Lincoln Electric VANTAGE 400 Service Manual page 102

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STATOR VOLTAGE TESTS (CONTINUED)
To test the 42 VAC wire feeder winding:
1. Connect the voltmeter probes to pins "I" (lead
41A) and "K" (lead #42A) of the 14 pin
Amphenol. See Figure F.11.
2. Start the engine and run it at high idle (1860 to
1890 RPM).
3. The AC voltage reading should be between 40
and 50 VAC.
4. If these voltage readings are not within the
specified limits, check for a tripped or defective
circuit breakers, loose connections, or broken
wires between the test points and the stator
windings. If there are no wiring problems, and
the circuit breakers are not tripped or defec-
tive, the stator is defective and should be
replaced.
TROUBLESHOOTING & REPAIR
VANTAGE® 400
To test the three-phase weld winding:
1. Locate weld winding leads W1, W2, and W3
where they connect to the three-phase output
bridge rectifier. See Figure F.12. See wiring
diagram.
2. Start the engine and run it at high idle (1860 to
1890 RPM).
3. Check for about 60 to 65 VAC from leads W1
to W2, W2 to W3, and W1 to W3.
4. If these voltage readings are not within the
specified limits, check for loose connections or
broken wires between the test points and the
stator windings. If there are no wiring prob-
lems, the stator is defective and should be
replaced.
* These values are maximum for a cold machine.
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