Lincoln Electric SVM194-A service manual Weld Circuit Ground and Short Circuit Test Procedure

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F-51		TROUBLESHOOTING AND REPAIR	F-51
	WELD CIRCUIT GROUND AND SHORT CIRCUIT TEST PROCEDURE
		WARNING
	Service and repair should be performed only by 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 1-888-935-3877.
	TEST DESCRIPTION
	This procedure checks for grounded components in the weld circuit. It also checks for a
	short circuit condition between the positive and negative components of the weld circuit.
	This test cannot detect a short circuit within the armature or a turn to turn short circuit with-
	in a coil or coil set.
	Important:	The machine must be clean and completely dry before this test is done.

MATERIALS NEEDED

Miscellaneous hand tools

Multimeter

Wiring diagram

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CLASSIC® 300D & 300G