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.

Important: With your mobile device, you can scan the QR code on the serial number decal (if equipped) to access warranty, parts, and other product information.

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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.

Gross or 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 or J2723. As configured to meet safety, emission, and operating requirements, the actual engine torque on this class of mower will be significantly lower. 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.

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

This machine has been designed in accordance with ANSI B71.1-2012.

General Safety

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

Using this product for purposes other than its intended use could prove dangerous to you and bystanders.

  • Read, understand, and follow the instructions and warnings in this Operator’s Manual and on the machine and attachments before starting the engine.

  • Do not put your hands or feet near moving parts of or under the machine. Keep clear of any discharge opening.

  • Do not operate the machine without all guards and other safety protective devices in place and working on the machine.

  • Keep bystanders and children a safe distance away from the machine. Do not allow children to operate the machine. Allow only people who are responsible, trained, familiar with the instructions, and physically capable to operate the machine.

  • Stop the machine, shut off the engine, and wait for all moving parts to stop before servicing, fueling, or unclogging the machine.

Improperly using or maintaining this machine can result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety-alert symbol (Graphic), which means Caution, Warning, or Danger—personal safety instruction. Failure to comply with these instructions may result in personal injury or death.

You can find additional safety information where needed throughout this manual.

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.

decaloemmarkt
decal94-8072
decal116-7583
decal133-8062
decal125-8404
decal130-6722
decal130-9670

Setup

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

Installing the Handle

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Installing the Cables into the Cable Guards

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Installing the Recoil-Starter Rope into the Rope Guide

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Filling the Engine with 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.

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Assembling the Grass Bag

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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.

Product Overview

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Operation

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

Before Operation

Before Operation Safety

General Safety

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

  • Check that all guards and safety devices, such as deflectors and/or grass catcher, are in place and working properly.

  • Always inspect the machine to ensure that the blades, blade bolts, and cutting assembly are not worn or damaged.

  • Inspect the area where you will use the machine, and remove all objects that could interfere with the operation of the machine or that the machine could throw.

  • Adjusting the cutting height may bring you into contact with the moving blade, causing serious injury.

    • Shut off the engine, remove the ignition key (electric-start model only), and wait for all moving parts to stop.

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

Fuel Safety

  • Fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and others and can damage property.

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

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

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

    • Do not remove the fuel cap or add fuel to the tank while the engine is running or hot.

    • If you spill fuel, do not attempt to start the engine. Avoid creating a source of ignition until the fuel vapors have dissipated.

    • Store fuel in an approved container and keep it out of the reach of children.

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

    • Avoid prolonged breathing of vapors.

    • Keep your hands and face away from the nozzle and the fuel-tank opening.

    • Keep fuel away from your eyes and skin.

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 to the fuel all gasoline. Mix the stabilizer with gasoline less than 30 days old.

Note: The capacity of the fuel tank is 3.8 L (1.0 US gallon).

Checking the Engine-Oil Level

Maintenance Service IntervalMaintenance Procedure
Before each use or daily
  • Check the engine-oil level.
  • Important: If the oil level in the engine is too low or too high and you run the engine, you may damage the engine.

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    Adjusting the Cutting Height

    Danger

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

    • Shut off 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.

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    During Operation

    During Operation Safety

    General Safety

    • Wear appropriate clothing, including eye protection; long pants; slip-resistant, substantial footwear; and hearing protection. Tie back long hair, secure loose clothing, and do not wear loose jewelry.

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

    • The blade is sharp; contacting the blade can result in serious personal injury. Shut off the engine, remove the ignition key (electric-start model only), and wait for all moving parts to stop before leaving the operating position.

    • When you release the blade-control bar, the engine should shut off and the blade should stop within 3 seconds. If not, stop using your machine immediately and contact an Authorized Service Dealer.

    • Keep bystanders, especially small children, out of the operating area. Stop the machine if anyone enters the area.

    • Always look down and behind you before moving the machine in reverse.

    • Operate the machine only in good visibility and appropriate weather conditions. Do not operate the machine when there is the risk of lighting.

    • Wet grass or leaves can cause serious injury if you slip and contact the blade. Avoid mowing in wet conditions.

    • Use extreme care when approaching blind corners, shrubs, trees, or other objects that may block your view.

    • Watch for holes, ruts, bumps, rocks, or other hidden objects. Uneven terrain could cause the machine to overturn or cause you to lose your balance or footing.

    • If the machine strikes an object or starts to vibrate, immediately shut off the engine, remove the key (if equipped), wait for all moving parts to stop, and disconnect the wire from the spark plug before examining the machine for damage. Make all necessary repairs before resuming operation.

    • Before leaving the operating position, shut off the engine, remove the ignition key (electric-start model only), and wait for all moving parts to stop.

    • If the engine has been running the muffler will be hot and can severely burn you. Keep away from the hot muffler.

    • Check the grass catcher components and the discharge chute frequently for any wear or deterioration and replace them with the manufacturer's recommended parts when necessary.

    • Use accessories and attachments approved by The Toro® Company only.

    Slope Safety

    • Mow across the face of slopes; never up and down. Use extreme caution when changing direction on slopes.

    • Do not mow on excessively steep slopes. Poor footing could cause a slip-and-fall accident.

    • Mow with caution near drop-offs, ditches, or embankments.

    Starting the Engine

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

    2. Open the fuel valve (Figure 11).

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    3. Firmly push and hold the primer bulb in for 1 second (A of Figure 12).

    4. Hold the blade-control bar in the Run/Shift position, about 5 cm (2 inches) below the handle (B of Figure 12).

    5. Pull the starter handle lightly until you feel resistance, pull it sharply, then allow it to return slowly to the rope guide on the handle (C of Figure 12).

      Note: If the engine does not start, repeat steps 3 through 5.

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    Shutting Off the Engine

    Release the blade-control bar. Both the engine and the blade should stop within 3 seconds. If they do not, contact an Authorized Service Dealer.

    Note: Close the fuel valve (Figure 11) if you will not be starting the engine soon afterward.

    Operating the Self-Propel Drive

    This machine has 3 ground speeds: 1 (slow), 2 (medium), and 3 (fast); it also has a Neutral (N) position. The self-propel-drive lever is located below and behind the fuel tank (Figure 13).

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    1. Move the self-propel-drive lever to the desired ground speed.

    2. Start the engine.

    3. Squeeze the blade-control bar against the handle to the Run/Drive position (Figure 14).

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      Important: Shifting speeds while squeezing the blade-control bar against the handle in the Run/Drive position could damage the transmission. Move the blade-control bar to the Run/Shift position (Figure 14) whenever you change the ground speed.

      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.

    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 (A of Figure 15).

    • If the rear-discharge plug is not installed, grip it by the handle, raise the rear deflector, and insert it into the rear-discharge chute until the latch locks into place (B of Figure 15).

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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.

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

    Installing the Grass Bag

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

    2. Raise and hold up the rear deflector (A of Figure 16).

    3. Remove the rear-discharge plug by pushing in the latch with your thumb and pulling the plug out from the machine (B and C of Figure 16).

    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 (D of Figure 16).

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

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    Removing the Grass Bag

    Danger

    The machine can throw grass clippings and other objects through an opening in the machine 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 deflector on the machine when the engine is running.

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

    2. Raise the rear deflector.

    3. Remove the bag rod on the grass bag from the notches at the base of the handle (A of Figure 15).

    4. Install the discharge plug (B of Figure 15).

    5. Lower the rear deflector (C of Figure 15).

    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 shut off 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 toward 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.

    After Operation

    After Operation Safety

    General Safety

    • Clean grass and debris from the machine to help prevent fires. Clean up oil or fuel spills.

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

    • Never 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.

    Hauling Safety

    • Remove the ignition key (if equipped) before loading the machine for hauling.

    • Use care when loading or unloading the machine.

    • Secure the machine from rolling.

    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 17).

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    Washing Method

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Remove grass clippings and dirt from under the machine.
  • 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. Move the machine to a paved level 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 wheel (Figure 18).

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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. Shut off 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 fuel from the fuel tank.

      Warning

      Tipping the machine may cause the fuel to leak from the carburetor or the fuel tank. Fuel 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 fuel 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.

    Maintenance

    Recommended Maintenance Schedule(s)

    Maintenance Service IntervalMaintenance Procedure
    After the first 8 hours
  • Change the engine oil.
  • After the first 25 hours
  • Tighten any loose fasteners.
  • Before each use or daily
  • Check the engine-oil level.
  • Remove grass clippings and dirt from under the machine.
  • Inspect the mower blades for wear or damage.
  • Inspect the accelerator for wear or damage.
  • 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.
  • Check for loose or missing fasteners on the engine.
  • Check for fuel or oil leaks.
  • Check or clean the recoil starter and the air-intake screen.
  • Every 25 hours
  • Clean the foam pre-filter (more frequently in dusty conditions).
  • Every 40 hours
  • Clean the wheels and gears.
  • Every 50 hours
  • Change the engine oil (more frequently in dusty 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.
  • Every 100 hours
  • Inspect, clean, and adjust the spark plug gap; replace the spark plug if necessary.
  • Tighten any loose fasteners.
  • Check or clean the recoil starter and the air-intake screen.
  • Every 200 hours
  • Change the engine-oil filter.
  • Have an authorized engine servicing dealer check for leaks in the fuel system and/or a deteriorating fuel hose. Replace parts if necessary.
  • Every 300 hours
  • Replace the paper air filter (more frequently in dusty conditions).
  • Clean the cylinder and the cylinder-head fins.
  • Have an authorized engine servicing dealer check and adjust the engine idle speed.
  • Have an authorized engine servicing dealer clean the combustion chamber.
  • Have an authorized engine servicing dealer check and adjust the valve clearance.
  • Have an authorized engine servicing dealer clean and lap the valve seating surface.
  • Important: Refer to your engine owner’s manual for additional maintenance procedures.

    Maintenance Safety

    • Disconnect the spark-plug wire from the spark plug before performing any maintenance procedure.

    • Wear gloves and eye protection when servicing the machine.

    • The blade is sharp; contacting the blade can result in serious personal injury. Wear gloves when servicing the blade. Do not repair or alter the blade(s).

    • Never tamper with safety devices. Check their proper operation regularly.

    • Tipping the machine may cause the fuel to leak. Fuel is flammable and explosive, and can cause personal injury. Run the engine dry or remove the fuel with a hand pump; never siphon the fuel.

    • To ensure optimum performance and continued safety certification of the machine, use only genuine Toro replacement parts and accessories. Replacement parts and accessories made by other manufacturers could be dangerous, and such use could void the product warranty.

    Servicing the Air Filter

    Maintenance Service IntervalMaintenance Procedure
    Every 25 hours
  • Clean the foam pre-filter (more frequently in dusty conditions).
  • Every 300 hours
  • Replace the paper air filter (more frequently in dusty conditions).
  • Important: Do not operate the engine without the air filter assembly in place; otherwise, extreme engine damage will occur.

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

    2. Disconnect the wire from the spark plug.

    3. Remove the cover and clean it thoroughly (Figure 19).

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    4. Remove and the foam pre-filter and the paper-air filter from the air-filter base (Figure 19).

    5. Remove the foam pre-filter from the paper air filter, and wash the foam pre-filter with a mild detergent and water, then blot it dry.

    6. Inspect the paper air filter, and replace it if it is excessively dirty.

      Important: Do not try to clean a paper filter.

    7. Install the foam pre-filter onto the paper air filter.

    Changing the Engine Oil

    Maintenance Service IntervalMaintenance Procedure
    After the first 8 hours
  • Change the engine oil.
  • Every 50 hours
  • Change the engine oil (more frequently in dusty conditions).
  • Run the engine a few minutes before changing the oil to warm it. Warm oil flows better and carries more contaminants.

    Engine Oil Specifications

    Engine oil capacity0.65 L (22 fl oz) without oil filter; 0.85 L (29 fl oz) with oil filter
    Oil viscositySAE 30 or SAE 10W-30 detergent oil
    API service classificationSJ or higher
    1. Shut off the engine and wait for all moving parts to stop.

    2. Disconnect the wire from the spark plug.

    3. Drain the fuel from the fuel tank.

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

    5. Clean around the dipstick.

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

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

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

    9. Fill the crankcase to the correct level on the dipstick with fresh oil; refer to Filling the Engine with Oil.

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

    Changing the Engine-Oil Filter

    Maintenance Service IntervalMaintenance Procedure
    Every 200 hours
  • Change the engine-oil filter.
    1. Run the engine to warm the oil.

      Warning

      Oil may be hot after the 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. Shut off the engine and wait for all moving parts to stop.

    3. Disconnect the wire from the spark plug.

    4. Drain the gasoline from the fuel tank.

    5. Drain the engine oil; refer to Changing the Engine Oil.

    6. Place a rag under the oil filter (Figure 20) to catch any oil that may leak out as you remove the oil filter.

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    7. Remove the oil filter.

    8. Use your finger to coat the gasket on the new oil filter with oil (Figure 26).

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    9. Install the new filter by rotating it clockwise until the seal contacts the filter housing, then rotate the filter an additional 3/4 turn by hand.

    10. Fill the crankcase to the Full line on the dipstick with fresh oil; refer to Filling the Engine with Oil.

    11. Connect the wire to the spark plug.

    12. Run the engine for about 3 minutes.

    13. Shut off the engine, wait for all moving parts to stop, and check for oil leakage around the filter.

    14. Add oil to compensate for the oil in the oil filter. Refer to Filling the Engine with Oil.

    15. Recycle the used oil filter properly.

    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. Shut off 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 22.

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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.

    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 23) 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 23) 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.

    Maintaining the Blade

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

    1. Shut off 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 11).

    4. Drain the fuel from the fuel tank.

    5. Tip the machine onto its right side (air cleaner up) as shown in Figure 24.

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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 25A). 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 25B and Figure 25C), 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 toward you or 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 26). Because sand and abrasive material can wear away the metal (especially in the area shown as item 2 in Figure 26), 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.

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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 bolt, the lock washer, the accelerator, and the blade (Figure 25).

    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 27A) and inner cutting edge radius (Figure 27B). 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 28).

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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, the lock washer, and the blade bolt. The sail of the blade must point toward the top of the mower housing for proper installation.

      Note: Torque the blade bolt to 82 N∙m (60 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

    If the blade brake cable needs to be replaced or is not adjusted properly, adjust the blade brake cable.

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

    2. Disconnect the wire from the spark plug.

    3. Hold the blade-control bar at 19 cm (7-5/8 inches) from the top of the handle as shown in Figure 29.

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    4. Loosen the cable-anchor nut.

    5. Pull down on the cable conduit to remove the slack from the brake cable.

    6. Tighten the cable-anchor nut.

    7. Release the blade-control bar and verify there is slack in the brake cable.

    Cleaning under the Belt Cover

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

    2. Disconnect the wire from the spark plug.

    3. Remove the belt cover (Figure 30) 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 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 compound 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

    Empty the fuel 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 fuel.

    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 fl 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 Maintaining the Blade.

    5. Check the condition of the accelerator; refer to Inspecting the Accelerator.

    6. BBC models only: Clean the blade-brake-clutch shield; refer to Cleaning under the Machine.

    7. Service the air filter; refer to Servicing the Air Filter.

    8. Tighten all nuts, bolts, and screws.

    9. 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 fuel.

    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 fuel. 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 machine 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 fuel.
    2. Clean the air-filter pre-cleaner and/or replace the paper air filter.
    3. Clean the underside of the machine.
    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.