Lincoln Electric CLASSICII SVM125-A Service Manual page 57

F-7
TROUBLESHOOTING GUIDE
PROBLEMS
(SYMPTOMS)
The engine starts and runs at the
correct speed, but there is no AC
auxiliary output voltage. The DC
welding generator is functioning
correctly.
The engine starts and runs normal-
ly. The machine takes a long time
to "build-up" and produce output
voltage. The AC auxiliary voltage
varies when the Fine Current
Control Rheostat is adjusted.
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)
OUTPUT PROBLEMS
1. Check the AC auxiliary output
circuit breakers.
tripped.
2. Check the
230VAC receptacles and plugs
for loose or faulty connections.
1. Contact your local Authorized
Field Service Facility.
CAUTION
CLASSIC II
detailed in the beginning of this manual.
RECOMMENDED
COURSE OF ACTION
1. Check for loose or faulty con-
Reset if nections between the recepta-
cles, the circuit breakers, the
current transformer and the
115VAC and
exciter alternator stator.
the Wiring Diagram.
2. Check
230VAC windings in the alterna-
tor stator for shorted turns or
grounds. Check the continuity
of the windings. See the Wiring
Diagram.
1. Check the "flashing" diode
located on the DC generator
brush holder. The diode may
be "shorted" or installed incor-
rectly.
F-7
Observe Safety Guidelines
See
the 115VAC and