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STATOR RESISTANCE 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).
DESCRIPTION
This test will determine whether there are shorts, opens, or grounds in any of the stator wind-
ings. An open, shorted or grounded winding can cause lack of output.
MATERIALS NEEDED
Refer to “Case Cover Removal” section for tools needed to remove side panels and
shroud.
5/16” Nut Driver
7/16” Nut Driver
2 Multi-Meters
Crescent Wrench
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TROUBLESHOOTING & REPAIR
WARNING
F-69 F-69
This procedure takes approximately 45 minutes to perform.
COMMANDER 400