| TROUBLESHOOTING | |||
| Observe all Safety Guidelines detailed throughout this manual | |||
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| PROBLEMS |
| POSSIBLE | RECOMMENDED |
| (SYMPTOMS) |
| CAUSE | COURSE OF ACTION |
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| OUTPUT PROBLEMS |
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Major physical or electrical damage | 1. | Contact your local authorized |
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is evident when the sheet metal cov- |
| Lincoln Electric Field Service facil- |
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ers are removed. |
| ity for technical assistance. |
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The wire drive turns off periodically | 1. | The supply voltage for the |
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while operating on an engine drive. |
| is too low. |
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| If all recommended possible areas |
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No shielding gas flow. | 1. | The gas bottle empty. | of misadjustment have been | |
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| 2. | The gas hose is cut or clogged. | checked and the problem persists, |
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| 3. | The flow meter valve is closed. | Contact your local Lincoln |
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| 4. | The gas solenoid has failed | Authorized Field Service Facility. |
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| 5. | The feed head board has failed. |
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The shielding gas turns on sporadi- | 1. | The pressure in the gas line is |
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cally, or remains on all the time. |
| exceeding 80 psi (5.5 bar) |
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| 2. | The gas solenoid has failed. |
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FEEDING PROBLEM
The wire drive stops feeding wire | 1. | The motor has exceeded the cur- |
after about 10 seconds. |
| rent rating. |
| 2. | Check to make sure the electrode |
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| slides easily through the liner of |
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| the gun. |
| 3. | Verify that the spindle brake is not |
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| set too tight. |
| 4. | For best results, use only Lincoln |
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| electrodes. |
| 5. | Wait 10 minutes for the wire feed- |
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| er to cool. |
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The wire feed speed varies during | 1. | The drive rolls are slipping |
welding but the meter reading |
| because of feeding problems. |
remains constant | 2. | The |
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| of CV mode. |
| 3. | Reduce the spindle brake resis- |
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| tance. |
| 4. | Increase the amount of tension in |
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| the wire drive pressure arm. |
| 5. | For best results, use only Lincoln |
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| electrodes. |
| 6. | Verify on |
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| is set for CV welding. |
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The Wire Feed Speed Range is only | 1. The 83% wire feed speed dual | |
50 - 601 in/min ( 1.3 - 15.3 m/min). |
| procedure is activated with the |
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| high speed gear. Check dual proce- |
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| dure switch in gun. |
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If all recommended possible areas of misadjustment have been checked and the problem persists,
Contact your local Lincoln Authorized Field Service Facility.
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.