Lincoln Electric VANTAGE 400 - Manual (Page 123)

Service and repair should be performed by only Lincoln Electric factory trained personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician
or machine operator and will invalidate your factory warranty. For your safety and to avoid
electrical shock, please observe all safety notes and precautions detailed throughout this
manual.
If for any reason you do not understand the test procedures or are unable to perform the
test/repairs safely, contact the Lincoln Electric Service Department for electrical trou-
bleshooting assistance before you proceed. Call 1-888-935-3877.
DESCRIPTION
This test will check the Output Control potentiometer, Arc Control potentiometer, Mode
Switch, and associated wiring for damage, proper operation, tracking, and grounds.
MATERIALS NEEDED
Digital Ohmmeter
Wiring Diagram
Control Inner-Connection Diagram
CONTROL POTENTIOMETER AND MODE SWITCH RESISTANCE TEST
WARNING
TROUBLESHOOTING & REPAIR F-75 F-75
VANTAGE® 400
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