Tach Pc Board Removal And Replacement - Lincoln Electric LN-9 SVM127-A Service Manual

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TACH PC BOARD 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
The following procedure will help the technician remove the Tach PC Board and related com-
ponents for repair or replacement.
MATERIALS NEEDED
Slot head screw driver
Phillips head screw driver
3/8" open-end wrench
TROUBLESHOOTING & REPAIR
WARNING
LN-9 Wire Feeder
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