| TROUBLESHOOTING | |||
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| Observe all Safety Guidelines detailed throughout this manual | |||
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| PROBLEMS | POSSIBLE AREAS OF | RECOMMENDED |
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| (SYMPTOMS) | MISADJUSTMENTS | COURSE OF ACTION |
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TIG WELDING PROBLEMS
No high frequency. Machine is in | 1. | If the machine location is in a |
the TIG Mode and has normal out- |
| highly dirty environment with |
put. |
| conductive contaminants, check |
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| and clean the spark gap with a |
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| low pressure air stream per the |
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| maintenance instructions. |
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No gas flow when Amptrol is activat- | 1. | Gas supply is empty or not |
ed in the TIG Mode. Machine has |
| turned on. |
output - fan runs. A “Click” can be |
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heard indicating that the gas sole- | 2. | Flow regulator may be set too |
noid valve is operating. |
| low. |
| 3. | Gas hose may be pinched. |
| 4. | Gas flow may be blocked with |
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| dirt. Check filter screen inside |
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| gas inlet fitting to solenoid valve. |
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| Use filters to prevent reoccur- |
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| rence. |
| 5. | Consult your local welder/gas |
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| distributor. |
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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 |
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| tungsten. |
| 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 |
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| size. See the Table B.1 in the |
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| Operation Section of this manu- |
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| al. |
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Contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance.
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.