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TROUBLESHOOTING & REPAIR |
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| detailed in the beginning of this manual. | TROUBLESHOOTING GUIDE |
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| Observe Safety Guidelines |
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| PROBLEMS |
| POSSIBLE AREAS OF | RECOMMENDED |
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| (SYMPTOMS) |
| MISADJUSTMENT(S) | COURSE OF ACTION |
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| MISC. WELD ISSUES |
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| An | 1. Check that the welding terminal | 1. Use a volt meter to check for the |
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| does function when connected to | switch is in the “WELD TERMI- |
| presents about 58 VDC open |
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| the weld output of the machine. | NALS ON” position. |
| circuit voltage (OCV) across the |
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| The machine operates normally in | 2. Check that the WELD MODE | 2. | output studs of the machine. |
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| switch in the correct position for | If the OCV is low, there may be |
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| AC auxiliary output. |
| the process being used, typical- |
| a problem with the mode switch. |
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| Perform the | CONTROL |
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| 3. Check for poor weld cable con- |
| MODE SWITCH RESISTANCE |
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| nections between the feeder |
| POTENTIOMETER | AND |
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| TEST | . |
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| and the welder output terminal, | 3. |
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| and between the work and the | If there is no OCV, see the trou- |
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| other weld output terminal. |
| bleshooting section for “No |
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| 4. Check that the wire feederʼs |
| welding output in any mode” |
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| work sensing lead is properly |
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| connected to the work piece, |
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| and is in good condition. |
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| 5. The wire feeder may be defec- |
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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
