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| TROUBLESHOOTING & REPAIR |
OUTPUT RECTIFIER, STT CHOPPER BOARD AND RECTIFIER MODULE
REMOVAL AND REPLACEMENT
WARNING
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
TEST DESCRIPTION
This procedure will aid the technician in the removal and replacement of the output recti- fier assembly and individual rectifier module replacement.
This procedure takes approximately 35 minutes to remove and replace the output rectifi- er, 5 minutes to remove the STT Chopper Board and 5 minutes to remove and replace the rectifier module.
MATERIALS NEEDED
3/8” Nut driver 7/16” Wrench 9/16” Wrench 9/64” Allen wrench 3/16” Allen wrench
Penetrox A13 Thermal Joint Compound Wiring Diagram
This procedure should take approximately 45 minutes to perform.
