Lincoln Electric IM922 LN-23P - Manual (Page 18)

E-2 TROUBLESHOOTING E-2
LN™-23P
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
Motor won’t run.
Wire will not feed, or erratic feeding.
Erratic arc action.
1. Circuit breaker tripped.
2. OCV is above 50 volts (45 volts
on DC-600).
3. Wrong polarity – unit is shipped
internally connected to operate
on negative polarity only.
4. Remote voltage sensing work
lead not connected to work.
5. Electrode lead not connected to
LN™-23P.
6. Control cable not properly con-
nected to CV Converter or
Adapter Kit.
7. Faulty gun trigger or broken con-
trol wires.
8. Faulty control circuit.
9. Faulty CV Converter, Adapter Kit
or Power Source.
1. Gun cable being excessively
bent.
2. Dirty gun cable.
3. Loop of wire caught on bent tang
in wire reel.
4. Worn drive rolls.
5. Improper idle roll tension setting.
1. Worn tip.
2. Incorrect wire feed speed or volt-
age.
3. Poor work lead connection.
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.