TROUBLESHOOTING
WARNING
Before performing any type of maintenance/service, disengage all controls and stop the engine. Wait until all moving parts have come to a complete stop. Disconnect spark plug wire and ground it against the engine to prevent unintended starting. Always wear safety glasses during operation or while performing any adjustments or repairs.
This section addresses minor service issues. To locate the nearest Sears Service Center or to schedule service, simply contact Sears at
Problem |
| Cause |
| Remedy |
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Engine fails to start | 1. | Throttle lever not in correct starting position | 1. | Move throttle lever to START/RUN position. |
| 2. | Choke not in ON position | 2. | Move CHOKE to ON position. |
| 3. | Spark plug wire disconnected | 3. | Connect wire to spark plug. |
| 4. | Faulty spark plug | 4. | Clean, adjust gap, or replace. |
| 5. | Fuel tank empty or stale fuel | 5. | Fill tank with clean, fresh gasoline. |
| 6. | Cannot pull recoil cord | 6. | Obstruction lodged in impeller. Disconnect spark |
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| plug wire and remove lodged object. |
| 7. | Safety switch not depressed | 7. | Safety switch must be depressed by the front tab on |
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| the bag handle when securing the bag. |
| 8. | Safety switch wire is not connected to | 8. | Connect safety switch wire to engine connector and |
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| engine or not properly grounded |
| ground to mounting bracket. |
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Engine runs erratically | 1. | Unit running on CHOKE | 1. | Move choke lever to OFF position. |
| 2. | Spark plug wire loose | 2. | Connect and tighten spark plug wire. |
| 3. | Stale fuel | 3. | Fill tank with fresh gasoline. |
| 4. | Water or dirt in fuel system | 4. | Drain fuel. Refill with fresh fuel. |
| 5. | Dirty air cleaner | 5. | Clean or replace air cleaner filter. |
| 6. | Low engine RPM | 6. | Always run engine at full throttle. |
| 7. | Carburetor out of adjustment | 7. | Contact your Sears Parts & Repair Center. |
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Engine overheats | 1. | Engine oil level low | 1. | Fill engine with proper amount and type of oil. |
| 2. | Air flow restricted | 2. | Clean grass clippings and debris from around the |
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| engine’s cooling fins and blower housing. |
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Engine hesitates at high RPMs | 1. | Spark plug gap set too close | 1. | Remove spark plug and adjust gap. |
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Engine idles poorly | 1. | Fouled spark plug | 1. | Replace spark plug and adjust gap. |
| 2. | Dirty air cleaner | 2. | Replace air cleaner cartridge. |
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Excessive vibration | 1. | Loose parts or damaged impeller | 1. | Stop engine immediately and disconnect spark plug |
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| wire. Contact your Sears Parts & Repair Center. |
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Unit does not discharge | 1. | Discharge area clogged | 1. | Stop engine immediately and disconnect spark plug |
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| wire. Clean flail screen and inside of discharge open- |
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| ing. |
| 2. | Foreign object lodged in impeller | 2. | Stop engine and disconnect spark plug wire. Remove |
| 3. | Low engine RPM |
| lodged object. |
| 4. | Vacuum bag is full | 3. | Always run engine at full throttle. |
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| 4. | Empty bag. |
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Rate of discharge slows | 1. | Low engine RPM | 1. | Always run engine at full throttle. |
considerably or composition of | 2. | Chipper blade dull | 2. | Replace chipper blade or contact your Sears Parts & |
discharged material changes |
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| Repair Center. |
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Unit fails to propel itself or | 1. | Drive control cable out of adjustment | 1. | Follow adjustment procedure in Service & Mainte- |
slips when drive control is |
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| nance section. |
engaged | 2. | Drive belt worn or damaged | 2. | Contact your Sears Parts & Repair Center. |
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