The welding arc is variable and sluggish, The arc striking is poor, Troubleshooting & repair – Lincoln Electric WIRE-MATIC 255 SVM 119-A Manuel d'utilisation

Page 60: Caution

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F-9

TROUBLESHOOTING & REPAIR

F-9

WIRE-MATIC 255

TROUBLESHOOTING GUIDE - Observe all Safety Guidelines detailed throughout this manual

WELDING PROBLEMS

PROBLEMS

(SYMPTOMS)

POSSIBLE AREAS OF

MISADJUSTMENTS(S)

RECOMMENDED

COURSE OF ACTION

The welding arc is variable and slug-
gish.

The arc striking is poor.

1.

Perform the

Output Rectifier

Bridge Test.

2.

The control board may be faulty.
Replace.

1.

The control board may be faulty.
Replace.

1.

Check the welding cable con-
nections for loose or faulty con-
nections.

2.

Make sure the wire feed speed,
voltage, and shielding gas are
correct for the process being
used.

1.

Check the welding cable con-
nections for loose or faulty con-
nections.

2.

Make sure the wire feed speed,
voltage, and shielding gas are
correct for the process being
used.

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, con-
tact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed call 216-
383-2531 or 1-800-833-9353

CAUTION

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