Power Module Assembly/Power Module Pc Board/Diode Module Removal And Replacement - Lincoln Electric RANGER 250 SVM150-A Service Manual

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POWER MODULE ASSEMBLY/POWER MODULE PC BOARD/
DIODE MODULE 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
electrical 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 trou-
bleshooting assistance before you proceed. Call 1-800-833-9353 (WELD).
DESCRIPTION
This procedure will aid the technician in the removal and replacement of the Power
Module assembly. Procedures for removal and replacement of the Power Module PC
board and the diode module are included.
MATERIALS NEEDED
3/8" wrench or socket wrench
7/16" wrench
7/16" Socket wrench
1/2" Wrench
9/16" Wrench
3/16" Allen head wrench
9/64" Allen head wrench
Torque wrench with 3/16" and 9/64" allen head sockets
Phillips head screw driver
Diagonal cutters
Electrical thermal joint compound - Penetrox A-13
TROUBLESHOOTING & REPAIR
WARNING
This procedure should take approximately 1 hour to perform.
RANGER 250
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