Sharpening the Blade
•The blade can be sharpened with a file or on a grinding wheel. Do not attempt to sharpen the blade while it is still on the mower.
•Follow the original angle of grind as a guide. Make sure that each cutting edge receives an equal amount of grinding to prevent an unbalanced blade.
WARNING: An unbalanced blade will cause excessive vibration when rotating at high speeds. It may cause damage to the mower, and could break causing personal injury.
Balancing the Blade
•The blade can be tested by balancing it on a round shaft screwdriver. Remove metal from the heavy side until it balances evenly. It is recommended that the blade always be removed from the adapter when testing for balance.
Installing the Blade
•Before reinstalling the blade and the blade adapter to the unit, lubricate the engine crankshaft and the inner surface of the blade adapter with light oil.
•Be sure to install the blade with the side of the blade marked “Bottom” (or with part number) facing the ground when the mower is in the operating position.
•Slide the blade adapter onto the engine crankshaft.
•Place the blade on the adapter. Be certain the blade is aligned and seated on the blade adapter flanges.
•Place blade bell support on blade. Make sure the notches on the blade bell support are aligned with small holes in the blade.
•Replace hex bolt and tighten hex bolt to torque: 450 in. lbs. min., 600 in. lbs. max.
NOTE: To ensure safe operation of your mower, periodically check the blade bolt for correct torque.
Replacing Rear Flap
•To remove rear flap, cut off the flat end of the wire rod which secures it to the deck.
•Attach the new flap and new rod to deck, bending the ends of the new rod over to secure to deck.
Storing Your Lawn Mower
The following steps should be taken to prepare your lawn mower for storage.
•Clean and lubricate mower thoroughly as described in the lubrication instructions.
•Refer to engine manual for correct engine storage instructions.
•Coat mower’s cutting blade with chassis grease to prevent rusting.
•Store mower in a dry, clean area. Do not store next to corrosive materials, such as fertilizer.
SECTION 9: TROUBLESHOOTING
Problem |
| Cause |
| Remedy |
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|
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|
|
Engine fails to start | 1. | Blade control handle disengaged. | 1. | Engage blade control handle. |
| 2. | Spark plug wire disconnected. | 2. | Connect wire to spark plug. |
| 3. | Fuel tank empty or stale fuel. | 3. | Fill tank with clean, fresh gasoline. |
| 4. | Blocked fuel line. | 4. | Clean fuel line. |
| 5. | Faulty spark plug. | 5. | Clean, adjust gap, or replace. |
| 6. | Engine flooded | 6. | Wait a few minutes to restart, do not prime. |
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|
|
Engine runs erratic | 1. | Spark plug wire loose. | 1. | Connect and tighten spark plug wire. |
| 2. | Blocked fuel line or stale fuel. | 2. | Clean fuel line; fill tank with fresh gasoline |
| 3. | Vent in gas plugged. | 3. | Clear vent. |
| 4. | Water or dirt in fuel system. | 4. | Drain fuel tank. Refill with fresh fuel. |
| 5. | Dirty air cleaner. | 5. | Clean air cleaner. |
| 6. | Carburetor out of adjustment. | 6. | Adjust carburetor. |
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|
|
Engine overheats | 1. | Engine oil level low. | 1. | Fill crankcase with proper oil. |
| 2. | Air flow restricted. | 2. | Remove blower housing and clean. |
| 3. | Carburetor not adjusted properly. | 3. | Adjust carburetor. |
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|
|
Excessive vibration | 1. | Cutting blade loose or unbalanced. | 1. | Tighten blade and adapter. Balance blade. |
| 2. | Bent cutting blade. | 2. | Replace blade. |
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|
|
Mower will not mulch grass | 1. | Wet grass. | 1. | Do not mow when grass is wet; wait until |
|
|
|
| later to cut. |
| 2. | Excessively high grass. | 2. | Mow once at a high cutting height, then mow |
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| again at desired height. |
| 3. | Dull blade. | 3. | Sharpen or replace blade. |
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|
Uneven cut | 1. | Wheels not positioned correctly. | 1. | Place all four wheels in same position. |
| 2. | Dull blade. | 2. | Sharpen or replace blade. |
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