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TROUBLESHOOTING AND REPAIR |
TROUBLESHOOTING GUIDE - Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS |
| POSSIBLE AREAS OF |
| RECOMMENDED | |||
(SYMPTOMS) |
| MISADJUSTMENTS(S) |
| COURSE OF ACTION | |||
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| OUTPUT PROBLEMS |
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Low weld output and low auxiliary | 1. The generator brushes may be | 1. | Perform the Rotor Voltage Test. | ||||
output. |
| worn. See the Maintenance sec- | 2. | If the rotor voltage is low, the field | |||
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| tion | of this | manual or | contact | ||
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| your | local | Lincoln | Electric |
| capacitor (C1) or bridge (D1) may |
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| be faulty. Test or replace. | ||||
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| Authorized Field Service Facility. |
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| 2. | The | engine | RPM may | be low. | 3. | Check the rheostat (R1). Normal |
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| resistance is 3.3 ohm. |
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| 4. | The rotor may be faulty. Perform |
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| the Rotor Resistance Test. |
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| 5. | The engine RPM may be low. |
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| Perform the Engine Throttle |
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| Adjustment Test. |
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| 6. | If engine idle RPM is okay, the |
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| engine may have lost horsepow- |
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| er and be in need of major repair. |
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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
POWERARC® 5500
