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F-11
TROUBLESHOOTING & REPAIR
F-11
POWER-ARC 4000
ROTOR VOLTAGE 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 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 troubleshooting assistance before you proceed.
Call 1-800—833-9353 (WELD).
TEST DESCRIPTION
This test will determine if the correct DC voltage is being applied to the rotor at maximum engine speed (3700
RPM). This information will aid the technician in determining if the generator field is operating properly.
MATERIALS NEEDED
Volt/Ohmmeter
5/16” Nut driver
Wiring Diagram
WARNING
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This procedure takes approximately 15 minutes to perform.