TROUBLESHOOTING | ||
Observe all Safety Guidelines detailed throughout this manual | ||
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PROBLEMS | POSSIBLE | RECOMMENDED |
(SYMPTOMS) | CAUSE | COURSE OF ACTION |
TIG WELDING PROBLEMS
| No high frequency. Machine is in the | 1. | If the machine location is in a |
| TIG Mode and has normal output. |
| highly dirty environment with con- |
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| ductive contaminants, check and |
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| clean the spark gap with a low |
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| pressure air stream per the main- |
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| tenance instructions. |
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| No gas flow when Amptrol is activat- | 1. | Gas supply is empty or not turned |
| ed in the TIG Mode. Machine has |
| on. |
| output - fan runs. A “Click” can be | 2. | Flow regulator may be set too |
| heard indicating that the gas sole- |
| low. |
| noid valve is operating. |
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| 3. | Gas hose may be pinched. |
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| 4. | Gas flow may be blocked with |
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| dirt. Check filter screen inside gas |
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| inlet fitting to solenoid valve. Use |
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| filters to prevent reoccurrence. |
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| 5. | Consult your local welder/gas dis- |
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| tributor. |
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| When AC TIG welding, the arc is | 1. | Tungsten electrode may be too |
| erratic and there is a loss of “clean- |
| small for process. Use a larger |
| ing” of the work piece. |
| diameter tungsten or a pure tung- |
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| sten. |
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| 2. | If a helium blend is used as a |
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| shielding gas, then reduce the |
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| percentage of helium. |
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| The end of the tungsten electrode | 1. | The welding current is too high |
| melts away. |
| for the electrode type and/or size. |
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| See Electrode Amperage Ranges |
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| in the Operation Section of this |
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| manual. |
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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