it does not accidently contact the spark plug.

    Engine Maintenance

    Servicing the Air Cleaner

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Inspect the air cleaner elements.
  • Every 50 hours
  • Clean the air filter elements.Clean them more frequently in dusty operating conditions.
  • Every 200 hours
  • Replace the air cleaner elements.Replace them more frequently in dusty operating conditions.
  • Important: Do not operate the engine without the air filter assembly in place; otherwise, extreme engine damage will occur.

    1. Stop the engine and wait for all moving parts to stop.

    2. Disconnect the wire from the spark plug.

    3. Remove the 2 nuts that secure the cover (Figure 23).

    4. Remove the cover.

      Note: Be careful to prevent dirt and debris from falling into the base of the air cleaner.

    5. Remove the foam and paper elements from the base of the air cleaner (Figure 23).

    6. Remove the foam element from the paper element (Figure 23).

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    7. Inspect the foam and paper elements, and replace them if they are damaged or excessively dirty.

    8. If the paper element is excessively dirty, replace it.

      Note: Never try to brush dirt off the paper element; brushing forces the dirt into the fibers.

    9. Clean the foam element in warm, soapy water or in a nonflammable solvent.

      Note: Do not use gasoline to clean the foam element because it could create a risk of fire or explosion.

    10. Rinse and dry the foam element thoroughly.

    11. Dip the foam element in clean engine oil, then squeeze out the excess oil.

      Note: Excess oil in the foam element restricts the air flow through the element and may reach the paper filter and clog it.

    12. Wipe dirt from both the base and the cover of the air cleaner with a moist rag.

      Note: Be careful to prevent dirt and debris from entering the air duct leading to the carburetor.

    13. Install the air cleaner elements and ensure that they are properly in place.

    14. Securely install the cover with the 2 nuts that you removed in step 3.

    Changing the Engine Oil

    Maintenance Service IntervalMaintenance Procedure
    After the first 20 hours
  • Change the engine oil.
  • Every 100 hours
  • Change the engine oil.
    1. Run the engine to warm the engine oil.

      Note: Warm oil flows better and carries more contaminants.

      Warning

      Oil may be hot after engine has been run, and contact with hot oil can cause severe personal injury.

      Avoid contacting the hot engine oil when you drain it.

    2. Stop the engine and wait for all moving parts to stop.

    3. Disconnect the wire from the spark plug.

    4. Close the fuel valve by moving the fuel-valve lever to the left (Figure 15).

    5. Drain the gasoline from the fuel tank.

    6. Place a suitable drain pan under the dipstick/oil drain.

    7. Clean around the dipstick.

    8. Remove the dipstick by rotating the cap counterclockwise and pulling it out.

    9. Tip the machine onto its right side (air filter up) to drain the oil into the drain pan.

    10. After draining the oil, return the machine to the operating position.

    11. Fill the crankcase to the upper-limit mark on the dipstick with fresh oil; refer to Filling the Crankcase with Oil.

    12. Insert the dipstick into the filler neck and rotate the cap clockwise until it is tight.

    13. Wipe up any spilled oil.

    14. Recycle the used oil according to local codes.

    Servicing the Spark Plug

    Maintenance Service IntervalMaintenance Procedure
    Every 100 hours
  • Inspect, clean, and adjust the spark plug gap; replace the spark plug if necessary.
  • Use an NGK BPR5ES spark plug or equivalent.

    1. Stop the engine and wait for all moving parts to stop.

    2. Disconnect the wire from the spark plug.

    3. Clean around the spark plug.

    4. Remove the spark plug from the cylinder head.

      Important: Replace a cracked, fouled, or dirty spark plug. Do not clean the electrodes because grit entering the cylinder can damage the engine.

    5. Set the gap on the plug to 0.76 mm (0.030 inch); refer to Figure 24.

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    6. Carefully install the spark plug by hand (to avoid cross threading) until it is hand tight.

    7. Tighten the spark plug to 23 N-m (2.3 kgf-m, 17 ft-lb).

      Important: A loose spark plug can become very hot and can damage the engine; overtightening a spark plug may damage the threads in the cylinder head.

    8. Connect the wire to the spark plug.

    Drive System Maintenance

    Adjusting the Self-Propel Drive

    If the machine is new, does not self-propel, or it tends to creep forward, adjust the drive cable.

    1. Move the machine outside and onto a paved surface near a solid wall to safely prevent the machine from moving forward while the engine is running.

    2. Position the machine with the front tires against the wall.

      Note: Ensure that the area is well ventilated and clear of debris that could be thrown by the machine.

    3. Shift the transmission to third gear.

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

    5. Pull the self-propel-drive bar to the handle.

      Note: The wheels should start to turn as the self-propel-drive bar just touches the handle.

    6. Shut off the engine.

    7. If you must adjust the machine, do the following:

      • If the wheels do not spin when you engage the self-propel-drive bar, the traction belt is too loose. Rotate the wheel-drive-control knob (Figure 25) clockwise 1 turn and repeat steps 4 through 6.

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      • If the wheels spin before you fully engage the self-propel-drive bar, the traction belt is too tight. Rotate the wheel-drive-control knob (Figure 25) counterclockwise 1 turn and repeat steps 4 through 6.

    8. For a new traction belt, rotate the drive cable adjustment knob clockwise 1 additional turn to allow for the normal stretching of the belt during the break-in period.

      Note: You can skip this step if you are adjusting a used belt.

    Blade Maintenance

    Maintaining the Blade

    Always mow with a sharp blade. A sharp blade cuts cleanly and without tearing or shredding the grass blades.

    1. Stop the engine and wait for all moving parts to stop.

    2. Disconnect the wire from the spark plug.

    3. Close the fuel valve by moving the fuel-valve lever to the left (Figure 15).

    4. Drain the gasoline from the fuel tank.

    5. Tip the machine onto its right side (air cleaner up) as shown in Figure 26.

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    Inspecting the Blade

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Inspect the mower blades for wear or damage.
  • Carefully examine the blade for sharpness and wear, especially where the flat and the curved parts meet (Figure 27A). Because sand and abrasive material can wear away the metal that connects the flat and curved parts of the blade, check the blade before using the machine. If you notice a slot or wear (Figure 27B and Figure 27C), replace the blade; refer to Removing the Blade.

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    Note: For the best performance, install a new blade before the mowing season begins. During the year, file down any small nicks to maintain the cutting edge.

    Danger

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

    • Inspect the blade periodically for wear or damage.

    • Replace a worn or damaged blade.

    Inspecting the Accelerator

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Inspect the accelerator for wear or damage.
  • Carefully examine the accelerator for excessive wear (Figure 28). Because sand and abrasive material can wear away the metal (especially in the area shown as item 2 in Figure 28), check the accelerator before using the machine. If you notice that a tab on the accelerator has been worn down to a sharp edge or there is a crack, replace the accelerator; refer to Removing the Blade.

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    Warning

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

    • Inspect the accelerator periodically for wear or damage.

    • Replace a worn or damaged accelerator.

    Removing the Blade

    1. Grasp the end of the blade using a rag or a thickly padded glove.

    2. Remove the blade nuts, the accelerator, and the blade (Figure 27).

    Sharpening the Blade

    Maintenance Service IntervalMaintenance Procedure
    Every 50 hours
  • Sharpen or replace the blade.Maintain it more frequently if the edge dulls quickly in rough or in sandy conditions.
  • File the top side of the blade to maintain its original cutting angle (Figure 29A) and inner cutting edge radius (Figure 29B). The blade will remain balanced if you remove the same amount of material from both cutting edges.

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    Balancing the Blade

    1. Check the balance of the blade by placing the center hole of the blade over a nail or screwdriver shank clamped horizontally in a vise (Figure 30).

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      Note: You can also check the balance using a commercially manufactured blade balancer.

    2. If either end of the blade rotates downward, file that end (not the cutting edge or the end near the cutting edge) until neither end of the blade drops.

    Installing the Blade

    1. Install a sharp, balanced Toro blade, the accelerator, and the blade nuts. The sail of the blade must point toward the top of the mower housing for proper installation.

      Note: Torque the blade nuts to 20 to 37 N-m (15 to 27 ft-lb).

      Warning

      Operating the machine without the accelerator in place can cause the blade to flex, bend, or break, resulting in serious injury or death to you or to bystanders.

      Do not operate the machine without the accelerator in place.

    2. Return the machine to the operating position.

    Adjusting the Blade-Brake Cable

    The blade-brake cable is adjusted at the factory; you do not need to adjust it unless you are replacing the cable or the blade-brake belt. If you need to replace the cable, replace both the cable and the belt at the same time.

    1. Install a new blade-brake belt and assemble the machine except for the 2 belt covers on the top of the mower housing.

    2. Install the new blade-brake cable, but do not tighten the cable clamp on the top of the mower housing (Figure 31).

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    3. Insert a 8 mm (5/16-inch) thick spacer between the blade-brake-control lever and the control bracket on the handle (Figure 32).

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      Important: Replacing the cable without replacing the belt may cause the gap between the blade-brake-control lever and the control bracket to be incorrect. If the gap is less than 8 mm (5/16 inch), the blade brake will not function properly and the blade will not stop within 3 seconds. If the gap is greater than 8 mm (5/16 inch), the belt will not properly drive the blade.

    4. Pull the cable tight to remove the slack (but do not stretch the cable spring) and tighten the cable clamp screw to lock the adjustment in place.

    5. Remove the spacer.

    6. Ensure that there is slack in the cable and a gap between the blade-brake-control lever and the control bracket when the self-propel-drive bar is not engaged.

    7. Install the 2 belt covers on the top of the mower housing.

      Important: After installing the new blade-brake belt and blade-brake cable, check that the blade-brake clutch is operating properly and that the blade stops within 3 seconds; refer to Checking the Blade-Brake Clutch.

    Cleaning

    Cleaning under the Machine

    To ensure the best performance, keep the underside of the machine clean. Be especially careful to keep the kickers free of debris (Figure 33).

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    Washing Method

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Remove grass clippings and dirt from under the housing.
  • Warning

    The machine may dislodge material from under the machine.

    • Wear eye protection.

    • Stay in the operating position (behind the handle) while the engine is running.

    • Do not allow bystanders in the area.

    1. Position the machine on a flat concrete or asphalt surface near a garden hose.

    2. Start the engine.

    3. Hold the running garden hose at handle level and direct the water to flow on the ground just in front of the right rear tire (Figure 34).

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      Note: The blade will draw in water and wash out the clippings. Let the water run until you no longer see clippings being washed out from under the machine.

    4. Stop the engine and wait for all moving parts to stop.

    5. Turn off the water.

    6. Start the machine and let it run for a few minutes to dry out the underside of the machine.

    Scraping Method

    If washing does not remove all debris from under the machine, scrape it clean.

    1. Disconnect the wire from the spark plug.

    2. Drain the gasoline from the fuel tank.

      Warning

      Tipping the machine may cause the gasoline to leak from the carburetor or the fuel tank. Gasoline is extremely flammable, highly explosive, and, under certain conditions, can cause personal injury or property damage.

      Avoid fuel spills by running the engine dry or by removing the gasoline with a hand pump; never siphon.

    3. Tip the machine onto its right side (air cleaner up).

    4. Remove the dirt and grass clippings with a hardwood scraper. Avoid burrs and sharp edges.

    5. Return the machine to the operating position.

    6. Connect the wire to the spark plug.

    Cleaning under the Belt Cover

    Maintenance Service IntervalMaintenance Procedure
    Every 50 hours
  • Remove grass clippings and debris from under the belt cover.
    1. Stop the engine and wait for all moving parts to stop.

    2. Disconnect the wire from the spark plug.

    3. Remove the belt cover (Figure 35) from the mower housing.

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    4. Lift off the cover and brush out all the debris around the belt area.

    5. Install the belt cover.

    6. Connect the wire to the spark plug.

    Cleaning the Blade-Brake-Clutch Shield

    Maintenance Service IntervalMaintenance Procedure
    Every 50 hours
  • Clean the blade-brake-clutch shield.
  • Clean the blade-brake-clutch shield to ensure the best performance and to prevent parts from degrading. Clean the blade-brake-clutch shield when you sharpen the blade, because you need to remove the blade in order to remove the blade-brake-clutch shield.

    1. Stop the engine and wait for all moving parts to stop.

    2. Disconnect the wire from the spark plug.

    3. Close the fuel valve by moving the fuel-valve lever to the left (Figure 15).

    4. Drain the gasoline from the fuel tank.

    5. Tip the machine onto its right side (air filter up).

      Warning

      Tipping the machine may cause the fuel to leak from the carburetor or the fuel tank. Gasoline is extremely flammable, highly explosive, and, under certain conditions, can cause personal injury or property damage.

      Avoid fuel spills by emptying the fuel tank as directed; never siphon.

    6. Remove the 2 blade nuts, the accelerator, and the blade (Figure 36).

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    7. Remove the screws that secure the blade-brake-clutch shield to the mower housing (Figure 36).

    8. Remove the blade-brake-clutch shield and brush or blow all the debris from under the shield and around the blade-brake-clutch.

    9. Tighten the screws to secure the blade-brake-clutch shield to the housing.

    10. Install the blade, the accelerator, and the 2 blade nuts.

    11. Return the machine to the operating position.

    Cleaning the Wheels

    Maintenance Service IntervalMaintenance Procedure
    Every 40 hours
  • Clean the wheels and gears.
    1. Remove the rear wheels and clean any debris from the wheel-gear area.

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    2. After cleaning, apply a small amount of anti-seize to the gears.

    Note: If you operate the machine in extreme conditions, cleaning the wheels more frequently than recommended will increase gear life.

    Note: To prevent damage to the bearing seals, do not use a high-pressure water spray on the bearings.

    Storage

    To prepare the machine for off-season storage, perform the recommended maintenance procedures; refer to .

    Store the machine in a cool, clean, dry place. Cover the machine to keep it clean and protected.

    Preparing the Fuel System

    Warning

    Gasoline can vaporize if you store it over long periods of time and explode if it comes into contact with an open flame.

    • Do not store gasoline over long periods of time.

    • Do not store the machine with gasoline in the fuel tank or the carburetor in an enclosure with an open flame. (For example, a furnace or a water heater pilot light.)

    • Allow the engine to cool before storing it in any enclosure.

    Empty the gasoline from the fuel tank when mowing for the last time before storing the machine.

    1. Run the engine until it shuts off from running out of gasoline.

    2. Choke the engine and start it again.

    3. Allow the engine to run until it shuts off. When you can no longer start the engine, it is sufficiently dry.

    Preparing the Engine

    1. While the engine is still warm, change the oil in the crankcase; refer to Changing the Engine Oil.

    2. Remove the spark plug.

    3. Using an oil can, add about 30 ml (1 oz) of engine oil to the engine crankcase through the spark-plug hole.

    4. Slowly rotate the engine several times by pulling the recoil-start handle to distribute the oil throughout the engine crankcase.

    5. Install the spark plug but do not connect the wire to the spark plug.

    General Information

    1. Clean under the machine; refer to Cleaning under the Machine.

    2. Clean any dirt and chaff from the cylinder, cylinder head fins, and blower housing.

    3. Remove grass clippings, dirt, and grime from the external parts of the engine, the shrouding, and the top of the mower housing.

    4. Check the condition of the blade; refer to Inspecting the Blade.

    5. Clean the blade-brake-clutch shield; refer to Cleaning the Blade-Brake-Clutch Shield.

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

    7. Tighten all nuts, bolts, and screws.

    8. Touch up all rusted or chipped paint surfaces with paint available from an Authorized Service Dealer.

    Removing the Machine from Storage

    1. Check and tighten all fasteners.

    2. Remove the spark plug and spin the engine rapidly using the starter to blow out the excess oil from the cylinder.

    3. Clean the spark plug or replace it if it is cracked, broken, or if the electrodes are worn.

    4. Install the spark plug; refer to Servicing the Spark Plug.

    5. Perform any needed maintenance procedures; refer to .

    6. Fill the fuel in the fuel tank with fresh gasoline.

    7. Check the engine-oil level.

    8. Connect the wire to the spark plug.

    Troubleshooting

    ProblemPossible CauseCorrective Action
    The engine does not start.
    1. The fuel tank is empty or the fuel system contains stale fuel.
    2. The throttle lever is not in the Choke position.
    3. The wire is not connected to the spark plug.
    4. The spark plug is pitted, fouled, or the gap is incorrect.
    1. Drain and/or fill the fuel tank with fresh gasoline. If the problem persists, contact an Authorized Service Dealer.
    2. Move the throttle lever to the Choke position.
    3. Connect the wire to the spark plug.
    4. Check the spark plug and adjust the gap if necessary. Replace the spark plug if it is pitted, fouled, or cracked.
    The engine starts hard or loses power.
    1. The fuel tank contains stale fuel.
    2. The air filter element is dirty and is restricting the air flow.
    3. The underside of the mower housing contains clippings and debris.
    4. The spark plug is pitted, fouled, or the gap is incorrect.
    5. The engine oil level is low or the oil is dirty.
    1. Drain and fill the fuel tank with fresh gasoline.
    2. Clean the air filter pre-cleaner and/or replace the paper air filter.
    3. Clean under the mower housing.
    4. Check the spark plug and adjust the gap if necessary. Replace the spark plug if it is pitted, fouled, or cracked.
    5. Check the engine oil. Change the oil if it is dirty or add oil if it is low.
    The engine runs rough.
    1. The wire is not connected to the spark plug.
    2. The spark plug is pitted, fouled, or the gap is incorrect.
    3. The throttle lever is not in the Fast position.
    4. The air filter element is dirty and is restricting the air flow.
    1. Connect the wire to the spark plug.
    2. Check the spark plug and adjust the gap if necessary. Replace the spark plug if it is pitted, fouled, or cracked.
    3. Move the throttle lever to the Fast position.
    4. Clean the air filter pre-cleaner and/or replace the paper air filter.
    The machine or engine vibrates excessively.
    1. The blade is bent or is out of balance.
    2. The blade mounting nuts are loose.
    3. The underside of the machine contains clippings and debris.
    4. The engine mounting bolts are loose.
    1. Balance the blade. If the blade is bent, replace it.
    2. Tighten the blade mounting nuts.
    3. Clean the underside of the machine.
    4. Tighten the engine mounting bolts.
    The is an uneven cutting pattern.
    1. All 4 wheels are not at the same height.
    2. The blade is dull.
    3. You are mowing in the same pattern repeatedly.
    4. The underside of the machine contains clippings and debris.
    1. Place all 4 wheels at the same height.
    2. Sharpen and balance the blade.
    3. Change the mowing pattern.
    4. Clean the underside of the machine.
    The discharge chute plugs up.
    1. The throttle lever is not in the Fast position.
    2. The cutting height is too low.
    3. You are mowing too fast.
    4. The grass is wet.
    5. The underside of the machine contains clippings and debris.
    1. Move the throttle lever to the Fast position.
    2. Raise the cutting height.
    3. Slow down.
    4. Allow the grass to dry before mowing.
    5. Clean the underside of the machine.
    The machine does not self-propel.
    1. The self-propel drive cable is out of adjustment or is damaged.
    2. There is debris under the belt cover.
    1. Adjust the self-propel drive cable. Replace the cable if necessary.
    2. Clean the debris from under the belt cover.