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TROUBLESHOOTING & REPAIR
INPUT FILTER CAPACITOR DISCHARGE PROCEDURE
WARNING
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
DESCRIPTION
This procedure will drain off any charge stored in the four large capacitors that are part of the switch board assembly. This procedure MUST be performed, as a safety pre- caution, before conducting any test or repair procedure that requires you to touch inter- nal components of the machine.
MATERIALS NEEDED
5/16” Nut Driver
Insulated Pliers
Insulated Gloves
High Wattage Resistor
This procedure takes approximately 20 minutes to perform.
