E-4 TROUBLESHOOTING
TROUBLESHOOTING GUIDE
Observe Safety Guidelines detailed in the beginning of this manual.
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| PROBLEMS |
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| POSSIBLE AREAS OF |
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| RECOMMENDED |
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| MISADJUSTMENT(S) |
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| COURSE OF ACTION |
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| WELDING PROBLEMS |
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| Arc is unstable – Poor starting |
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| 1. Check for correct input voltage |
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| to machine – 115vac. |
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| 2. | Check for proper electrode |
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| polarity for process. |
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| 3. | Check gun tip for wear or dam- |
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| age and proper size – Replace. |
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| Contact your local Lincoln |
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| 4. | Check for proper gas and flow |
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| Authorized Field Service Facility. |
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| rate for process. (For MIG only.) |
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| 5. | Check work cable for loose or |
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| faulty connections. |
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| 6. | Check gun for damage or |
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| breaks. |
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| 7. | Check for proper drive roll orien- |
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| tation and alignment. |
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| 8. | Check liner for proper size. |
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.