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AUXILIARY TRANSFORMER 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 procedure will determine if the correct voltage is being applied to the primary of auxil-
iary transformer and also if the correct voltage is being induced on the secondary windings
of the transformer.
MATERIALS NEEDED
Volt-ohmmeter (Multimeter)
5/16” Nut Driver
Wiring Diagram
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TROUBLESHOOTING & REPAIR
F-33 F-33
V350-PRO
WARNING
This procedure takes approximately 25 minutes to perform.