Lincoln Electric IM870-A manual Faulty receptacles

Models: IM870-A

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E-4

TROUBLESHOOTING

E-4

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

Welding current too great or too

1.

“Current Control” shaft and handle

small compared to indication on the

 

may have turned slightly in the

dial.

 

insulated bushing of the current

 

 

control brushholder, caused by

 

 

turning handle too hard against

 

 

one of the stops.

 

2.

Exciter output low causing low

 

 

output compared to dial indication.

 

3.

“Current Control” set to minimum

 

 

and welder output so great that

 

 

engine stalls when arc is struck.

 

1. Local/Remote switch is in wrong

Welder has output and no control

position.

1.

GFCI Receptacle may have

No auxiliary power

tripped. Follow “GFCI Receptacle

 

Testing and Resetting Procedure”

 

in the MAINTENANCE section of

 

this manual. (GFCI Receptacle is

 

Optional)

2.

Circuit Breakers open.

3.

Faulty connections to auxiliary

 

receptacles.

If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln Authorized Field Service Facility.

4. Faulty receptacles.

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.

SAE-400 SEVERE DUTY

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Lincoln Electric IM870-A manual Faulty receptacles