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Troubleshooting, Caution – Lincoln Electric IM968 SAE-500 SEVERE DUTY User Manual

Page 25

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TROUBLESHOOTING

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SAE-500™ SEVERE DUTY™

Observe all Safety Guidelines detailed throughout this manual

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)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

Welder runs but fails to generate cur-
rent.

Welding arc is loud and spatters
excessively.

1. Generator or exciter brushes may

be loose or missing.

2. Exciter may not be operating.

3. Field circuit of generator or exciter

may be open.

4. Polarity reversing switch may be in

the neutral position.

5. Exciter may have lost excitation.

1. Series field circuit may be open

circuited.

2. Current setting may be too high.

3. Polarity may be wrong.

If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.