Machine has high output and no control, Machine does not have maximum output, Troubleshooting & repair – Lincoln Electric IDEALARC CV-300 User Manual

Page 44: Caution

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F-5

TROUBLESHOOTING & REPAIR

F-5

IDEALARC CV-300

TROUBLESHOOTING GUIDE - Observe all Safety Guidelines detailed throughout this manual

OUTPUT PROBLEMS

PROBLEMS

(SYMPTOMS)

POSSIBLE AREAS OF

MISADJUSTMENTS(S)

RECOMMENDED

COURSE OF ACTION

Machine has high output and no
control.

Machine does not have maximum
output.

1.

Perform the

Main Transformer

Test.

2.

Perform the

Output Rectifier

Bridge Test.

3.

Check the output control (R2)
and associated leads.

4.

The control board may be faulty.
Replace.

1.

Check the output control (R2)
and associated leads.

2.

Perform the

Main Transformer

Test.

3.

Perform the

Output Rectifier

Bridge Test.

4.

The control board may be faulty.
Replace.

1.

Place the remote switch in
machine control. If normal out-
put is restored then the remote
control unit may be faulty.
Check or replace.

2.

Turn off the machine. Wait one
minute. If the problem is
resolved when restarted, switch
positions of any two of the input
lines.

1.

Place the remote switch in
machine control. If normal out-
put is restored then the remote
control unit may be faulty.
Check or replace.

2.

The input voltage may be "dip-
ping" when the machine is
under load. Check.

3.

Make sure all three input phas-
es are applied to the machine.

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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