| TROUBLESHOOTING |
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| Observe all Safety Guidelines detailed througout this manual |
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| PROBLEMS | POSSIBLE CAUSE | RECOMMENDED |
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| (SYMPTOMS) | COURSE OF ACTION |
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FUNCTION PROBLEMS
1. Drive rolls turn, but wire will not | A. Gun cable kinked and/or twisted. |
feed or wire feeding is rough. |
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| B. Wire jammed in gun and cable. |
C.Incorrect drive rolls and guide tubes.
D.Gun cable liner dirty.
E. Worn drive rolls.
F. Electrode rusty and/or dirty.
G.Worn or improper size cable liner.
H.Partially flashed, melted, or improper size contact tip.
I. Incorrect diffuser
2. Variable or “hunting” arc. | A. Contact tip worn or incorrect size. |
| B. Worn or undersize ground cables |
| or poor ground connections. |
If all recommended possible areas of misadjustment have been checked and the problem persists,
Contact your local Lincoln Authorized Field Service Facility.
C.Loose electrode connections.
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.
MAGNUM® 450WC & 650WC
