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OUTPUT PROBLEMS
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
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 1-888-935-3877.
CAUTION
Both the weld and auxiliary
output voltages are low.
Make sure the engine is
operating at high idle speed.
Make sure that no load is
connected to either the weld or
auxiliary outputs.
Perform the Engine RPM
Adjustment Test.
Perform the Brush and Slip
Ring Service Procedure.
Perform the Flash Voltage
test.
Perform Exciter Rotor
Resistance and Ground Test.
There is no, or very low weld
output, and no auxiliary output.
Check that the remote/local
switch (if so equipped) is in
the local control position.
Check that the auxiliary power
circuit breakers and Ground
Fault Circuit Interrupters
(GFCIs) (if so equipped) are
not tripped.
NOTE: GFCIs will not reliably
reset, unless engine is
operating at high idle
RPM.
Check all leads and cables for
damaged or poor connections.
Perform the Brush and Slip
Ring Service Procedure.
Perform the Flash Voltage
test.
Perform the Exciter Rotor
Resistance and Ground Test.
TROUBLESHOOTING AND REPAIR
F-4 F-4
CLASSIC® 300D & 300G
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