Form No. 3351-314 ProLine 53cm Heavy-Duty Recycler / Rear-Bagging Walk Power Lawn Mower Model No.
Keep this engine Owner’s Manual with your unit. Should this engine Owner’s Manual become damaged or illegible, replace immediately. Replacements may be ordered through the engine manufacturer. Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preparing the Fuel System . . . . . . . . . . . . . . . . . . Preparing the Engine . . . . . . . . . . . . . . . . . . . . . . General Information . . . . . . . . . . . . . . . . . . . . . . . Removing the Lawn Mower from Storage . . . .
Warning signals a hazard that may cause serious injury or death if you do not follow the recommended precautions. • Never allow adults unfamiliar with these instructions to operate the lawn mower. Caution signals a hazard that may cause minor or moderate injury if you do not follow the recommended precautions. • Never mow while people (especially children) or pets are nearby. Stop the lawn mower if anyone enters the area. This manual uses two other words to highlight information.
• Never pick up or carry a lawn mower while the engine is running. – If you must drain the fuel from the fuel tank, do it outdoors. • Replace faulty mufflers. • Stop the engine and disconnect the spark-plug wire: • 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.
Maintenance and Storage Sound Pressure • Keep all nuts, bolts (especially blade attachment bolts), and screws tight to ensure that the lawn mower is in safe working condition. This unit has a maximum sound pressure level at the operator ’s ear of 86 dBA, based on measurements of identical machines per Directive 98/37/EC. • Never store the lawn mower with gasoline in the tank inside a building where fumes may reach an open flame or spark.
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. 93-6664 1. Read the Operator’s Manual for information on greasing the traction drive every 25 operating hours and greasing the transmission every 100 operating hours. 93-6654 1. Thrown object hazard, mower—keep the deflector in place. 2.
98-2048 1. 2. 3. 4. 5. Choke Fast Continuous variable setting Slow Engine—stop 6. Set the throttle lever to the Choke position, pull the cord to start the engine, then move the throttle to the Fast position. 7. Release the bail to disengage the cutting blade. 8. Move the bail up to engage the cutting blade. 9. Move the bail to the handle to engage the traction drive. 10. Forward speeds 11. Neutral 98-4387 1. Warning—wear hearing protection.
Installing the Handle Installing the Starter Rope 1. Mount the handle to the outside of the lawn mower housing (using the bottom hole) with two 5/16–18 x 1-1/4 in. bolts, washers, and thin nylon insert locknuts (Fig. 2). Pull the starter rope through the rope guide on the handle (Fig. 3). 3 2 4 2 1 1 5 7 m–210 Figure 3 6 8 1. Starter rope 9 2. Rope guide 12 Note: To make the rope easier to install, squeeze the control bar on the handle.
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 (Fig. 5). To add oil: 1. Move the lawn mower to a level surface. 2. Clean around the dipstick (Fig. 6). 3. Remove the dipstick by rotating the cap counterclockwise and pulling it out. 1 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 it. 6.
1. Clean around the fuel tank cap (Fig. 7). Danger 1 2 In certain conditions, gasoline is extremely flammable and highly explosive. A fire or explosion from gasoline can burn you and others and can damage property. 3 • Fill the fuel tank outdoors, in an open area, and when the engine is cold. Wipe up any gasoline that spills. • Do not fill the fuel tank completely full. Add gasoline to the fuel tank until the level is 1/4 to 1/2 in. (6 to 13 mm) below the bottom of the filler neck.
Operation 3. Move the throttle control to the Choke position (Fig. 8). Note: Do not use the choke when the engine is warm. Note: Determine the left and right sides of the machine from the normal operating position. 4. Hold the control bar to the handle (Fig. 8). Each time before you mow, ensure that the self-propel drive and the control bar operate properly. When you release the control bar, the engine and the blade should stop within 3 seconds. If they do not, contact an Authorized Service Dealer. 5.
Adjusting the Cutting Height 3. Squeeze the control bar against the handle to the Run/Drive position (Fig. 11). Each wheel is adjusted individually with a wheel height adjustment lever. Cutting heights are 3/4 inch (1.9 cm), 1-1/4 inches (3.2 cm), 1-3/4 inches (4.4 cm), 2-1/4 inches (5.7 cm), 2-3/4 inches (7.0 cm), and 3-1/4 inches (8.3 cm). 1 2 3 Danger Adjusting the cutting height levers could bring your hands into contact with a moving blade and result in serious injury. m-3769 Figure 11 1.
Mowing with the Grass Bag Using the Grass Bag Occasionally, you may want to use the grass bag for bagging extra long grass, lush grass, or leaves. Warning 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. Installing the Grass Bag 1. Stop the engine and wait for all moving parts to stop. 2.
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 2-1/4-inch (5.7 cm), 2-3/4-inch (7.0 cm), or 3-1/4-inch (8.3 cm) cutting height settings. Cut only about a third of the grass blade at a time. Do not cut below the 2-1/4-inch (5.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule Maintenance Service Interval Each Use Maintenance Procedure • Check the engine oil level. Refer to Checking the Engine Oil Level on page 16. • Check the stopping time of the blade brake. The blade must stop within 3 seconds of releasing the control bar; if it does not, contact an Authorized Service Dealer for repair.
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 3. Attach the coupling to the washout fitting (Fig. 16). Before you use the lawn mower, ensure that the oil level is between the lower limit and the upper limit marks as shown on the dipstick (Fig.
Servicing the Air Cleaner Warning Inspect the air cleaner elements after every time you use the lawn mower. Tipping the lawn mower 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. Clean the cover, base, and foam and paper elements after every 25 operating hours.
the blade, check the blade before using the lawn mower. If you notice a slot or wear (Figs. 19B and 19C), replace the blade; refer to Removing the Blade on page 18. 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. 1 A 10. Rinse and dry the foam element thoroughly. 11. Dip the foam element in clean engine oil, then squeeze out the excess oil.
Sharpening the Blade Cleaning under the Belt Cover File the top side of the blade to maintain its original cutting angle (Fig. 20A) and inner cutting edge radius (Fig. 20B). The blade will remain balanced if you remove the same amount of material from both cutting edges. Keep the area under the belt cover free of debris. A B 1 1. Stop the engine and wait for all moving parts to stop. 2. Disconnect the wire from the spark plug (Fig. 7). 2 3.
Adjusting the Self-propel Drive Warning 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 (Fig. 24). 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.
3. Check the adjustment of the cable by moving the control bar toward the handle until you remove the slack in the cable. The gap between the brake lever and the handle must be between 3/16 and 1/4 in. (5 and 6 mm). To adjust the cable, go to step 4. 5. Set the gap on the plug to 0.030 in. (0.76 mm) (Fig. 26). 1 4. Loosen the nut on the cable bracket (Fig. 28). m-110 1 Figure 26 1. 0.030 in. (0.76 mm) 6. Carefully install the spark plug by hand (to avoid cross threading) until it is hand tight. 2 7.
4. Separate the wheel halves from the tire by removing four bolts and four locknuts (Fig. 29). Warning Note: If you remove the bearings from the bearing/hub assembly, remove them by pressing on the bearing spacer (Fig. 29). 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.
Removing the Lawn Mower from Storage 6. Fill the fuel in the fuel tank with fresh gasoline. 1. Check and tighten all fasteners. 8. Connect the wire to the spark plug. 2. Remove the spark plug and spin the engine rapidly using the starter to blow the excess oil from the cylinder. Accessories 3. Clean the spark plug or replace it if it is cracked, broken, or if the electrodes are worn. You may purchase the following accessories from an Authorized Service Dealer: 7. Check the engine oil level.
Problem Engine runs rough Lawn mower or engine vibrates excessively Uneven cutting pattern Discharge chute plugs Lawn mower does not self-propel Possible Causes Corrective Action 1. The wire is not connected to the spark plug. 1. Connect the wire to the spark plug. 2. The spark plug is pitted, fouled, or the gap is incorrect. 2. Check the spark plug and adjust the gap if necessary. Replace the spark plug if it is pitted, fouled, or cracked. 3. The throttle lever is not in the Fast position. 3.
