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TROUBLESHOOTING AND REPAIR | |||||||
Troubleshooting Guide – See Wiring Diagrams for location of specified | Observe Safety Guidelines | ||||||
components. See Wiring Diagrams for troubleshooting of specific circuits. |
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PROBLEMS |
| POSSIBLE AREAS OF |
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(SYMPTOMS) |
| MISADJUSTMENT(S) |
| COURSE OF ACTION | |||
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| FUNCTIONAL PROBLEMS |
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Major physical or electrical damage | Contact Lincoln Electric Service |
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is present. |
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When gun trigger is pulled |
| 1. Make sure power source is on | 1. Check for the presence of 115 | ||||
there is no wire feed, no gas |
| and supplying 115 VAC to the | VAC at the input control cable | ||||
flow, and no arc voltage from |
| wire feeder. |
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| receptacle. Pin “D” (#31) to Pin | ||
power source. |
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| “C” (#32). |
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| 2. Check | the 2.5 | Amp | circuit |
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| breaker. Reset if tripped. |
| 2. Test the R1 resistor. 2 Ohms - | ||
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| 25 Watts. |
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| 3. | Check | the Ground | Lead |
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| Protector - reset if necessary. | 3. Perform the Control Relay Test. | |||
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| 4. | Check the gun trigger circuit. | 4. Perform the Trigger Trans- | |||
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| former Test. |
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| 5. The control cable may be faulty. |
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| Repair or replace. |
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| 5. Check leads #524 and #525 for | |
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| continuity (zero Ohms) from the |
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| 6. | If a burnback or timer kit is | gun control cable receptacle to | |||
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| used, unplug J104 from the | the control board plug J102. | |||
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| control PC board and install the |
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| jumper | plug. | See | wiring |
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| diagram. If the problem is |
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| solved then the timer or |
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| burnback kit may be defective. |
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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
