TROUBLESHOOTING | ||||
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| TROUBLESHOOTING GUIDE |
| Observe Safety Guidelines | |
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| detailed in the beginning of this manual. | ||
| PROBLEMS | POSSIBLE AREAS OF | RECOMMENDED | |
| (SYMPTOMS) | MISADJUSTMENT(S) | COURSE OF ACTION | |
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| OUTPUT PROBLEMS |
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| Machine has no output – fans run | 1. Make sure that the machine |
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| – display is on. | was powered up with a properly |
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| installed overlay. (With no overlay |
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| on the machine or an invalid over- |
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| lay, the machine will have no out- |
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| put.) |
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| 2. Check to see if the Limits or |
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| Setup overlay is installed on the |
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| front panel. These two overlays |
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| can not be used for welding. |
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| 3. Check for proper input voltage |
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| (per machine nameplate). |
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| 4. Make certain the reconnect |
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| panel is configured properly. |
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| 5. Check that when the trigger is |
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| pulled on the wire feeder, the wire |
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| feeder’s voltage display changes | If all recommended possible areas | |
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| to indicate arc voltage. If this does | of misadjustments have been | |
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| not happen, feeder may be faulty. | checked and the problem per- | |
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| 6. Check feeder control cable for | sists, contact your local Lincoln | |
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| Authorized Field Service Facility. | ||
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| loose or faulty connections. | ||
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| 7. If the machine is connected for |
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| 380 VAC or higher and has not |
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| been used for a long period of |
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| time, the capacitors may require |
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| “conditioning.” Let the machine |
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| run at an idle state (no load) for 30 |
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| minutes. |
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| Machine regularly overheats – yel- | 1. Welding application may |
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| low light (LED) on the front panel |
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| exceed recommended duty cycle. |
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| glows, indicating a thermal over- |
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| load. The fans run and the display | 2. Dirt and dust may have clogged |
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| is on. | the cooling channels inside the |
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| machine. Refer to the |
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| Maintenance Section of this man- |
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| ual. |
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| 3. Air intake and exhaust louvers |
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| may be blocked due to inade- |
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| quate clearance around machine. |
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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, con- tact your local authorized Lincoln Electric Field Service Facility for technical assistance.
