| TROUBLESHOOTING | ||||
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| Observe all Safety Guidelines detailed throughout this manual | ||||
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| PROBLEMS |
| POSSIBLE | RECOMMENDED | |
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| CAUSE | COURSE OF ACTION | |
| PROBLEMS IN | TIG WELDING |
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Oxidation | 1. lnsufficient gas. |
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| 2. | No protection on the back side. |
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Tungsten inclusions | 1. lncorrect electrode sharpening. |
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| 2. | Electrode too small. |
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| 3. | Operating failure (contact of the |
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| tip with the workpiece). |
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Porosity | 1. Dirt on the edges. |
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| 2. | Dirt on the filler material. |
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| 3. | Excessive travel speed. | If all recommended possible areas of | |
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| 4. | Current intensity too low. | ||
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| misadjustment have been checked | |||
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| 5. | Insuffient gas flow rate | ||
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| and the problem persists, Contact | |||
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Hot cracking | 1 Unsuitable filler material. | your local Lincoln Authorized | |||
Field Service Facility. | |||||
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| 2. | High heat supply. | ||
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| 3. | Dirty materials. |
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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
