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F-36

F-36

TROUBLESHOOTING & REPAIR

OUTPUT RECTIFIER BRIDGE 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 1-800-833-9353 (WELD).

TEST DESCRIPTION

This test will determine if there are faulty diodes in the output rectifier bridge.

MATERIALS NEEDED

Volt/Ohmmeter (Analog) 11/32" Nut driver

1/2" Wrench

3/8" Wrench or socket wrench 9/16" Wrench

Wiring Diagram

This procedure should take approximately 45 minutes to perform.

RANGER 250

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Lincoln Electric SVM150-A service manual Output Rectifier Bridge Test, Test Description