Lincoln Electric SVM153-A service manual Description

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F-66	F-66
	TROUBLESHOOTING & REPAIR

POWER MODULE (CHOPPER) PC BOARD/DIODE

MODULE REMOVAL AND REPLACEMENT

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).

DESCRIPTION

This procedure will aid the technician in the removal and replacement of the Power Module (chopper) PC board and the board diode module.

MATERIALS NEEDED

7/16" Wrench

3/8" Allen head wrench 9/64" Allen head socket Phillips head screw driver

Penetrox A13 thermal joint compound (T12837-1) -2 gm tube

This procedure should take approximately 60 minutes to perform.

COMMANDER 500