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TROUBLESHOOTING & REPAIR | |||||
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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Major physical or electrical dam- | 1. Contact your local Lincoln | 1. | Contact The Lincoln Electric | ||
age is evident. |
| Authorized Field | Service |
| Service Dept. (216) |
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| Facility. |
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No weld output and no auxiliary | 1. | Check brushes for wear. See | 1. | Perform the Rotor Voltage | |
power. Engine operates normally. |
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| Test. |
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| 2. | If the rotor voltage is low or |
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| 2. | Check for loose or faulty con- |
| missing, check for the proper | |
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| nections at brush holders. |
| flashing current. Perform the | |
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| Rotor Flashing Circuit Test. |
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| 3. | Perform the Rotor Resistance |
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| Test. |
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| 4. | The field capacitor (C1) or recti- |
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| fier bridge (D1) may be faulty. |
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| Test or replace. |
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| 5. | Test the rheostat (R1). Normal |
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| resistance is 3.3 ohms. |
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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
WELDANPOWER 125
