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TROUBLESHOOTING AND REPAIR | ||
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ACTIVE SCR 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 procedure will determine if the device is able to be gated “ON” and conduct current from anode to cathode.
MATERIALS NEEDED
An SCR tester as outlined in this procedure. PRECISION TIG® 225 Wiring Diagrams 3/8” nutdriver
