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Observe Safety GuidelinesTROUBLESHOOTING & REPAIR |
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detailed in the beginning of this manual. | TROUBLESHOOTING GUIDE | ||||
PROBLEMS | POSSIBLE AREAS OF |
| RECOMMENDED |
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(SYMPTOMS) | MISADJUSTMENT(S) |
| COURSE OF ACTION |
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| ENGINE AND IDLE PROBLEMS |
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The engine will not develop full | 1. | The fuel may be old or contami- |
| 1. The engine may be in need of | |
power. |
| nated. Supply the engine with |
| adjustment or repair. |
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| fresh, clean fuel. |
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| 2. The fuel filter may be clogged; |
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| replace the filter if necessary. |
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| 3. The air filter may be clogged; |
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| replace if necessary. |
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The engine will not idle down to low | 1. | Make sure the idle switch is in |
| 1. Perform the Idle Solenoid | |
RPM. The machine has normal | 2. | the “AUTO IDLE” position. |
| Test. |
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weld output and auxiliary power. | Make sure there is no external |
| 2. Check for damaged wiring or | ||
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| load on the weld terminals or |
| faulty connections at idle sole- | |
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| the auxiliary power receptacles. |
| noid, the pull coil PC board, the | |
| 3. Check for mechanical restric- |
| run/stop switch, and the start | ||
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| tions in the idler solenoid link- |
| button. |
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| age. |
| 3. Check for loose or damaged | |
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| wiring or faulty connections at | |
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| leads #404 and #215. (Control | |
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| PC Board | |
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| Wiring diagram. |
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| 4. Set the idle switch in the | |
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| “AUTO” position. Set the mode | |
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| switch to the | |
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| tion. Make sure that no lead is | |
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| applied to either weld output or | |
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| the auxiliary output. |
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| 5. Start the machine and allow it to | |
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| run for about 30 seconds. |
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| 6. Manually move the idle solenoid | |
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| plunger to the idle position. If | |
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| the solenoid engages and holds | |
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| in the idle position, the pull coil | |
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| PC board is probably defective; | |
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| replace it. |
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
