Lincoln Electric VANTAGE 400 Service Manual page 52

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Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Major mechanical or electrical
damage is evident.
No welding output or auxiliary
power. The engine operates nor-
mally.
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.
TROUBLESHOOTING & REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
1. Contact your local Lincoln
Authorized
Facility.
Check for loose or faulty connec-
tions in the auxiliary circuit to the
output receptacles, and/or the
weld circuit to the output terminals.
SEE WIRING DIAGRAM.
Check the brushes for wear ad
proper contact to the rotor slip
rings.
CAUTION
VANTAGE® 400
RECOMMENDED
COURSE OF ACTION
1. Contact the Lincoln Electric
Field Service Service Department at 1-888-
935-3877.
Check the brushes for wear and
proper contact to the rotor slip
rings
Perform the Brush and Slip Ring
Service Procedure.
Check for flashing voltage at slip
rings (3-5 Volts DC@.5 amp until
generator builds up, then 160
Volts) See FLASHING VOLTAGE
TEST.
Check Field rectifier and capacitor.
Perform the Rotor Voltage Test.
Perform the Stator Voltage Test.
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