Form No. 3375-280 Rev A Commercial 21in Lawn Mower Model No. 22155—Serial No. 313000001 and Up Model No. 22156—Serial No. 313000001 and Up Register at www.Toro.com.
WARNING CALIFORNIA Proposition 65 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. Figure 1 1. Model and serial number location Important: This engine is not equipped with a spark arrester muffler.
Contents Safety Introduction .................................................................. 2 Safety ........................................................................... 3 General Operation .................................................. 3 Slope Operation ...................................................... 4 Children................................................................. 4 Service ...................................................................
• Use only an approved gasoline container. • Never remove gas cap or add fuel with the engine • Do not operate the machine while under the influence • • • • • of alcohol or drugs. Never operate the mower in wet grass. Always be sure of your footing; walk; never run. Disengage the drive system, if so equipped, before starting the engine. If the machine should start to vibrate abnormally, stop the engine and check for the cause immediately. Vibration is generally a warning of trouble.
Safety and Instructional Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. Manufacturer's Mark 117–2718 1. Indicates the blade is identified as a part from the original machine manufacturer. 121-1449 1. Warning—do not park on slopes unless wheels are chocked or blocked. 94-8072 114-2820 1. Warning—read the Operator's Manual. 4.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure Description Use Qty. 2 2 2 4 1 1 Oval-head bolt (5/16 x 1-1/2 inches) Bolt (5/16 x 1-1/2 inches) Spacer Locknut (5/16 inch) Cable tie 2 SAE 30W detergent oil with an API service classification of SH, SJ, SL, or higher (not supplied with the machine). 3 No parts required 20 oz. (0.55 l) – Install the handle. Fill the engine with oil. Install the recycle plug or grass bag. 2.
Note: You can set the handle height in 1 of 2 positions (Figure 5). Set the handle to a height that is comfortable for you. Figure 7 1. Self-propel-drive cable 2. Insert cable jacket end here Figure 5 1. Higher handle position 3. Attach cable end here 2. Lower handle position 5. Ensure that the self-propel drive is properly adjusted. Refer to Adjusting the Self-propel Drive Cable (page 19). Note: Torque all bolts to 120 in-lb (13.6 N-m). 3.
2 3 Filling the Engine with Oil Install the Rear-discharge Plug or Grass Bag Parts needed for this procedure: No Parts Required SAE 30W detergent oil with an API service 20 oz. classification of SH, SJ, SL, or higher (not supplied (0.55 l) with the machine). Procedure You must correctly install the rear-discharge plug (for recycling or side-discharging the clippings) or grass bag (for bagging the clippings) or the engine will not start.
Product Overview Figure 12 Figure 11 1. Blade-control bar 2. Self-propel-drive bar 6. Air filter 7. Spark plug 3. Handle 8. Oil fill/dipstick (not shown) 4. Fuel tank 5. Cutting-height lever (4) 9. Starter handle 2. Squeeze the button on the lever with your thumb and fully insert the rear-discharge plug into the opening (Figure 11). 3. Release the button on the lever and ensure that the top of the lever is lies fully in the switch channel.
Controls Operation Note: Determine the left and right sides of the machine from the normal operating position. Checking the Engine Oil Level Service Interval: Before each use or daily 1. Remove the dipstick, wipe it clean, and insert it into the oil filler neck, but do not screw it in (Figure 15). Figure 14 1. Recoil-start handle 3. Self-propel-drive bar 2. Blade-control bar Figure 15 2. Remove the dipstick and check the oil level (Figure 15).
Filling the Fuel Tank with Gasoline 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. Figure 17 • Fill the tank outdoors when the engine is cold. Wipe up spills. 1.
Figure 21 1. Recoil-start handle 5. If the machine does not start after 1 or 2 pulls, repeat steps 3 and 4. Note: If the machine still does not start, contact an Authorized Service Dealer. Stopping the Engine Service Interval: Before each use or daily To stop the engine, release the blade-control bar (Figure 22). Important: When you release the blade-control bar, both the engine and blade should stop within 3 seconds.
Figure 23 1. Self-propel-drive bar Note: The maximum self-propel-drive speed is fixed. To reduce the speed, increase the space between the self-propel-drive bar and the handle. 2. To disengage the self-propel drive, release the self-propel drive bar. Note: The machine comes with freewheeling clutches that make it easier to pull the machine rearward. To disengage the clutches, you may need to push the machine forward 1 inch (2.5 cm) or more after you release the self-propel-drive bar. Figure 24 1.
Figure 25 1. Top of rear-discharge plug lever in switch channel Bagging the Clippings Figure 26 Use the grass bag when you want to collect grass and leaf clippings from the lawn. 2. Insert the grass bag handle into the grooves at the top of the machine. If the side-discharge chute is on the machine, remove it and lock the side-discharge door; refer to Removing the Side-discharge Chute (page 15) before bagging the clippings.
Figure 30 3. Install the side-discharge chute and close the door onto the chute (Figure 31). Figure 28 Side-discharging the Clippings Use the side-discharge chute for cutting very tall grass. If the bag is on the machine, remove it and insert the rear-discharge plug; refer to Removing the Grass Bag (page 14) before side-discharging the clippings.
Operating Tips If the finished lawn appearance is unsatisfactory, try one or more of the following: General Tips • Sharpen the blade. • Maintain a sharp blade throughout the cutting season. • Walk at a slower pace while mowing. • • 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.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 5 hours • Change the engine oil. Before each use or daily • • • • Check the engine oil level. Ensure that the engine stops within 3 seconds after releasing the blade-control bar. Check the air cleaner for dirt and/or damage and clean or replace it if necessary. Clean grass clippings and dirt from under the machine housing. Every 100 hours • Check the spark plug.
Engine Maintenance Servicing the Air Cleaner Service Interval: Before each use or daily Yearly 1. Press down on the latch tabs on top of the air cleaner cover and remove the cover (Figure 34). Figure 35 3. Tip the machine onto its side, with the air filter up, to drain the used oil out through the oil fill tube (Figure 36). Figure 34 1. Air cleaner cover 2. Latch tab (2) 3. Air filter 2. Remove the air filter (Figure 34). Figure 36 3.
Drive System Maintenance 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 0.030 in. (0.76 mm) (Figure 37). Adjusting the Self-propel Drive Cable Self-propel model only Whenever you install a new self-propel cable or if the self-propel drive is out of adjustment, adjust the self-propel drive cable. 1. Loosen the cable support nut (Figure 38). Figure 37 1.
Blade Maintenance Maintaining the Cutting Blade Service Interval: Yearly Examine the blade whenever you run out of gasoline. If the blade is damaged or cracked, replace it immediately. If the blade edge is dull or nicked, have it sharpened or replace it. WARNING The blade is sharp; contacting the blade can result in serious personal injury. Wear gloves when servicing the blade. 1. Disconnect the spark-plug wire from the spark plug. Refer to Preparing for Maintenance. 2.
Cleaning Storage Cleaning under the Machine Housing To prepare the machine for off-season storage, perform the recommended maintenance procedures. Refer to Maintenance. Store the machine in a cool, clean, dry place. Cover the machine to keep it clean and protected. Service Interval: Before each use or daily WARNING Preparing the Fuel System The machine may dislodge material from under the machine housing. WARNING • Wear eye protection. • Stay in the operating position (behind the handle).
General Information 1. Clean the machine housing. Refer to Cleaning under the Machine Housing (page 21). 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 machine housing. 4. Check the condition of the blade. Refer to Maintaining the Cutting Blade (page 20). 5. Service the air cleaner; refer to Servicing the Air Cleaner (page 18). 6.
Troubleshooting Problem The engine does not start. The engine starts hard or loses power. Possible Cause 1. The fuel tank is empty or the fuel system contains stale fuel. 1. Drain and/or fill the fuel tank with fresh gasoline. If the problem persists, contact an Authorized Service Dealer. 2. The engine is cold and the choke was not used. 3. The wire is not connected to the spark plug. 4. The spark plug is pitted, fouled, or the gap is incorrect. 2. Move the choke lever to the Choke position. 3.
The Toro Total Coverage Warranty A Limited Warranty (see warranty periods below) Conditions and Products Covered 3. If for any reason you are dissatisfied with the Service Dealer’s analysis or with the assistance provided, contact us at: The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to the original purchaser to repair the Toro Products listed below if defective in materials or workmanship.
