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TROUBLESHOOTING AND REPAIR |
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Observe Safety Guidelines 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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| FUNCTION PROBLEMS |
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No current regulation in the Stick | 1. | Make sure the machine is | 1. The Superimposition Board may | |||
mode. Low open circuit voltage. |
| and configured correctly for the | be faulty |
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| Stick mode, |
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| 2. The Output Module Transistor | ||
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| Board may be faulty. See the | ||
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| Secondary | Output | Board |
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| Assembly | Test and | Wiring |
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| Diagram. |
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There is no response to changes to | 1. | Make sure the correct input volt- | 1. The Control/Display board may | |||
the output control settings. No cur- |
| age is applied to the machine. | be faulty. |
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rent regulation in all modes. |
| 230 or 115VAC. |
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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
