Form No. 3359-633 Rev A 21in Heavy-Duty Recycler®/Rear Bagger Lawn Mower Model No. 22191—Serial No. 280000001 and Up Register at www.Toro.com.
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. Important: This engine is not equipped with a spark arrester muffler. It is a violation of California Public Resource Code Section 4442 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land. Other states or federal areas may have similar laws. Figure 1 1.
Safety Starting the Engine............................................. 12 Stopping the Engine ........................................... 13 Operating the Blade and the Self-Propel Drive.............................................................. 13 Using the Discharge Tunnel Plug ........................ 13 Checking the Blade Brake Clutch ........................ 13 Adjusting the Cutting Height .............................. 15 Using the Grass Bag ...........................................
• Before using, always visually inspect the blades, blade bolts, and cutter assembly for wear or damage. Replace worn or damaged blades and bolts in sets to preserve balance. • On multibladed lawn mowers, use care as rotating one blade can cause the other blades to rotate. • Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the lawn mower and the mowing activity. Never assume that children will remain where you last saw them.
– before checking, cleaning, or working on the lawn mower; • Check the grass catcher frequently for wear or deterioration. – after striking a foreign object. Inspect the lawn mower for damage and make repairs before starting and operating the lawn mower; and • Replace worn or damaged parts. – if the lawn mower starts to vibrate abnormally (check it immediately). • Never tamper with safety devices. Check their proper operation regularly.
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 68-7410 1. Indicates the blade is identified as a part from the original machine manufacturer. 74-1970 1. Transmission speeds 2. Neutral 92-1779 43-8480 98-4387 1. Warning—wear hearing protection.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure 1 2 3 4 Description Use Qty. Handle Bolt (5/16 x 1-1/4 inches) Washer Thin nylon insert locknut (5/16 inch) Bolt (5/16 x 1-1/2 inches) Carriage bolt Locknut (5/16 inch) Bag support rod Bag aligning plate Cap locknut Cable tie Fuel tank Fuel tank bracket Adaptor bracket Bolt (1/4 x 3/4 inch) 1 2 4 2 2 1 2 1 1 3 3 1 1 1 1 Discharge tunnel plug 1 Install the discharge tunnel plug.
2. Secure the handle latches to the handle with 2 bolts (5/16 x 1-1/2 inches), washers, and locknuts (5/16 inch) (Figure 3). 1 Installing the Handle Note: Install the washers with the cup side facing the handle. Parts needed for this procedure: Note: You can adjust the handle height for comfortable operation. Stand behind the handle to determine the height.
2. Since the plug is slightly wider than the discharge tunnel opening, rotate the plug clockwise slightly while inserting it (Figure 5). Note: Ensure that the arrow on the plug decal points upward. 3. Push the plug all the way in until the spring clip on the bottom of the plug clicks into place, locking the plug securely into the discharge tunnel (Figure 6). Figure 4 1. Fuel tank bracket 2. Adaptor bracket 3. Bolt (1/4 x 3/4 inch) (2) 4. Locknut (1/4 inch) (2) 2.
Product Overview Operation Note: Determine the left and right sides of the machine from the normal operating position. Each time before you mow, make sure that the self-propel drive and the control bar operate properly. When you release the control bar, the blade and self-propel drive should stop. If they do not, contact an Authorized Service Dealer. This machine produces sound levels in excess of 85dBA at the operator’s ear and can cause hearing loss through extended periods of exposure. Figure 7 1. 2.
Filling the Fuel Tank with Gasoline For best results, use clean, fresh, lead-free gasoline with an octane rating of 87 or higher. To ensure freshness, purchase only the quantity of gasoline that you expect to use in 30 days. Using unleaded gasoline results in fewer combustion deposits and longer engine life. You may use leaded gasoline if unleaded gasoline is not available. Important: Do not add oil to the gasoline.
When fueling, under certain circumstances, a static charge can develop, igniting the gasoline. A fire or explosion from gasoline can burn you and others and damage property. • Always place gasoline containers on the ground and away from your vehicle before filling. • Do not fill gasoline containers inside a vehicle or on a truck or trailer bed because interior carpets or plastic truck bed liners may insulate the container and slow the loss of any static charge. Figure 11 1. Oil fill/dipstick 2.
3. Move the ground speed control to the Neutral (N) position (Figure 13). B position. To self-propel with the blade disengaged, squeeze the control bar against handle to the C position without sliding the control bar to the right. The lawn mower has 3 ground speeds. 1 is slow, 2 is medium, and 3 is fast. The ground speed control is located at the rear of the belt cover (Figure 13). Note: You can vary the ground speed by increasing or decreasing the distance between the control bar and the handle.
4. Set the ground speed selector to the Neutral (N) position. 5. Take a half sheet of newspaper and crumple it into a ball small enough to go under the deck (about 3 inches or 76 mm in diameter) as shown in Figure 15. Figure 17 1. 1 inch (2.5 cm) 10. Release the control bar; refer to position B in Figure 18. You should hear a “bang.” The blade should stop in 3 seconds. Figure 15 1. 5 inches (12.7 cm) Figure 18 6. Place the ball of newspaper 5 inches (12.7 cm) in front of the lawn mower (Figure 15). 7.
If the blade brake clutch system is inoperative, the blade will continue to rotate when you release the control bar. Contact with blade could occur, causing serious injury. • Check the blade brake clutch system operation before each use. Figure 19 • Never use a lawn mower equipped with a blade brake clutch that has an inoperative safety system. Note: This intermediate position (C) is not the normal operating position of the control bar.
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. Figure 21 1. Pull the wheel height adjustment lever toward the wheel (Figure 20) and move it to the desired setting. 1. Bag frame on retaining post 2. Pin engaged in catch 3.
Mowing with the Grass Bag Operating Tips General Tips • Review the safety instructions and read this manual carefully before operating the lawn mower. A worn grass bag could allow small stones and other similar debris to be thrown in the operator’s or bystander’s direction and result in serious personal injury or death to the operator or bystanders. • Clear the area of sticks, stones, wire, branches, and other debris that the blade could hit and throw.
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 one pass over the leaves. Operating a lawn mower with its engine running at a speed greater than the factory setting can cause the lawn mower to throw a part of the blade or engine into the operator’s or bystander’s area and result in serious personal injury or death. • For light leaf coverage, set all the wheels at the same cutting height setting.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 8 hours • Change the engine oil without the oil filter. Before each use or daily • • • • • Check the engine oil level. Check the operation of the blade brake clutch. Inspect the mower blades for wear or damage. Clean under the lawn mower housing. Clean the discharge tunnel and plug.
Lubrication Engine Maintenance Lubricating the Pivot Arms Servicing the Air Filter Service Interval: Every 50 hours Service Interval: Every 25 hours—Clean the foam pre-cleaner (more frequently in dusty conditions). 1. Move the rear wheel cutting height levers to the center setting. Every 300 hours—Replace the paper air filter (more frequently in dusty conditions). 2. Wipe the grease fittings with a clean rag (Figure 23).
Changing the Engine Oil Changing the Oil Filter Service Interval: After the first 8 hours—Change the engine oil without the oil filter. Service Interval: Every 100 hours—Change the engine oil and oil filter. Every 50 hours—Change the engine oil (more often in dusty conditions). Replace the oil filter (Figure 26) after every 100 operating hours or yearly, whichever comes first. Oil Capacity With oil filter 29 ounces (0.85 liters) Without oil filter 22 ounces (0.65 liters) 1.
Figure 28 Figure 27 1. 0.030 inches (0.76 mm) 1. Gasket 6. Install the spark plug and the gasket seal. 8. Install the new filter and hand tighten it 2/3 turn only. 7. Torque the plug to 17 ft-lb (23 N⋅m). 8. Connect the wire to the spark plug. 9. Fill the crankcase to the Full line on the dipstick with fresh oil Refer to Filling the Crankcase with Oil. 10. Connect the wire to the spark plug. 11. Run the engine for about 3 minutes. 12.
Fuel System Maintenance Drive System Maintenance Emptying the Fuel Tank and Cleaning the Fuel Filter Adjusting the Self-propel Drive Service Interval: Every 50 hours—Check the fuel hose and replace it if necessary. Every 100 hours—Clean the fuel filter. If the lawn mower does not self-propel or has a tendency to creep forward when the control bar is more than 1-1/2 inches (3.8 cm) from the handle, adjust the wheel drive control knob on the rear of the gear box.
Servicing the Wheels tighten. Remove the 2 long screws or bolts and replace them with 2 bolts and 2 locknuts (Figure 31). Removing the Wheels 7. Install the wheel to the pivot arm with the bolts, a spacer, and a locknut. Ensure that the spacer is positioned between the wheel hub and the pivot arm (Figure 31). Service Interval: Every 100 hours 1. Stop the engine and wait for all moving parts to stop. 2. Disconnect the wire from the spark plug (Figure 12). 3.
Controls System Maintenance Blade Maintenance Adjusting the Blade Brake Cable 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 (Figure 11). 3. Drain the gasoline from the fuel tank; refer to Emptying the Fuel Tank and Cleaning the Fuel Filter. 4. Tip the lawn mower onto its right side (Figure 33).
Note: For the best performance, install a new blade before the cutting season begins. During the year, file down any small nicks to maintain the cutting edge. 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). The blade is properly balanced when neither end drops.
Cleaning Cleaning under the Lawn Mower Housing Figure 38 To ensure the best performance, keep the underside of the lawn mower housing clean. Be especially careful to keep the kickers free of debris (Figure 37). 1. Right rear wheel Note: The blade will draw in water and wash out clippings. Let the water run until you no longer see clippings being washed out from under the housing. 4. Stop the engine and wait for all moving parts to stop. 5. Turn off the water. 6.
clean the inside of the discharge tunnel and the door thoroughly. on the tabs (Figure 39). Rotate the tabs 180° to move them out of the way. Grass clippings and other objects can be thrown from an open discharge tunnel and cause serious injury or kill the operator or bystanders. Never start or operate the lawn mower unless one of the following is true: • The discharge tunnel plug is locked securely in the discharge tunnel. Figure 39 1. Tabs and nuts 2.
Storage 2. Clean any dirt and chaff from the cylinder, cylinder head fins, and blower housing. To prepare the lawn mower for off-season storage, perform the recommended maintenance procedures. Refer to Maintenance. 3. Remove grass clippings, dirt, and grime from the external parts of the engine, the shrouding, and the top of the lawn mower housing. Store the lawn mower in a cool, clean, dry place. Cover the lawn mower to keep it clean and protected. 4. Check the condition of the blade.
Troubleshooting Problem Engine does not start 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 has not been primed. 3. The wire is not connected to the spark plug. 4. The spark plug is pitted, fouled, or the gap is incorrect. 2. Prime the engine. 3. Connect the wire to the spark plug. 1.
Problem Lawn mower does not self-propel Possible Cause Corrective Action 1. The self-propel drive cable is out of adjustment or is damaged. 1. Adjust the self-propel drive cable. Replace the cable if necessary. 2. There is debris under the belt cover. 2. Clean the debris from under the belt cover.
Toro 21” The Toro Total Coverage Guarantee Commercial Walk Power A Two-Year Full Warranty (Limited Warranty for Commercial Use) Mower Conditions and Products Covered The Toro® Company and its afliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair any Toro Product, when used for residential purposes*, if defective in materials or workmanship or if it stops functioning due to the failure of a component.
