Problem |
| Cause |
| Remedy |
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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