Input contactor, Test, Troubleshooting & repair – Lincoln Electric POWER WAVE SVM173-A User Manual
Page 65: Input contactor test warning
TROUBLESHOOTING & REPAIR
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POWER WAVE 455M/MSTT
INPUT CONTACTOR TEST
WARNING
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 help determine if the input contactor is functional and if the contacts are
functioning correctly.
MATERIALS NEEDED
3/8” Nut driver
Volt-ohmmeter
External 24 VAC supply