Form No. 3323-219 53 cm Recycler Walk Power Lawn Mower Model No. 20789—200000001 and Up Model No.
Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Lawn Mower Safety . . . . . . . . . . . . . . . . . Sound Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sound Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vibration Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . Symbol Glossary . . . . . . . . . . . . . . . . . . . . . . . . . .
DANGER signals an extreme hazard that will cause serious injury or death if you do not follow the recommended precautions. Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the mower and the mowing activity. Never assume that children will remain where you last saw them. WARNING signals a hazard that may cause serious injury or death if you do not follow the recommended precautions.
Operation – after striking a foreign object. Inspect the mower for damage and make repairs before restarting and operating the mower; • Do not operate the engine in a confined space where dangerous carbon monoxide fumes can collect. – if mower starts to vibrate abnormally. Check immediately for the cause. Vibration is generally a warning of trouble. • Mow only in daylight or in good artificial light. • Always be sure of your footing on slopes. • Stop the engine • Walk; never run.
• Keep the mower free of grass, leaves, or other debris build-up. Clean up oil or fuel spillage. Sound Pressure • Never attempt to make wheel height adjustments while the engine (motor) is running. This unit has an equivalent continuous A-weighted sound pressure at the operator ear of 85.4 dB(A), based on measurements of identical machines per ANSI B71.5-1984 procedures. • Always disconnect electric mowers (live operated) before cleaning, repairing, or adjusting.
Throw or flying objects — Whole body exposure Engage Thrown or flying objects — Rotary side-mounted mower. Keep deflector shield in place. Disengage Stop engine before leaving operator position.
Choke Turn key in ignition switch. Primer (start aid) Move control. Push primer three times. Pull rope. Properly dispose of batteries. Wheel Insert key in ignition switch. Wheel traction Assembly Note: Determine the left and right sides of the lawn mower by standing in the operating position. Unpacking the Lawn Mower 3 IMPORTANT: Be extremely careful when unpacking and handling the lawn mower and upper handle so that you do not pull, crimp, or damage the cables. 1 1.
3. Secure the handle to the support brackets with the two flat handle bolts and two knobs, using the height adjustment holes on the brackets that best fit your height (Fig. 2) IMPORTANT: Keep the cables from pinching or stretching. Note: You can adjust the handle height by installing the handle bolt and knob through a different set of holes. 4. Slide the upper handle section ends over the lower handle so that the sections nest together (Fig. 3) 210 4 Figure 4 5 1. Rope guide 2.
Before Starting Filling the Crankcase with Oil The crankcase can hold 22 ounces (0.65 liters) of oil. Use only high-quality, SAE 30 or 10W30 weight detergent oil that has the American Petroleum Institute (API) “service classification” — SF, SG, SH, or SJ. Before each use, make sure that the oil level is between the Add and the Full marks on the dipstick (Fig. 8). 1915 Figure 6 1. Spring clip 6. Release the discharge door handle to lock the top of the plug. 7. To remove the plug: A.
8. Insert the dipstick into the filler neck and rotate the cap clockwise 1/4 turn. DANGER Filling the Fuel Tank with Gasoline POTENTIAL HAZARD • When fueling, under certain circumstances, a static charge can develop, igniting the gasoline. For best results, use clean, fresh, lead-free gasoline, including oxygenated or reformulated 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.
2 1 1 m-3855 3 m–3662 Figure 11 Figure 9 1. Blade control bail 2. Upper handle 1. Spark plug wire 3. Starter handle 2. Clean around the fuel tank cap (Fig. 10). Starting the Engine 1 1. Install the spark plug wire onto the spark plug. 2. Push the primer three times, waiting two seconds between each push (Fig. 10). 2 Note: If the temperature is 55_F (13_C) or below, push the primer five times, waiting two seconds between each push.
A. Insert the key into the switch (Fig. 13). To slow down the drive, simply slow your walking speed; to stop the drive, stop walking (Fig. 14). Note: If, when backing up after self-propelling, the lawn mower does not roll backward freely, nudge the lawn mower forward about an inch without engaging the self–propel drive, then pull the lawn mower backward.
Using the Grass Bag Occasionally, you may want to use the grass bag for bagging long grass, lush grass, or leaves. POTENTIAL HAZARD • Adjusting height-of-cut levers could bring hands into contact with moving blade. Installing the Grass Bag WHAT CAN HAPPEN • Contact with moving blade could cause serious personal injury. 1. Stop the engine and wait for all moving parts to stop. 2. Make sure that the discharge door handle is fully forward and the pin is contacting the catch (Fig. 17).
Mowing with the Grass Bag DANGER DANGER POTENTIAL HAZARD • Grass clippings and other objects can be thrown from an open discharge tunnel. POTENTIAL HAZARD • A worn grass bag could allow small stones and other similar debris to be thrown in operator’s or bystander’s direction. WHAT CAN HAPPEN • Objects thrown with enough force could cause serious personal injury or death to the operator or bystander.
• Keep the engine in good running condition. • Cut the grass more frequently. • Clean the air filter frequently. Mulching stirs up more clippings and dust which clogs the air filter and reduces engine performance. • Overlap cutting swaths instead of cutting a full swath with each pass. • Mow across the marginal areas a second time. • Set the height-of-cut on the front wheels one notch lower than the rear wheels. For example, set the front wheels at the C setting and the rear wheels at the D setting.
Service Item Each Use Service Operation 5 Hours 25 Hours 50 Hours 100 Hours Air Filter— Cartridge Clean or replace the cartridge every 100 hours or each mowing season. Replace it more frequently in dusty or dirty conditions. Blade Sharpen or replace the blade; maintain it more frequently if the edge dulls quickly in rough or sandy conditions. X Blade Brake Check the stopping time every 50 hours or before each mowing season.
Note: Change the oil after every 25 hours when operating under heavy load or in high temperatures. 1. If the grass bag is on the lawn mower, close the door in the lawn mower housing and remove the bag. 2. Drain the gasoline from the fuel tank; refer to Emptying the Fuel Tank on page 21. 757 3. Remove the wire from the spark plug (Fig. 9) 1 4. Remove the key from the switch on the electric start model. Figure 20 1. Kickers 5.
Servicing the Air Filter If the underside of the lawn mower deck has excessive grass buildup, do the following steps: Clean the air filter once every season or after every 25 operating hours. Clean or replace the paper cartridge after every 100 hours or every season; more frequently in dusty or dirty conditions. 1. Connect the hose to the washout fitting. 2. Turn the water on high. 3. Start the lawn mower and run it for two minutes. 1. Stop the engine and wait for all moving parts to stop. 4.
Maintaining the Cutting Blade 1 Always mow with a sharp blade. A sharp blade cuts cleanly and without tearing or shredding the grass blades like a dull blade. A 2 1. Drain the gasoline from the fuel tank; refer to steps 1 through 4 of Emptying the Fuel Tank on page 21. 1 B 2. Remove the wire from the spark plug (Fig. 9). 3 3. If a grass bag is on the lawn mower, close the door in the lawn mower housing and remove the bag. C 4. Tip the lawn mower onto its left side (Fig. 23).
2 1 1 153 Figure 25 1. Sharpen at this angle only m–4273 IMPORTANT: Check the balance of the blade by Figure 27 putting it on a blade balancer. You can buy an inexpensive balancer at a hardware store. A balanced blade is level horizontally, while an unbalanced blade drops toward the heavy side. If the blade is not balanced, file more metal off of the cutting edge on the heavy end of the blade. 1. Drive bracket 2. Push here 5.
Cleaning the Plug and Discharge Tunnel 1 2 To ensure the best performance, clean the discharge tunnel plug after each use. When the grass is thick and lush, clippings may collect on and around the plug, making plug removal difficult. 281 Figure 29 1. Belt cover Always be sure that the discharge tunnel door closes when you release the handle. If debris prevents the discharge door from closing, clean the inside of the discharge tunnel and the door thoroughly. 2. Bolts 3.
6. Connect the wire harness to the battery terminal. A fuse protects the electrical system charging circuit. If the battery does not stay charged, the fuse may be blown. Use a 5-amp plug-in type fuse. Disposing of the Battery 1. Remove and discard the blown fuse. Electric Start Models Only 2. Install the new fuse as shown in Figure 31. IMPORTANT: Do not dispose of used batteries in 2 your regular trash. 1 IMPORTANT: Recycle or dispose of a sealed lead (acid) battery according to local codes.
Problem Engine g runs rough g Corrective Action 1. Install the spark plug wire 2. Clean the spark plug, check the spark plug gap, and replace the spark plug if it damaged 3. Move the throttle lever from the Slow to the Fast position 4. Replace the air filter element Mower or engine g vibrates excessively i l 1. Balance the blade. If the blade is bent, replace it. 2. Tighten the blade mounting bolt 3. Clean the underside of the lawn mower deck 4.
2. Prime the engine and start it again. 3. Allow the engine to run until it stops. When you can no longer start the engine, it is sufficiently dry. m–4217 Preparing the Engine Figure 32 1. While the engine is still warm, drain the oil from the crankcase. Refer to Changing the Engine Oil on page 16. 2. Remove the spark plug (Fig. 9). Removing From Storage 3. Using an oil can, add about one tablespoon of oil to the crankcase through the spark plug hole. 1.
