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| TROUBLESHOOTING AND REPAIR |
TROUBLESHOOTING GUIDE - Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS | POSSIBLE AREAS OF |
| RECOMMENDED |
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(SYMPTOMS) | MISADJUSTMENTS(S) |
| COURSE OF ACTION | |||
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| WELDING PROBLEMS |
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The welding arc is “cold.” The | 1. Check for loose or faulty con- | 1. | Check for the correct open cir- | |||
engine runs normally (3700 RPM, no | nections at the weld output |
| cuit voltage (OCV) at the welder | |||
load). Auxiliary power is functioning | terminals and welding cable con- |
| output terminals – 62 VAC is nor- | |||
normally. | nections. |
| mal. |
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| 2. The welding cable may be too |
| If the correct voltage is present | |||
| long or coiled, causing an exces- |
| at the output terminals, check for | |||
| sive voltage drop. |
| loose connections on the heavy | |||
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| POWERARC® 5500. | See the | ||
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| Wiring Diagram. |
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| 2. | If the OCV is low at the welder | |||
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| output | terminals, | perform | |
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| Engine | Throttle | Adjustment | |
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| Test. |
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| 3. | Check for shorted or grounded | |||
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| windings in the reactor (L1) and | |||
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| also in | the | main | stator. |
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| See the Wiring Diagram. |
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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
