Troubleshooting & repair, Warning rheostat removal and replacement – Lincoln Electric POWER-ARC 4000 SVM103-A User Manual
Page 65
POWER-ARC 4000
F-24
TROUBLESHOOTING & REPAIR
WARNING
RHEOSTAT 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 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 216-383-2531 or 1-800—833-9353 (WELD).
DESCRIPTION
The following procedure will aid the technician in accessing and removing the output control
rheostat for maintenance or replacement.
MATERIALS NEEDED
5/16” Nut driver
Small slot head screw driver
9/16” Open or box end wrench
5/16” Open or box end wrench
Needle nose pliers
Wiring Diagram