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TROUBLESHOOTING & REPAIR
F-39 F-39
IDEALARC R3R
WARNING
INPUT CONTACTOR (CR1) CLEANING/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
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 216-383-2531 or 1-800-833-9353 (WELD).
DESCRIPTION
The following procedure will aid the technician in inspecting, cleaning, and replacing the
input contactor.
MATERIALS NEEDED
Phillips head screwdriver
5/16” socket wrench
Flat heat screw driver
Low pressure air source
7/16” Socket wrench
The contactor cleaning procedure takes approximately
15 minutes to perform.
The replacement procedure takes approximately
25 minutes to perform.