E-5

 

TROUBLESHOOTING

 

E-5

 

 

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

 

 

PROBLEMS

 

POSSIBLE AREAS OF

 

RECOMMENDED

 

(SYMPTOMS)

 

MISADJUSTMENTS(S)

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

PROBLEMS

 

 

 

 

 

 

 

Output Control not functioning on the

1.

Local/Remote switch is in

1.

Move switch toggle to the "Local"

machine.

 

the "Remote" position.

 

position.

 

 

2.

Faulty Voltage Adjust

2.

Check and replace if found faulty.

 

 

 

potentiometer.

 

 

 

 

 

 

3.

Check lead continuity and connec-

 

 

3.

Leads or connections open in

 

tions for an open and repair if neces-

 

 

 

control circuit.

 

sary.

 

 

4.

Malfunctioning Remote Control.

4.

See "Options Troubleshooting".

 

 

5.

Faulty Control PC board.

5.

See PC Board Troubleshooting

 

 

 

 

 

Procedure.

 

 

 

 

 

Poor arc striking with semiautomatic

1.

Poor work connection.

1.

Work connection must be adequate

wire feeders.

 

 

 

for application.

 

 

2.

Improper procedures.

2.

Adjust procedures for improved start-

 

 

 

 

 

ing.

 

 

3.

Wire feed acceleration too fast or

3.

Adjust wire feeder acceleration set-

 

 

 

too slow.

 

ting, if provided.

 

 

4.

Defective PC Board.

4.

See PC Board Troubleshooting

 

 

 

 

 

Procedure.

 

 

 

 

 

Poor arc characteristics

1.

Control PC Board defective.

1.

See PC Board Troubleshooting

 

 

 

 

 

Procedure.

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

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.

CV-400-I

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Lincoln Electric CV-400-I manual Wire feeders For application Improper procedures