E-4TROUBLESHOOTING

TROUBLESHOOTING GUIDE

Observe Safety Guidelines detailed in the beginning of this manual.

 

 

 

 

 

 

 

 

 

 

 

PROBLEMS

 

 

POSSIBLE AREAS OF

 

 

RECOMMENDED

 

 

(SYMPTOMS)

 

 

MISADJUSTMENT(S)

 

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WELDING PROBLEMS

 

 

 

 

 

Arc is unstable – Poor starting

 

 

1. Check for correct input voltage

 

 

 

 

 

 

 

 

 

to machine – 115vac.

 

 

 

 

 

 

 

 

2.

Check for proper electrode

 

 

 

 

 

 

 

 

 

polarity for process.

 

 

 

 

 

 

 

 

3.

Check gun tip for wear or dam-

 

 

 

 

 

 

 

 

 

age and proper size – Replace.

 

 

 

 

 

 

 

 

 

 

 

 

Contact your local Lincoln

 

 

 

 

 

4.

Check for proper gas and flow

 

 

Authorized Field Service Facility.

 

 

 

 

 

 

rate for process. (For MIG only.)

 

 

 

 

 

 

 

 

5.

Check work cable for loose or

 

 

 

 

 

 

 

 

 

faulty connections.

 

 

 

 

 

 

 

 

6.

Check gun for damage or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

breaks.

 

 

 

 

 

 

 

 

7.

Check for proper drive roll orien-

 

 

 

 

 

 

 

 

 

tation and alignment.

 

 

 

 

 

 

 

 

8.

Check liner for proper size.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your

LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.

WELD-PAK 100

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Lincoln Electric IM546 manual 4TROUBLESHOOTING, Welding Problems