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TROUBLESHOOTING | ||
| Observe all Safety Guidelines detailed throughout this manual |
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PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
Weld and Arc Quality Problems (Continued)
Wire burns back to tip at the end of | 1. | Burnback Time | 1. | Reduce burnback time and/or |
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the weld. |
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| work point. |
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Machine output shuts down during a | 1. | Secondary current limit has been | 1. | Adjust procedure or reduce load |
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weld. |
| exceeded, and the machine shuts |
| to lower current draw from the |
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| down to protect itself. |
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| 2. | System Fault | 2. | A |
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| rupt welding. This condition will |
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| also result in a status light blink- |
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| ing. See the Status Light section |
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| for more information. |
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Machine wonʼt produce full output. | 1. | Input voltage may be too low, lim- | 1. | Make certain that the input voltage |
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| iting output capability of the power |
| is proper, according to the Rating |
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| source. |
| Plate located on the rear of the |
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| machine. |
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| 2. | On 460 or 575 the input may be | 2. Verify all 3 phases are present. |
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| single phase. |
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| 3. | Machine calibration. | 3. | Calibrate secondary current and |
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| voltage. |
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Excessively long and erratic arc. | 1. | Wire feed problem. | 1. | Check for feeding problems. Make |
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| sure proper gear ratio has been |
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| selected. |
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| 2. | Loss of, or improper Shielding | 2. | Verify gas flow and type are cor- |
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| Gas |
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| 3. | Machine calibration. | 3. | Calibrate secondary current and |
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| voltage. |
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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 your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
POWER WAVE® S350