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F-71
TROUBLESHOOTING & REPAIR
F-71
NA-5
PC BOARD(S) REMOVAL AND REPLACEMENT
DESCRIPTION
The following procedure will aid the technician in removing and replacing the printed circuit
boards for maintenance or replacement.
MATERIALS NEEDED
Phillips head screwdriver
5/16" Nutdriver
Service and repair should be performed only by Lincoln Electric factory trained per-
sonnel. Unauthorized repairs performed on this equipment could result in danger to
the technician or the machine operator and will invalidate your factory warranty. For
your safety and to avoid electrical shock, please observe all safety notes and precau-
tions detailed throughout this manual.
If for any reason you do not understand the test procedures or are unable to perform
the tests/repairs safely, contact the Lincoln Electric service department for technical
troubleshooting assistance before you proceed.
Call (216) 383-2531 or (800) 833-9353 (WELD).
_____________________________________________________________
WARNING
This procedure takes approximately 17 minutes to perform.
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