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E-5
TROUBLESHOOTING
E-5
CV-400-I
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
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
Output Control not functioning on the
machine.
Poor arc striking with semiautomatic
wire feeders.
Poor arc characteristics
1. Local/Remote switch is in
the "Remote" position.
2. Faulty Voltage Adjust
potentiometer.
3. Leads or connections open in
control circuit.
4. Malfunctioning Remote Control.
5. Faulty Control PC board.
1. Poor work connection.
2. Improper procedures.
3. Wire feed acceleration too fast or
too slow.
4. Defective PC Board.
1. Control PC Board defective.
1. Move switch toggle to the "Local"
position.
2. Check and replace if found faulty.
3. Check lead continuity and connec-
tions for an open and repair if neces-
sary.
4. See "Options Troubleshooting".
5. See PC Board Troubleshooting
Procedure.
1. Work connection must be adequate
for application.
2. Adjust procedures for improved start-
ing.
3. Adjust wire feeder acceleration set-
ting, if provided.
4. See PC Board Troubleshooting
Procedure.
1. See PC Board Troubleshooting
Procedure.