TROUBLESHOOTING | ||
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| Observe all Safety Guidelines detailed throughout this manual |
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PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
1. Rough wire feeding or wire not | a. Gun cable kinked and/or twisted. | a. Inspect gun cable and replace if | |
feeding but drive rolls turning. |
| necessary. | |
| b. Wire jammed in gun and cable. | b. Remove wire from gun and cable | |
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| feed in new wire. Note any | |
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| obstructions in gun and cable. | |
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| Replace gun and cable if neces- | |
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| sary. | |
| c. Incorrect position of drive rolls with | c. See Wire Feed Drive Roll and | |
| grooves. | Guide Tubs Kits section for proper | |
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| installation of drive roll. | |
| d. Drive rolls loose. | d. Remove, clean, install and tighten. | |
| e. Gun cable dirty. | e. Clean cable or replace liner. | |
| f. Worn drive roll. | f. Replace. | |
| g. Electrode rusty and/or dirty. | g. Replace. | |
| h. Worn nozzle or cable liner. | h. Replace. | |
| i. Partially flashed or melted contact tip. | i. Replace contact tip. | |
| j. Incorrect idle roll pressure. | j. Set idle roll pressure per section | |
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| on Idle Roll Pressure Setting. | |
| k. Improper liner, tip or guide tube. | k. Install proper equipment. | |
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2. Variable or “hunting” arc. | a. Wrong size, worn and/or melted | a. Replace tip - remove any spatter on end of | |
| contact tip. | tip. | |
| b. Worn work cable or poor work | b. Inspect - Repair or replace as necessary. | |
| connection. |
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| c. Loose electrode connections. | c. Be sure electrode lead is tight in wire feeder | |
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| contact block, gun nozzle and gun tip tight. | |
| d. Wrong polarity. | d. Check connection at output studs for polari- | |
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| ty required by welding process. | |
| e. Problem with serial communica- | e. Make sure control cable connections are | |
| tions in control cable. | tight. Check for consistent WFS. Make sure | |
| parameters on Power Source display, such | ||
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| as WFS, match those on wire feeder display, | |
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| if not, see Problem 14, otherwise try chang- | |
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| ing Synergic 7 control board. If problem per- | |
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| sists refer to Power Source trouble shooting | |
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| information. | |
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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.
SYNERGIC 7 & 7H
