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TROUBLESHOOTING & REPAIR |
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Observe Safety Guidelines |
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| TROUBLESHOOTING GUIDE | |
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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| OUTPUT PROBLEMS |
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The engine starts and runs at cor- | 1. | Check the 15 amp fuse located | 1. Check the “flashing” diode and | ||
rect speed, but there is no, or very |
| on the inside of the front control | associated | leads connected | |
low, welder output voltage. There |
| panel. |
| between the generator brushes | |
is no AC auxiliary output voltage. | 2. If the welder output is zero volts, | and the exciter alternator brush- | |||
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| the fields may need to be |
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| flashed. | See Flashing the | 2. Check the field diode bridge | |
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| Fields in this section. | and associated leads and con- | ||
| 3. | Check for | loose or missing | nections. | See the Wiring |
| Diagram. |
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| brushes in the exciter alternator |
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| and welding generator. | 3. Perform the Alternator Rotor | ||
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| Test. |
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| 4. Check for “opens” or shorted | |
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| turns in the alternator stator | |
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| windings. The coils must NOT | |
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| be grounded to the stator lami- | |
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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
