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TROUBLESHOOTING & REPAIR
F-42 F-42
SQUARE WAVE TIG 275
WARNING
HIGH VOLTAGE TRANSFORMER REMOVAL
AND REPLACEMENT
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 elec-
trical 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 troubleshoot-
ing assistance before you proceed. Call 216-383-2531 or 1-800-833-9353 (WELD).
DESCRIPTION
This procedure will aid the technician in the removal and replacement of the high voltage
transformer.
MATERIALS NEEDED
3/8” Nut driver
Needle nose pliers
Phillips head screw driver
Wire cutters
This procedure takes approximately 25 minutes to perform.