Lincoln Electric SVM185-A service manual 1TABLE of CONTENTS-THEORY of Operation Section E-1

Return to Master TOC

Return to Master TOC

E-1TABLE OF CONTENTS-THEORY OF OPERATION SECTION E-1

Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-1

General Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-2

General Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-2

POWER FEED® 25M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-3

Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-4

Component Status Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-5

Return to Master TOC

Return to Master TOC

	FIGURE E.1 BLOCK LOGIC DIAGRAM
		VOLTAGE
		SENSE
	LEAD #67A	LEAD #67
	PUSH PULL
	DAUGHTER		DRIVE
			MOTOR
	CONTROL BOARD
TO POWER	FEEDHEAD	FEEDBACK	TACH
SOURCE
		STATUS LED
	DIP SWITCHES		GUN TIGGER AND
INPUT			DUAL PROCEDURE
NETWORK			RECEPTACLE
RECEPTACLE

	HEATER LIGHT			2-STEP/
				4-STEP
CONNECTOR
FOOT AMPTROL		COLD GAS
		INCH/ SOLENOID
			GAS
		PURGE

GEAR BOX

AND

CONDUCTOR

BLOCK

POWER FEED® 25M