Lincoln Electric SVM123-A service manual SCR Output Bridge Replacement

Models: SVM123-A

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F-49

TROUBLESHOOTING & REPAIR

F-49

 

SCR OUTPUT BRIDGE REPLACEMENT

WARNING

Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment could result in danger to the technician or the 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 tests/repairs safely, contact the Lincoln Electric Service Department for technical trou- bleshooting assistance before you proceed.

Call (216) 383-2531 or (800) 833-9353 (WELD).

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MATERIALS NEEDED

9/16” socket wrench 9/16” open end wrench

1/2” long-handled flat rachet wrench 1/2” socket wrench

1/2” open end wrench 3/8” socket wrench 5/16” socket wrench

Lincoln E1868 (Dow Corning #340) heat sink compound

IDEALARC DC-1000

Page 89
Image 89
Lincoln Electric SVM123-A service manual SCR Output Bridge Replacement