TROUBLESHOOTING CHART
PROBLEM
Loss of power (cont'd)
Excessive vibration
Engine continues to
run when operator leaves seat with at
tachment clutch engaged
Poor cut uneven
CAUSE
•Faulty spark plug.
•Dirty fuel filter.
•Stale or dirty fuel.
•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.
•Worn, bent or loose blade.
•Bent blade mandrel.
•Loose/damaged part(s).
•Faulty operator-safety pres- ence control system.
•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.
CORRECTION
• | Clean and regap or change |
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| spark plug. |
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• | Replace fuel | filter. |
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• | Drain fuel tank and refill with | |||||
| fresh gasoline. |
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• | Drain fuel tank and carburetor, | |||||
| refill tank with fresh gasoline and | |||||
| replace | fuel filter. |
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• | Connect | and tighten spark | plug | |||
| wire. |
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i • | Clean engine | air screen/fins. | ||||
• | Clean/replace |
| muffler. |
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• | Check all wiring. |
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• | See "To Adjust | Carburetor" | in | |||
| Service | and | Adjustments |
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| section. |
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• | Contact an authorized service | |||||
| center. |
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• | Replace blade. Tighten | blade | ||||
| bolt. |
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• | Replace | blade | mandrel. |
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• Tighten loose part(s). Replace | ||||||
| damaged parts. |
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• | Check wiring, | switches | and | |||
| connections. | If not |
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| corrected, contact an autho- | |||||
| rized service center/ |
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| department. |
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• | Replace blade. Tighten | blade | ||||
| bolt. |
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• | Level mower deck. |
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• Clean underside of mower |
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| housing. |
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• | Replace | blade | mandrel. |
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• Clean around mandrels to open | ||||||
| vent holes. |
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Mower blades will not • Obstruction in clutch mecha-
rotatenism.
•Worn/damaged mower drive belt.
•Frozen idler pulley.
•Frozen blade mandrel.
Poor grass discharge • Engine speed too slow.
•Travel speed too fast.
•Wet grass.
•Mower deck not level.
•Low/uneven tire air pressure.
•Worn, bent or loose blade.
• | Remove | obstruction. | |
• | mower | drive belt. | |
• | Replace | idler pulley. | |
• | Replace | blade mandrel. | |
• | Place throttle control in "FAST" | ||
| position. |
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• Shift to slower speed. | |||
• Allow grass to dry before mow- | |||
| ing. |
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• | Level mower deck. | ||
• Check tires for proper air pres- | |||
| sure. |
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• | Replace!sharpen | blade. Tighten | |
| blade bolt. |
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