Lincoln Electric POWER FEED 10M SINGLE/DUAL SVM172-A - Manual (Page 123)

POWER FEED 10M SINGLE/DUAL
F-19 F-19
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TROUBLESHOOTING AND REPAIR
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 pre-
cautions detailed throughout this manual.
If for any reason you do not understand the test procedures or are unable to per-
form the test / repairs safely, contact the Lincoln Electric Service Department for
electrical troubleshooting assistance before you proceed. Call 1-888-935-3877.
WARNING
TACH FEEDBACK TEST
TEST DESCRIPTION
This test will determine if the tach unit is receiving the correct supply voltage from the
control board, and also if the tach unit is sending feedback information to the control
board.
MATERIALS NEEDED
3/8 in. nut driver
Volt-Ohmmeter