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| TROUBLESHOOTING & REPAIR |
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| TROUBLESHOOTING GUIDE |
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| Observe Safety Guidelines | |
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| detailed in the beginning of this manual. | |||
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| PROBLEMS | POSSIBLE AREAS OF | RECOMMENDED | ||
| (SYMPTOMS) | MISADJUSTMENT(S) | COURSE OF ACTION | ||
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| WELDING PROBLEMS |
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| The welding arc is loud and spat- | 1. The current setting may be too | 1. | Check the engine speed. High | |
| ters excessively. | high for the electrode and |
| idle speed should be 1800 | |
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| process. |
| RPM. | |
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| 2. The polarity may be wrong for | 2. | Check the DC generator brush- | |
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| the electrode and process. |
| es for good commutation and | |
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| alignment. Contact the Lincoln | |
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| Electric Service Dept. at | |
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| (WELD). | |
The welding arc frequently “pops 1. | The Fine Current Control 1. | Check the engine speed. High | ||
out.” | Rheostat may be set too low for | idle speed should be 1800 | ||
| the process and electrode. | RPM. |
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2. | Check the welding cables for 2. | The Current Range selector | ||
| loose or faulty connections. | switch may be faulty. Check for | ||
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| proper operation. |
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| 3. | Check | the | DC generator |
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| brushes for good commutation | ||
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| and alignment. | Contact the | |
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| Lincoln Electric Service Dept. at | ||
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| 9353 (WELD). |
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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, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 216-
