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TROUBLESHOOTING & REPAIR | ||||||
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| Observe all Safety Guidelines detailed throughout this manual |
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| PROBLEMS |
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| POSSIBLE | RECOMMENDED | |
| (SYMPTOMS) |
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| CAUSE | COURSE OF ACTION | |
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| OUTPUT | PROBLEMS | 1. Check for 40VDC at J81 leads | |||
| The feeder doesn’t power up - no | 1. The Power Feed 10M Single Wire | #540 and #500. If voltage is present, | |||
| display, no cold feed. |
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| Feeder power switch is OFF. Turn | replace P.C. BD. If voltage not pre- | |
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| the Power Feed 10M Single Wire | sent, check leads from J81 on BD. to | |
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| Feeder power switch ON. | Input 5 pin connector. | Refer to |
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| machine schematic. |
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| 2. | The Power Wave power source is |
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| OFF. Turn ON the Power Wave |
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| power source. |
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| 3. | The circuit breaker for the wire |
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| feeder on power source have |
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| tripped. Reset the circuit break- |
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| ers. |
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| 4. | The control cable may be loose or |
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| damaged. Tighten, repair or |
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| replace the control cable. |
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| 5. | The power switch is damaged. |
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| Replace the power switch. |
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| 1. Check for 6.5VDC with trigger | |
| No shielding gas. |
| 1. | The gas supply is OFF or empty. | ||
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| Verify the gas supply is ON and | pulled at J83 leads #553 and #554. If | |
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| flowing. | voltage is present replace solenoid. | |
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| If voltage is not present replace P.C. | |
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| 2. | The gas hose is cut or crushed. | BD. Refer to machine schematic. | |
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| Route the gas hose so it avoids |
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| sharp corners and make sure |
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| nothing is on top of it. Repair or |
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| replace damaged hoses. |
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| 3. | Dirt or debris is in the solenoid. |
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| Apply filtered shop at 80psi to the |
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| solenoid to remove dirt. |
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| 4. | There is a loose solenoid connec- |
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| tion. Remove the cover and check |
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| that all connections are in good |
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| condition. |
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| 5. The solenoid has failed. |
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department at