Polarity Switch Removal And Replacement - Lincoln Electric SQUARE WAVE SVM141-A Service Manual

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POLARITY SWITCH 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 polarity switch.
MATERIALS NEEDED
3/8" Nut driver
1/2" Wrench
7/16" Wrench
Phillips head screw driver
5/64" Allen type wrench
Needle nose pliers
Slot head screw driver (2 required)
Wiring diagram
TROUBLESHOOTING & REPAIR
WARNING
This procedure takes approximately 60 minutes to perform.
SQUARE WAVE TIG 275
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