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F-21 F-21
PRO-CUT 25
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TROUBLESHOOTING & REPAIR
MAIN INVERTER BOARD VOLTAGE 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 1-888-935-3877.
DESCRIPTION
This test will help determine if the main inverter board is receiving the correct input voltages
and if the correct regulated voltages are being processed and maintained by the main
inverter board.
MATERIALS NEEDED
Volt/Ohmmeter
7mm Nut Driver
4mm Allen Wrench
Crescent Wrench
WARNING