TROUBLESHOOTING
Observe Safety Guidelines
detailed in the beginning of this manual.
Troubleshooting Guide
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| PROBLEMS |
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| POSSIBLE AREAS OF |
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| (SYMPTOMS) |
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| MISADJUSTMENT(S) |
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| OUTPUT PROBLEMS |
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| Major Physical or Electrical |
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| 1. | Contact your local Lincoln |
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| Damage is Evident. |
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| Authorized Field Service Facility |
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| No generator power or welding |
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| 1. | Check brushes for wear. See |
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| output. |
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| Maintenance section. |
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| 2. | Check for loose or faulty |
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| connections at brush holders. |
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| 3. | Open lead in flashing or field |
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| circuit. |
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| 4. | Rheostat (R1) lead broke. |
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| 5. | Dirty slip rings. |
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| 6. | Faulty rheostat (R1). |
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| 7. | Faulty field bridge rectifier (D1). |
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| 8. | Faulty field capacitor (C1). |
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| 9. | Faulty stator field winding. |
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| 10. Faulty rotor. |
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| Generator power is available |
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| 1. | Loose connection to output stud. |
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| but unit will not weld. |
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| 2. | Work not connected. |
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| 3. | Electrode holder loose. |
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| 4. | No open circuit voltage at output |
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| studs. Open lead in weld circuit. |
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| 5. | Faulty output bridge rectifier. |
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| 6. | Faulty choke (L1). |
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| Unit will weld but low or no |
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| 1. | Circuit breaker is open. |
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| generator power is available. |
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| 2. | Loose or open connection with |
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| electrical |
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| 3. | Current control dial not at "MAX" |
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| 4. | No open circuit voltage at |
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| receptacle. |
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| No auxiliary power but machine has |
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| 1. | Check CB1 and CB2 - Reset if |
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| weld output |
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| tripped. |
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RECOMMENDED COURSE OF ACTION
If all recommended possible areas of misadjustment have been checked and the problem persists,
Contact your local Lincoln Authorized Field Service Facility.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
– 22 – | WELDANPOWER 125 |
