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CHOPPER BOARD CAPACITOR DISCHARGE PROCEDURE
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.
DESCRIPTION
This procedure will insure that the five large capacitors on the Chopper Board have been
discharged. This procedure should be performed whenever work is to be attempted on or
near the Chopper Board.
MATERIALS NEEDED
3/8” Nut Driver
Volt/Ohmmeter
Resistor (25 Ohms and 25 Watts Minimum)
Jumper Leads
Wiring Diagram
TROUBLESHOOTING & REPAIR
F-16 F-16
POWER MIG 350MP
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WARNING