Lincoln Electric WELDANPOWER SVM 113-A Service Manual page 47

F-9
TROUBLESHOOTING GUIDE
PROBLEMS
(SYMPTOMS)
Engine will NOT idle down to low
speed.
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)
ENGINE PROBLEMS
1. Make sure the idler control
switch is in the "AUTO" idle
position.
2. Remove any external load on
the welder terminals or auxiliary
power receptacles.
CAUTION
WELDANPOWER 125
Observe Safety Guidelines
detailed in the beginning of this manual.
RECOMMENDED
COURSE OF ACTION
1. With the idler control switch in
the "AUTO" position and all
external loads removed, check
for 12VDC at leads #208 and
#209. See Wiring Diagram. If
the 12VDC is present and the
idler solenoid does not activate,
the solenoid may be faulty.
Replace.
2. If the 12VDC is NOT present at
leads #208 and #209, perform
the Main Stator Winding Test.
3. Check leads #15A (at stator) to
#16 (at idler P.C. board) for con-
tinuity (zero ohms).
leads #9A (at stator) to #9B (at
idler P.C. board) for continuity
(zero ohms).
Diagram.
4. The idler P.C. board may be
faulty. Replace.
F-9
Check
See Wiring