TROUBLESHOOTING
Problem | Possible Cause(s) | Corrective Action | ||
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Engine fails to start | 1. | Fuel tank empty or stale fuel. | 1. | Fill tank with clean, fresh gasoline. Fuel will not |
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| last over thirty days unless a fuel stabilizer is |
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| added. |
| 2. | Spark plug wire disconnected. | 2. | Connect wire to spark plug. |
| 3. | Cannot pull recoil cord. | 3. | Obstruction lodged in impeller. Disconnect |
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| spark plug wire and remove lodged object. |
| 4. | Choke not in ON position. | 4. | Move CHOKE to ON position. |
| 5. | Blocked fuel line. | 5. | Clean fuel line. |
| 6. | Engine not primed properly. | 6. | Prime engine. |
| 7. | Faulty spark plug. | 7. | Clean, adjust gap, or replace. |
| 8. | Safety switch not depressed. | 8. | Safety switch must be depressed by the front |
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| tab on the bag handle when securing the bag. |
| 9. | Safety switch wire is not | 9. | Connect safety switch wire to engine connector |
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| connected to engine or not |
| and ground to mounting bracket. |
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| properly grounded. |
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Loss of power; | 1. | Spark plug wire loose. | 1. | Connect and tighten spark plug wire. |
operation erratic | 2. | Unit running on CHOKE. | 2. | Move choke lever to OFF position. |
| 3. | Blocked fuel line or stale fuel. | 3. | Clean fuel line; fill tank with clean fresh |
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| gasoline. Fuel will not last over thirty days |
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| unless a fuel stabilizer is used. |
| 4. | Water or dirt in fuel system. | 4. | Disconnect fuel line at carburetor to drain fuel |
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| tank. Refill with fresh fuel. |
| 5. | Carburetor out of adjustment. | 5. | Contact your Sears Service Center. |
| 6. | Low engine RPM. | 6. | Always run engine at full throttle. |
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Too much vibration | 1. | Loose parts or damaged | 1. | Stop engine immediately and disconnect spark |
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| impeller. |
| plug wire. Have unit serviced by a Sears |
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| Service Center. |
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Engine overheats | 1. | Carburetor not adjusted | 1. | Contact your Sears Service Center. |
| 2. | Engine oil level low | 2. | Fill crankcase with proper selection of oil. |
| 3. | Dirty air cleaner. | 3. | Clean or replace air cleaner. |
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Occasional skip | 1. | Spark plug gap too close. | 1. | Adjust gap to.030”. |
(hesitates) at high |
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speed. |
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Unit does not | 1. | Discharge chute clogged. | 1. | Stop engine immediately and disconnect spark |
discharge |
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| plug wire. Clean flail screen and inside of |
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| discharge opening. See Maintenance section of |
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| this manual. |
| 2. | Foreign object lodged in | 2. | Stop engine immediately and disconnect spark |
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| impeller. |
| plug wire. Remove lodged object. |
| 3. | Low engine RPM. | 3. | Always run engine at full throttle. |
| 4. | Vacuum bag is full. | 4. | Empty bag. |
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Rate of discharge | 1. | Low engine RPM. | 1. | Always run engine at full throttle. |
slows considerably or | 2. | Chipper blade dull. | 2. | Replace chipper blade or see your Sears |
composition of |
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| Service Center. |
discharged material |
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changes |
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NOTE: For repairs beyond the minor adjustments listed above, please contact your local Sears Service Center.
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