TROUBLESHOOTING TABLE
WARNING: Always stop unit and disconnect from the power source be- fore performing all of the recommended remedies below except remedies that require unit to be operating.
| TROUBLE | CAUSE | REMEDY |
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| Chain does | 1. Chain tension incorrect. | 1. | See “Check Chain Tension” in |
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| not move | 2. Guide bar rails pinched. |
| Maintenance section. |
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| when trigger | 2. | Repair or replace. |
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| switch is | 3. Trigger switch failure. | 3. | Contact an authorized service |
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| engaged. | 4. Circuit breaker tripped/ |
| dealer. |
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| 4. | Reset circuit breaker or replace |
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| fuse failure. |
| fuse. |
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| Chain clat- | 1. Chain tension incorrect. 1. See “Check Chain Tension” in |
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| ters or cuts |
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| Maintenance Section. |
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| roughly. | 2. Cutters damaged. | 2. | Contact an authorized service |
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| 3. Chain worn. |
| dealer. |
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| 3. | Resharpen or replace chain. |
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| 4. Cutters dull, improperly | 4. | See “Chain Sharpening” in |
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| sharpened, or depth |
| Service and Adjustments section. |
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| gauges too high. |
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| 5. Sprocket worn. | 5. | Contact an authorized service |
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| dealer. |
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| Chain stops | 1. Chain cutter tops not | 1. | See “Chain Sharpening” in |
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| during cut. | filed flat. |
| Service and Adjustments section. |
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| 2. Guide bar burred or | 2. | Repair or replace guide bar. |
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| bent; rails uneven. |
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| Oil inade- | 1. Oil tank empty. | 1. Fill oil tank. |
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| quate for bar | 2. Oil outlet clogged. | 2. Contact an authorized service |
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| and chain |
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| dealer. |
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| lubrication. | 3. Guide bar oil hole | 3. Remove bar and clean. |
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| blocked. |
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| Chain cuts | 1. Cutters damaged on | 1. See “Chain Sharpening” in |
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| at an angle. | one side. |
| Service and Adjustments section. |
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2.Chain dull on one side. 2. See “Chain Sharpening” in Service and Adjustments section.
3.Guide bar bent or worn. 3. Replace guide bar.
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