| TROUBLESHOOTING | |||
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| Observe all Safety Guidelines detailed throug out this manual | |||
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| PROBLEMS |
| POSSIBLE AREAS OF | RECOMMENDED |
| (SYMPTOMS) |
| MISADJUSTMENTS | COURSE OF ACTION |
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| PROBLEMS |
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Welding current too great or too | 1. | Exciter output low causing low |
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small compared to indication on the |
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dial. |
| tion. | If all recommended possible areas | |
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| 2. Operating speed too low or high. | of misadjustment have been | |
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| checked and the problem persists, |
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| Contact your local Lincoln |
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Arc continuously pops out. | 1. | “Current Range Selector” switch | Authorized Field Service Facility. | |
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| may be set at an intermediate |
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Flashing the exciter field consists of passing current through the fields using an external source of 6 to 125 volts of DC power from a storage battery or DC generator. If using a DC generator, keep the generator turned off except when actually applying the flashing current. To flash the fields:
1.Turn the welder off. Raise one exciter brush off the commutator.
2.On Lincoln welders, attach the positive lead from the external DC source to the right hand brushholder.
3.Carefully holding an insulated section of the negative lead from the DC source, touch its lug or clamp to the left hand brushholder for five seconds. Pull it away quickly to minimize arcing.
Remove the lead from the right hand brushholder, replace the brush on the commutator, start the welder and the generator voltage should build up.
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.
JULY97 | PIPELINER 200D |
