Lincoln Electric POWER-ARC 4000 SVM103-A Service Manual page 46

F-5
Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
No auxiliary power - welding output
is normal - engine runs normally.
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.
POWER-ARC 4000
TROUBLESHOOTING & REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
1. Check circuit breakers CB1 and
CB2. Reset if tripped.
2. Make sure that the control rheo-
stat (R1) is set at "GENERA-
TOR" (maximum).
3. Check for loose or faulty plug at
power receptacle.
CAUTION
TROUBLESHOOTING GUIDE
RECOMMENDED
COURSE OF ACTION
1. Check the auxiliary power re-
ceptacles ands associated wires
for loose or faulty connections.
2. Check the continuity
ohms) of leads 3, 3A (black); 6,
6A (yellow); and 5 (white) from
the receptacles to the stator
windings. See the Wiring Dia-
gram.
3. Make sure lead 5 (white) is
grounded to the machine frame
(zero ohms).
4. Check for an open or grounded
auxiliary winding in the stator, 6
(yellow) to 3 (black).
Wiring Diagram.
(zero
See the