Lincoln Electric SVM112-B service manual Input Rectifier Resistance Test, Test Description

Models: SVM112-B

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F-47

F-47

TROUBLESHOOTING & REPAIR

INPUT RECTIFIER RESISTANCE 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 elec- trical 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 any of the internal diodes in the three-phase rectifier are shorted or open.

MATERIALS NEEDED

Analog Volt/Ohmmeter (Multimeter) 5/16" Nut driver

3/8" Nut driver

Machine Wiring Diagram in the Electrical Diagrams section of this manual

This procedure takes approximately 35 minutes to perform.

POWER WAVE 450

Page 107
Image 107
Lincoln Electric SVM112-B service manual Input Rectifier Resistance Test, Test Description