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| TROUBLESHOOTING |
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| Observe all Safety Guidelines detailed throughout this manual | ||||||||
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| PROBLEMS |
| POSSIBLE AREAS OF |
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| (SYMPTOMS) |
| MISADJUSTMENT(S) |
| COURSE OF ACTION | ||||||
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| OUTPUT PROBLEMS |
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| Machine won’t produce full output. | 1. | Input voltage may be too low, |
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| limiting output capability of the |
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| power source. Make certain that |
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| the input voltage is proper, |
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| according to the Rating Plate |
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| located on the rear of the |
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| machine. |
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| 2. | Input may be “single phased”. |
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| Make certain the input voltage is |
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| proper on all three Input lines. |
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| 3. | Secondary current or voltage not |
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| be properly calibrated. Check |
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| values displayed on the Power |
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| Feed 10/11 verses readings on |
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| an external meter. |
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| Auxiliary receptacle is “dead” no |
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| 1. | Circuit breaker CB2 (on case |
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| auxiliary voltage . |
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| front) may have opened. Reset. |
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| 2. | Circuit breaker CB4 (in recon- |
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| nect area) may have opened. |
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| If all recommended possible areas |
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| Reset. |
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| of misadjustments have been |
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| General degradation of the weld |
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| 1.Check for feeding problems, bad |
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| checked and the problem persists, |
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| performance |
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| connections, excessive loops in |
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| contact your local Lincoln |
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| cabling, etc. |
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| 2. | Verify weld mode is correct for |
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| Authorized Field Service Facility. |
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| processes. |
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| 3. | The power source may require |
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| calibration. |
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| 4. | Check the actual current dis- |
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| played on the Power Feed 10 |
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| vs. actual current measured via |
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| external meter. |
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| 5. | Check the actual voltage dis- |
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| played on the Power Feed 10 |
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| vs. actual voltage measured via |
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| external meter. |
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| 6. | Check the actual WFS displayed |
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| on the Power Feed 10 vs. actual |
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| WFS measured via external |
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| meter. |
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| Excessively long and erratic arc. |
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| 1. | Check for proper configuration |
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| and implementation of voltage |
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| sensing circuits. |
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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, con- tact your local authorized Lincoln Electric Field Service Facility for technical assistance.
