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TROUBLESHOOTING & REPAIR
F-33 F-33
RANGER 300 D AND 300 DLX
WARNING
AUXILIARY AND FIELD WINDING TEST
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 elec-
trical 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 1-800-833-9353 (WELD).
TEST DESCRIPTION
This test will determine if the correct AC voltages are being generated from the stator wind-
ings.
MATERIALS NEEDED
Volt/Ohmmeter
5/16” Nut driver
3/8” Nut driver
Wiring Diagram
This procedure requires approximately 45 minutes to perform.