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| TROUBLESHOOTING |
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| Observe all Safety Guidelines detailed throughout this manual | ||||||||
| TROUBLESHOOTING GUIDE |
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| Observe Safety Guidelines | |||||
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| detailed in the beginning of 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 often “noodle welds” (out- | Secondary current limit has been |
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| put is limited to approximately 100 |
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| exceeded, and the machine has |
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| amps) when running a particular |
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| phased back to protect itself. |
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| procedure |
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| Adjust procedure or reduce load to |
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| lower current draw from the |
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| machine. |
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| Machine won’t produce full output. |
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| 1. Input voltage may be too low, |
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| limiting output capability of the |
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| power source. Make certain |
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| that the input voltage is prop- |
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| er, according to the Rating |
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| Plate located on the rear of |
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| the machine. |
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| 2. | Input may be “single phased”. |
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| Make certain the input voltage |
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| is proper on all three input |
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| lines. |
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| For no apparent reason, the weld- |
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| 1. | Check for proper Wire Feed |
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| If all recommended possible areas |
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| ing characteristics have changed. |
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| Speed setting. In CV MIG |
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| of misadjustments have been |
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| and FCAW modes, check for |
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| checked and the problem persists, |
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| proper Voltage setting. In the |
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| contact your local Lincoln |
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| MIG/MAG pulse modes, |
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| check the Trim setting. These |
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| Authorized Field Service Facility. |
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| controls are on the wire feed- |
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| er. |
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| 2. | Check for proper shielding |
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| gas mix and flow. |
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| 3. | Check for loose or faulty weld |
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| cables and cable connections. |
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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. |
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| Reset. |
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| 2. | Circuit breaker CB4 (in recon- |
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| nect area) may have opened. |
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| Reset. |
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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.
POWER WAVE 455
