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POWER-ARC 4000
F-6
TROUBLESHOOTING
F-6
TROUBLESHOOTING GUIDE - 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 the
Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-800-833-9353
OUTPUT PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
No auxiliary power - welding output
is normal - engine runs normally.
1. Check the auxiliary power re-
ceptacles and associated wires
for loose or faulty connections.
2. Check the continuity (zero ohms)
of leads 3, 3A, 3B; 6, 6A, 6B, 6C;
and 5, 5A, 5B from the recepta-
cles to the stator windings. See
the Wiring Diagram.
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
to 3. See the Wiring Diagram.
1. Check circuit breakers CB1 and
CB2. Reset if tripped.
2. Make sure that the control rheo-
stat (R1) is set at “GENERATOR”
(maximum).
3. Check for loose or faulty plug at
power receptacle.
CAUTION
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