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F-8
Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The engine will not return to low
idle when the welding and auxiliary
loads are removed.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con-
tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
TROUBLESHOOTING & REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
1. Make sure the Idler Control
switch is set to the "Auto" posi-
tion.
2. Make sure both welding and
auxiliary loads are removed.
3. Check for mechanical restric-
tions in the idler and throttle link-
age.
CAUTION
Classic III and IIID
TROUBLESHOOTING GUIDE
RECOMMENDED
COURSE OF ACTION
1. Check the Idler Control switch
and associated leads for loose
or faulty connections. See the
Wiring Diagram.
2. Check the reed switch CR2. It
may be stuck closed. Replace if
necessary.
3. Check for loose or faulty con-
nections at the Idler PC board.
4. Make sure lead #60D is ground-
ed correctly.
See the Wiring
Diagram.
5. Perform the Idler Solenoid
Test.
6. The Idler PC board may be
faulty. Replace.
F-8
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Troubleshooting
