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TROUBLESHOOTING & REPAIR
DIODE 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
The following procedure will aid the technician in removing and replacing stud type diodes to the aluminum heat sinks on the Commander 300.
MATERIALS NEEDED
7/16" Wrench
1" Open end wrench Penetrox A13 Loctite 271
“Slip” type torque wrench
This procedure should take approximately 25 minutes to perform.