Lincoln Electric POWER WAVE 355M - Manual (Page 69)

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 power board is receiving the correct voltages and also
if the power board is regulating and producing the correct DC voltages.
MATERIALS NEEDED
Volt-Ohmmeter
3/8” Nut Driver
Wiring Diagram
POWER BOARD TEST
TROUBLESHOOTING AND REPAIR F-23 F-23
POWER WAVE 355M/405M
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