TROUBLESHOOTING CHART
PROBLEM
Loss of power (cont,d)
CAUSE
•
•Dirty air tilter.
•Low oil level/dirty oil.
•Faulty spark plug.
•Dirty fuel filter.
•Stale or dirty fuel.
CORRECTION
• | Clean underside of mower hous- |
| ing. |
• | Clean/replace air tilter. |
• | Check oil level/change oil. |
• | Clean and regap or change |
| spark plug. |
• | Replace fuel filter. |
• | Drain fuel tank and refill with |
| fresh gasoline. |
| • | Water in fuel. |
| • | Spark plug wire loose. |
| • | Dirty engine air screen/fins. |
| • | Dirty/clogged muffler. |
| • | Loose or damaged wiring. |
| • | Carburetor out of adjustment. |
| • | Engine valves out of adjust- |
|
| ment. |
Excessive vibration | • | Worn, bent or loose blade. |
| • | Bent blade mandrel |
| • | Loose/damaged part(s). |
• | Drain fuel tank and carburetor, |
| refill tank with fresh gasoline and |
| replace fuel filter. |
• | Connect and tighten spark plug |
| wire. |
• | Clean engine air screen/fins. |
• | Clean/replace muffler. |
• | Check all widng. |
• | See =ToAdjust Carburetor_ in |
| Service and Adjustments |
| section. |
• | Contact an authorized service |
| center. |
• Replace blade. Tighten blade | |
| bolt. |
• | Replace blade mandrel. |
• Tighten loose part(s). Replace | |
| dama_led pads. |
Engine continues to run when operator leaves seat with at- tachment clutch
engaged
Poor cut - uneven
Mower blades will not rotate
Poor grass discharge
•Faulty
•Worn, bent or loose blade.
•Mower deck not level.
•Buildup of grass, leaves, and trash under mower.
•Bent blade mandrel.
•Clogged mower deck vent holes from buildup of grass, leaves, and trash around mandrels.
•Obstruction in clutch mecha- nism.
•Worn/damaged mower ddve belt.
•Frozen idler pulley.
•Frozen blade mandrel.
•Engine speed too slow.
•Travel speed too fast.
•Wet grass.
• | Check wiring, switches and con- |
| nections. If not |
| corrected, contact an authorized |
| service center/ |
| department. |
• | Replace blade. Tighten blade |
| boR. |
• | Level mower deck. |
i ° Clean underside of mower hous- ing.
•Replace blade mandrel.
•Clean around mandrels to open vent holes.
•Remove obstruction.
•Replace mower ddve belL
•Replace idler pulley.
•Replace blade mandrel.
•Place throttle control in =FAST" position.
•Shift to slower speed.
•Allow grass to dry before mow- ing.
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