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| TROUBLESHOOTING |
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| Observe all Safety Guidelines detailed throughout this manual |
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| PROBLEMS |
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| POSSIBLE CAUSE |
| RECOMMENDED |
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| (SYMPTOMS) |
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| COURSE OF ACTION |
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| Tip seizes in diffuser. |
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| 1. | Tip overheating due to pro- |
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| longed or excessive high current |
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| and/or duty cycle welding. |
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| Note: A light application of high |
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| temperature antiseize lubri- |
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| cant (such as Lincoln E2067 |
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| Graphite Grease) may be |
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| applied to tip of threads. |
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| Motor does not turn when trigger is | 1. | The wire drive motor may be |
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| pulled. |
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| 2. | overloaded. |
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| Fault occurred |
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| The drive motor does not turn | 1. | Fault occurred |
| If all recommended possible areas | ||||||||
| although arc voltage is present and |
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| the gas solenoid is on. |
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| of misadjustment have been | |||
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| checked and the problem persists, | ||
| No control of wire feed speed | 1. | Damaged leads to the motor |
| Contact your local Lincoln | ||||||||
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| Authorized Field Service Facility. | |||||||||||
| motor. Gas solenoid operates |
| tachometer. |
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| properly and arc voltage is present. | 2. | Damaged tachometer. |
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| Wire feed speed can be set through |
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| ArcLink but WFS is erratic. |
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| Wire feed motor turns and gas sole- | 1. | Power source is unable to pro- |
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| noid operates, but no arc voltage is |
| vide arc voltage because of ther- |
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| present. |
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| mal shutdown or other failure. |
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| Speed does not change when weld | 1. |
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| current flows. |
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| 2. | to the same value. |
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| Fault occurred |
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| Erratic arc length, especially with a | 1. | The work sense lead (#21) or the |
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| pulse or STT program. Welding |
| electrode sense lead (#67) may |
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| may or may not vary from normal |
| have intermittent or poor connec- |
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| procedure. Wire feeds properly. | 2. | tions. |
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| Improper power source selection |
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| 3. | on the control P.C. board. |
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| Welding Program Error. |
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| Wire feed speed is consistent and | 1. | DIP switch is incorrectly set for |
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| adjustable, but operates at the |
| the wrong wire drive or gear |
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| wrong speed. |
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| 2. | ratio. |
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| Fault occurred |
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| CAUTION |
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| If for any reason you do not unders | tand 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. |
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| POWER FEED 10 / R |
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