| TROUBLESHOOTING |
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| Observe all Safety Guidelines detailed througout this manual | |||||
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| PROBLEMS |
| POSSIBLE AREAS OF |
| RECOMMENDED |
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| (SYMPTOMS) |
| MISADJUSTMENTS |
| COURSE OF ACTION |
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| PROBLEMS |
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Frequent occurrence of contact tip | 1. | Improper welding parameters or | 1. | See welding wire literature for |
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burnback. |
| technique (example: ESO is too |
| proper settings |
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| short). |
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| 2. | Wire may be feeding intermittent- | 2. | See symptoms on intermittent or |
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| ly. |
| sluggish wire feed |
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Poor weld bead appearance (porosi- | 1. | No gas flow. | 1. | See symptom “Low or no gas |
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ty or dull gray oxidized surface). |
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| flow”. |
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| 2. | Low gas flow. | 2. | See symptom “Low or no gas |
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| flow”. |
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| 3. | Improper or contaminated shield- | 3. | Check that the gas supplyʼs label- |
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| ing gas. |
| ing reads 100% argon. |
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| Temporarily use alternate, known |
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| gas supply and check for appear- |
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| ance improvement. |
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| 4. | Welding in a windy environment. | 4. Erect a wind shield or move to a |
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| 5. | Improper electrode polarity. | 5. | Reconnect machineʼs welding |
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| output to proper electrode polarity |
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| 6. | Improper welding parameters or | 6. | See welding wire literature for |
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| technique |
| proper settings |
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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 your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.