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| TROUBLESHOOTING & REPAIR |
DC BUS POWER SUPPLY PC BOARD TEST
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 test will determine if the DC Bus Power Supply PC Board is receiving and process- ing the proper voltages.
MATERIALS NEEDED
3/8” Nut driver Volt/ohmmeter Wiring Diagram
This procedure should take approximately 30 minutes to perform.
