Lincoln Electric Pro-MIG 140 User Manual download pdf (Page 29)

E-4

TROUBLESHOOTING

E-4

Pro-MIG 140

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.

CAUTION

PROBLEMS

(SYMPTOMS)

Arc is unstable – Poor starting

POSSIBLE

CAUSE

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.

4. Check for proper gas and flow

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.

RECOMMENDED

COURSE OF ACTION

If all recommended possible areas

of misadjustment have been

checked and the problem persists,

Contact your local Lincoln

Authorized Field Service

Facility.

WELDING PROBLEMS

Observe all Safety Guidelines detailed throughout this manual

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 65 66

No comments

Lincoln Electric Pro-MIG 140 User Manual Page 29