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TROUBLESHOOTING & REPAIR
SCR 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
DESCRIPTION
The following procedure will aid the technician in removing the SCRs from the output rect- ifier heat sink for maintenance or replacement.
MATERIALS NEEDED
NO.000 Fine Steel Wool
Penetrox
Allen head type wrenches
This procedure takes approximately 25 minutes to perform.
