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 pre-
cautions detailed throughout this manual.

If for any reason you do not understand the test procedures or are unable to per-
form the test / repairs safely, contact the Lincoln Electric Service Department for
electrical troubleshooting assistance before you proceed. Call 1-888-935-3877.

WARNING

INPUT FILTER CAPACITOR DISCHARGE PROCEDURE

TEST DESCRIPTION

This procedure will drain off any charge stored in the capacitors that are part of the
Switch Board Assemblies. This procedure MUST be performed as a safety precaution
before conducting any test or repair that requires you to touch internal components of
the machine

MATERIALS NEEDED

Volt/Ohm Meter (multi-meter)

Insulated Gloves

Insulated Pliers

High Wattage Resistor (25-1000 ohms/25watt)

Misc. Hand Tools