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INPUT FILTER 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.
TEST DESCRIPTION
This procedure will drain off any charge stored in the four capacitors that are part of the
Inverter Board assembly. This procedure MUST be performed, as a safety precaution,
before conducting any test or repair procedure that requires you to touch internal
components of the machine.
MATERIALS NEEDED
Phillips Head Screwdriver
High Resistance and High Wattage Resistor (25-1000 ohms and 25 watts minimum)
Insulated Gloves
Insulated Pliers
TROUBLESHOOTING & REPAIR
F-9 F-9
INVERTEC® V155-S
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WARNING