Input Rectifier Test - Lincoln Electric POWER WAVE SVM156-A Service Manual

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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 1-800-833-9353 (WELD).
TEST DESCRIPTION
This test will help determine if the input rectifier has "shorted" or "open" diodes.
MATERIALS NEEDED
Analog volt-ohmmeter
Phillips head screw driver
Wiring Diagram
3/8" Nut driver
This procedure should take approximately 15 minutes to perform.
TROUBLESHOOTING & REPAIR

INPUT RECTIFIER TEST

WARNING
POWER WAVE 455/R
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