TROUBLESHOOTING CHART
| PROBLEM | CAUSE | CORRECTION | ||
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| Loss of power | 3. | 3. | Clean underside of mower | |
| (continued) |
| trash under mower. |
| housing. |
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| 4. | Dirty air filter. | 4. | Clean/replace air filter. |
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| 5. | Low oil level/dirty oil. | 5. | Check oil level/change oil. |
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| 6. | Faulty spark plug. | 6. | Clean and regap or change |
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| spark plug. |
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| 7. | Dirty fuel filter. | 7. | Replace fuel filter. |
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| 8. | Stale or dirty fuel. | 8. | Empty fuel tank and refill tank |
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| with fresh, clean gasoline. |
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| 9. | Water in fuel. | 9. | Empty fuel tank and carbure- |
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| tor, refill tank with fresh gas- |
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| oline and replace fuel filter. |
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| 10. Spark plug wire loose. | 10. Connect and tighten spark | ||
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| plug wire. |
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| 11. Dirty engine air screen/fins. | 11. Clean engine air screen/fins. | ||
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| 12. Dirty/clogged muffler. | 12. Clean/replace muffler. | ||
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| 13. Loose or damaged wiring. | 13. Check all wiring. | ||
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| 14. Carburetor out of adjustment. | 14. See “To Adjust Carburetor” in | ||
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| Service and Adjustments |
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| section. |
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| 15. Engine valves out of | 15. Contact a qualified service | ||
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| adjustment. |
| center/department. |
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| Excessive | 1. | Worn, bent or loose blade. | 1. | Replace blade. Tighten blade |
| vibration |
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| bolt. |
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| 2. | Bent blade mandrel. | 2. | Contact a qualified service |
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| center/department. |
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| 3. | Loose/damaged part(s). | 3. | Tighten loose part(s). |
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| Replace damaged parts. |
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| Engine continues | 1. | Faulty | 1. | Check wiring, switches and |
| to run when oper- |
| presence control system. |
| connections. If not contact a |
| ator leaves seat |
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| qualified service center/de- |
| with attachment |
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| partment. |
| clutch engaged |
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| Poor cut - uneven | 1. | Worn, bent or loose blade. | 1. | Replace blade. Tighten |
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| blade bolt. |
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| 2. | Mower deck not level. | 2. | Level mower deck. |
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| 3. | Buildup of grass, leaves, and | 3. | Clean underside of mower |
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| trash under mower. |
| housing. |
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| 4. | Bent blade mandrel. | 4. | Contact a qualified service |
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| center/department. |
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| 5. | Clogged mower deck vent | 5. | Clean around mandrels to |
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| holes from buildup of grass, |
| open vent holes. |
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| leaves, and trash around |
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| mandrels. |
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| Mower blades will | 1. | Obstruction in clutch | 1. | Remove obstruction. |
| not rotate |
| mechanism. |
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| 2. | Worn/damaged mower drive | 2. | Replace mower drive belt. |
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| belt. |
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| 3. | Frozen idler pulley. | 3. | Replace idler pulley. |
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| 4. | Frozen blade mandrel. | 4. | Contact a qualified service |
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| center/department. |
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