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TROUBLESHOOTING & REPAIR
F-39 F-39
RANGER 305D
WARNING
ROTOR RESISTANCE AND GROUND TEST (STATIC)
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.
TEST DESCRIPTION
This test will determine if th rotor winding is open, shorted, or grounded.
MATERIALS NEEDED
Miscellaneous hand tools
Ohmmeter Analog type meter required for dynamic resistance test.)
Wiring Diagram