Form No. 3350-473 ProLine 21-inch Recycler / Rear-Bagging Walk Power Lawn Mower Model No.
Warning Checking the Blade Brake Clutch . . . . . . . . . . . . Adjusting the Cutting Height . . . . . . . . . . . . . . . . Using the Grass Bag . . . . . . . . . . . . . . . . . . . . . . . Operating Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recommended Maintenance Schedule . . . . . . . . Checking the Engine Oil Level . . . . . . . . . . . . . . Checking the Blade Brake Clutch . . . . . . . . . . . .
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. 1 Do not run the engine indoors or in an enclosed area. Figure 1 1.
• Always be sure of your footing on slopes. • Use extra care when approaching blind corners, shrubs, trees, or other objects that may obscure vision. • Walk; never run. • Keep in mind that the operator or user is responsible for accidents or hazards occurring to other people or their property. • Keep a firm hold on the handle. • For wheeled rotary lawn mowers, mow across the face of slopes, never up and down. • See the manufacturer’s instructions for proper operation and installation of accessories.
• Never attempt to make wheel height adjustments while the engine is running. – before refuelling. • Reduce the throttle setting during engine run-out and, if the engine has a shutoff valve, turn the fuel off after mowing. • Grass catcher components are subject to wear, damage, and deterioration, which could expose moving parts or allow objects to be thrown. Frequently check the components and replace them with the manufacturer’s recommended parts when necessary.
Safety and Instruction 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. 43-8480 63-9060 68-7410 94-9418 74-1970 1. Transmission speeds 2. Neutral 98-4387 1. Warning—wear hearing protection.
4 Assembly 3 Note: Determine the left and right sides of the machine from the normal operating position. 2 Installing the Handle 1. Mount the handle to the outside of the lawn mower housing (using the bottom hole) with 2 5/16–18 x 1–1/4 in. cap screws, washers, and thin nylon insert locknuts. 5 2. Secure the handle latches to the handle with 2 cap screws (5/16–18 x 1-1/2 in.), washers, and nylon insert locknuts (Fig. 2). 1 530 Figure 3 1. Tank base 2. Fuel tank bracket 3. Plastic clips 2 4.
Installing the Discharge Tunnel Plug Before Starting Filling the Crankcase with Oil 1. Open the discharge door by pulling forward on the handle and moving it rearward (Fig. 5). Hold the discharge door handle to prevent the spring-loaded door from closing while you insert the plug. Initially, fill the crankcase with 30 ounces (0.88 liters) of oil. Use only high-quality SAE 30 or SAE 10W30 weight detergent oil that has the American Petroleum Institute (API) service classification SF, SG, SH, or SJ.
Important Do not overfill the crankcase with oil and run the engine; engine damage will result. Drain the excess oil until the oil level on the dipstick reads Full. Danger 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. 8. Insert the dipstick into the filler neck and rotate the cap clockwise until it is tight.
Controls 3. Fill the fuel tank with unleaded gasoline to within 1/4 to 1/2 inch (6 to 13 mm) from the top of the tank. Do not fill into the filler neck. The blade control bail, throttle control, and starter handle are on the upper handle as shown in Figure 10. Important Do not fill the tank more than 1/4 inch (6 mm) from the top of the tank because the gasoline must have room to expand. 2 4. Install the fuel tank cap and wipe up any spilled gasoline.
4. Move the ground speed control to the position (Fig. 12). Note: To disengage the traction drive but keep the blade engaged, gradually release the blade control bail to the B position. To self-propel with the blade disengaged, squeeze the blade control bail against handle to the C position without sliding the blade control bail to the right. (Neutral) 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 (Fig. 12).
5. Take a half sheet of newspaper and crumple it into a ball small enough to go under the deck (about 3 in. or 76 mm in diameter) as shown in Figure 14. 10. Release the blade control bail; refer to position B in Figure 17. You should hear a “bang.” The blade should stop in 3 seconds. A 1 B m-5085 Figure 17 756 Figure 14 11. Immediately push the lawn mower over the newspaper ball. 1. 5 in. (12.7 cm) 12. Stop the engine and wait for all moving parts to stop. 6. Place the ball of newspaper 5 in.
4. Release the blade control bail (Position B in Fig. 18). deteriorating, and, if ignored, could result in an unsafe operating condition. Have the lawn mower inspected and serviced by an Authorized Service Dealer. Note: If you hear a loud “bang,” you have raised the blade control bail too high. Repeat steps 2 through 4 above, but do not raise the blade control bail as high as in step 3. Adjusting the Cutting Height 5. Immediately push the lawn mower over the newspaper ball.
Installing the Grass Bag Mowing with the Grass Bag 1. Stop the engine and wait for all moving parts to stop. Warning 2. Ensure that the discharge door handle is fully forward and that the pin is engaged in the catch (Fig. 20). 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. 1 2 Check the grass bag frequently.
Operating Tips Cutting Grass • Review the safety instructions and read this manual carefully before operating the lawn mower. • Grass grows at different rates at different times of the year. In the summer heat, it is best to cut grass at the 2 inch (51 mm), 2-1/2 inch (64 mm), or 3 inch (76 mm) cutting height settings. Cut only about a third of the grass blade at a time. Do not cut below the 2 inch (51 mm) setting unless the grass is sparse or it is late fall when grass growth begins to slow down.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule Maintenance Service Interval Maintenance Procedure Each Use • Check the engine oil level. • Check the stopping time of the blade brake. The blade must stop within 3 seconds of releasing the bail; if it does not, contact an Authorized Service Dealer for repair. • Remove grass clippings and dirt from under the housing.
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. Checking the Engine Oil Level 1 Before you use the lawn mower, make sure that the oil level is between the Add and the Full marks as shown on the dipstick (Fig. 7). If the oil level is below the Add mark, and oil.
6. Fill the fuel tank. 3. Remove the screw that secures the air cleaner cover (Fig. 24). 7. Connect the wire to the spark plug. Cleaning the Discharge Tunnel and Plug 3 Remove the plug from the discharge tunnel and clean it after each use. Always be sure that the discharge tunnel door closes securely when you release the handle. If the debris prevents the discharge door from closing securely, clean the inside of the discharge tunnel and the door thoroughly. 1 m-7282 2 Figure 24 1. Screw 2.
2 Warning 1 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. 3 4 2. Stop the engine and wait for all moving parts to stop. m-796 Figure 26 1. Blade 2. Blade nuts 3. Disconnect the wire from the spark plug (Fig. 11). 3. Accelerator 4. Anti-scalp cup 4. Place a suitable drain pan under the right side of the lawn mower. 5.
Installing the Blade Danger 1. Install a sharp, balanced Toro blade, the accelerator, the anti-scalp cup, and the blade nuts. The sail of the blade must point toward the top of the lawn mower housing for proper installation. Torque the blade nuts to 15 to 27 ft-lb (20 to 37 N m). A worn or damaged blade can break, and a piece of the blade could be thrown into the operator’s or bystander’s area, resulting in serious personal injury or death. • Inspect the blade periodically for wear or damage.
8. Install the fuel tank and fuel line; refer to Installing the Fuel Tank and the Fuel Line on page 7. 6. Loosen the tabs that secure the BBC shield to the deck by loosening the nuts or the bolts on the tabs (Fig. 30). Rotate the tabs 180 to move them out of the way. Cleaning under the Belt Cover 2 Keep the area under the belt cover free of debris. 1 1. Stop the engine and wait for all moving parts to stop. 2. Remove the bolts that secure the belt cover (Fig. 31) to the lawn mower housing.
Adjusting the Self-propel Drive Servicing the Spark Plug 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. Check the spark plug after every 100 operating hours. Use an NGK BPR5ES spark plug or equivalent. 1. Close the door in the lawn mower housing and remove the grass bag. 2. Disconnect the wire from the spark plug (Fig. 11). 1.
Lubricating the Gear Case Warning After every 100 operating hours, grease the gear case. Oil may be hot after the engine has been run, and contact with hot oil can cause sever personal injury. 1. Remove the grass bag. 2. Install a grease gun onto the fitting through the belt cover opening (Fig. 38). Avoid contacting the hot engine oil when you drain it. 1 2 2. Stop the engine and wait for all moving parts to stop. 3. Disconnect the wire from the spark plug (Fig. 11). 4.
Assembling the Wheels 4. Pull the cable to the remove slack, but do not put tension on the spring. Tighten the cable clamp screw to lock the adjustment in place. 1. Position the tire onto one wheel half, aligning the lugs on each (Fig. 40). 2. Place the bearing/hub assembly into the center hole of the wheel half. Ensure that the legs of the hub are positioned over the flange of the hole (Fig. 40). Warning Do not overtighten the blade brake cable.
Empty the fuel tank when mowing the last time before storing the lawn mower. 3. Clean the spark plug or replace it if it is cracked, broken, or if the electrodes are worn. 1. Run the lawn mower until the engine stops from running out of fuel. 4. Install the spark plug and torque it to 17 ft-lb (23 N⋅m). 2. Prime the engine and start it again. 5. Perform any needed maintenance procedures; refer to Maintenance on page 16. 3. Allow the engine to run until it stops.
Troubleshooting Toro designed and built your lawn mower for trouble-free operation. Check the following components and items carefully, and refer to Maintenance on page 16 for more information. If a problem continues, contact an Authorized Service Dealer. Problem Engine does not start Engine starts hard or loses power Engine runs rough Possible Causes Corrective Action 1. The fuel tank is empty or the fuel system contains stale fuel. 1. Drain and/or fill the fuel tank with fresh gasoline.
Problem Lawn mower or engine vibrates excessively Uneven cutting pattern Discharge chute plugs Lawn mower does not self-propel Possible Causes Corrective Action 1. The blade is bent or is out of balance. 1. Balance the blade. If the blade is bent, replace it. 2. The blade mounting nuts are loose. 2. Tighten the blade mounting nuts. 3. The underside of the lawn mower deck contains clippings and debris. 3. Clean the underside of the lawn mower deck. 4. The engine mounting bolts are loose. 4.
Gas, Cordless, Electric, and 21″ Commercial Duty Walk Mowers The Toro Total Coverage Guarantee A Full Warranty (Limited Warranty for Commercial Use) Conditions and Products Covered Owner Responsibilities The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair any Toro Product used for normal residential purposes* if defective in materials or workmanship or if it stops functioning due to the failure of a component.
