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| TROUBLESHOOTING AND REPAIR | |||||
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Troubleshooting Guide – See Wiring Diagrams for location of specified | Observe Safety Guidelines | |||||
components and for troubleshooting of specific circuits. | detailed in the beginning of this manual. | |||||
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PROBLEMS |
| POSSIBLE AREAS OF |
| RECOMMENDED |
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(SYMPTOMS) |
| MISADJUSTMENT(S) |
| COURSE OF ACTION |
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| OUTPUT PROBLEMS (Continued) |
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(continued from previous page) | 3. Check the gun trigger leads. |
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| Leads #324 to #325 should |
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| have continuity (zero ohms) |
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| when the gun trigger is activat- |
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| ed. If not, the gun trigger or |
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| cable may be faulty. Check or |
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| replace. |
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| 4. If a spool gum option kit is |
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| installed, check to make sure it |
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| is set to the “normal” position if |
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| using the POWER MIG® 215 |
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| built in wire feeder. |
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When the gun trigger is activated | 1. Make sure the gun cable and |
| 1. Check the output selector | |||
and the wire feeds normally, but | work cables are connected |
| switch for proper operation and | |||
there is no open circuit voltage. | properly and in good condition. |
| good connections. |
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| 2. Make sure the output selector |
| 2. Perform the Output Contactor | |
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| switch is in a good condition |
| Test. |
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| position and not between posi- |
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| tions. |
| 3. Perform the Output Bridge | |
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| Rectifier Test. |
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| 4. Perform the Main Transformer | |
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| Test. |
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| 5. Check the heavy current carry- | |
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| ing leads between the output | |
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| selector switch, output contac- | |
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| tor, output bridge rectifier, and | |
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| the output terminals for loose or | |
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| faulty connections. | See Wiring |
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| Diagram. |
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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 the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call
