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| TROUBLESHOOTING & REPAIR | ||||
| Observe all Safety Guidelines detailed throughout this manual |
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| PROBLEMS |
| POSSIBLE AREAS OF | RECOMMENDED |
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| MISADJUSTMENTS(S) | COURSE OF ACTION | |
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FUNCTION PROBLEMS
The actual volts reading does NOT match the set volts reading within a few tenths of a volt. One reading may be erratic. The
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2.Make sure the shutdown “BYPASS” pins are not jumpered together on the
3.Check the voltage sensing leads for continuity. (zero ohms). #21 lead should have continuity to the work piece and #67 lead should have continuity to the wire feed head assembly. See wiring dia- gram.
4.Put the Lincoln welding power source in the machine control mode. Check to see if the power supply can be set for the arc volt- age required for the process. If not, the power supply may be faulty.
1.If the actual reading is the prob- lem check the actual volts switch and associated leads. See wiring diagram.
2.If the set reading is the problem check the set volts switch and the asociated leads. See wiring dia- gram.
3.Perform the Voltmeter Accuracy
Test
4.Perform the Meter Circuit
Accuraty Test.
5.The voltage board may be faulty.
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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
