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F-8
TROUBLESHOOTING & REPAIR
F-8
IDEALARC SP-250
TROUBLESHOOTING GUIDE - Observe all Safety Guidelines detailed throughout this manual
WIRE FEEDING PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
No control of wire feed speed.
Other machine functions are normal.
There is no wire feed when gun trig-
ger is pulled. Normal open circuit
voltage is present.
1. Perform the Wire Drive Motor
and Tach Feedback test.
2. The control board may be faulty.-
Replace.
1. Perform the Wire Drive Motor
and Tach Feedback Test.
2. The control board may be faulty.
- Replace.
1. The thumb switch circuit in the
gun may be faulty. Check or
replace.
1. If the drive rolls are turning then
check for a mechanical restric-
tion in the wire feed path.
2. The gun liner may be clogged.
Check or replace.
3. If the drive rolls are NOT turning
when the gun trigger is pulled
then contact your local Lincoln
Electric Authorized Field Service
Facility.
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