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LOW VOLTAGE CIRCUIT TEST
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 manu-
al.
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 1-800-833-9353 (WELD).
DESCRIPTION
These voltage checks will help the technician determine if the correct voltages are being
applied and processed by the various P.C. boards. Some of the voltage verification test
points are not easily accessible. The presence of these voltages can also be confirmed by
LEDs on the various P.C. boards.
MATERIALS NEEDED
5/16” Nut driver
Volt/ohmmeter (multimeter)
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TROUBLESHOOTING & REPAIR
F-35 F-35
PRO-CUT 80
WARNING
This procedure takes approximately 20 minutes to perform.