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| TROUBLESHOOTING & REPAIR |
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| TROUBLESHOOTING GUIDE | Observe Safety Guidelines | |
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| detailed in the beginning of this manual. | |
PROBLEMS | POSSIBLE AREAS OF | RECOMMENDED | |
(SYMPTOMS) | MISADJUSTMENT(S) | COURSE OF ACTION | |
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| FUNCTION PROBLEMS |
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The wire feeder does not work | 1. Check circuit breaker CB2. | 1. | Check for the presence of |
when connected to the welder | Reset if tripped. |
| 115VAC at leads #31A and #32. |
amphenol. | 2. The wire feeder control cable |
| See Wiring Diagram. |
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| may be faulty. Check or | 2. | Check for the presence of |
| replace. |
| 42VAC at leads #31B to #42. |
| 3. The wire feeder may be faulty. |
| See Wiring Diagram. |
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| Check or replace. | 3. | If any of the above voltages are |
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| missing or low, then check the |
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| circuit breaker CB2 for proper |
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| operation. |
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| 4. | The RF bypass board may be |
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| faulty. Check or replace. |
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| 5. | Perform the Auxiliary and Field |
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| Winding Test. |
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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
RANGER
