Lincoln Electric SVM189-B service manual 11OPERATION, Connect Leads and Cables on the Machine

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B-11OPERATION

C. CONNECT LEADS AND CABLES ON THE MACHINE

B-11

FIGURE B.14

Section

Master

(See Figure B.14)

LOCATE COMPONENTS TO CONNECT TO THE FRONT OF MACHINE

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1.Open the case side door.

2.Slide the connector end of the gun and cable

through the hole of the machine front and into the

gun connector bushing on the wire drive.	SLIDE
	CONNECTOR
	END HERE
3. Make sure the gun connector end is seated fully into
the wire drive and tighten the thumbscrew to secure	(4 PIN)
the gun.
	LEAD CONNECTOR

CASE SIDE DOOR

OPEN LATCH DOOR

TERMINAL END (FITS ON STUD INSIDE SEE FIGURE BELOW)

WORK CLAMP

4. Plug the gun trigger lead connector into the 4 pin		ALL COMPONENTS SHOWN CONNECTED
	GUN AND CABLE	(FRONT AND SIDE DOOR IS REMOVED
gun trigger receptacle on the machine front.		FOR CLARITY)

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5. Wire Drive Polarity. MIG welding requires Positive

(+) polarity. Connect the short power cable from the

wire drive to the positive (+) output terminal and

THUMB SCREW TO

WORK LEAD CONNECTION

TIGHTEN CONNECTOR

BUSHING

NEGATIVE "-"

OUTPUT TERMINAL

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tighten the thumbscrew.

6. Work Lead Connection. Slide the lugged end of the

work cable through the hole in the machine front and

place on the negative (-) output terminal and tight-

en thumbscrew.

D. LOAD WIRE SPOOL

(See Figure B.15)

1.Locate the green labeled 4"(102mm) diameter spool of .025”(0.6mm) L-56 solid MIG wire and place onto wire spool spindle. Orient the spool so that the wire feeds off the top of the spool.

2.Secure spool in place by tightening the wing nut against the against the spacer that holds the wire spool on the spindle.

3.Open the top drive roll pressure arm by rotating the tension adjustor arm down and pivoting the idle roll pressure arm up.

4.Remove the outer wire guide.

CONNECTOR
END ATTACH
	SHORT POWER
(4 PIN)	CABLE POSITIVE "+"
	OUTPUT TERMINAL
TRIGGER RECEPTACLE
PLUGGED IN
	WORK CLAMP

FIGURE B.15

TOP DRIVE ROLL PRESSURE ARM

TENSION ADJUSTOR DOWN

WIRE SPOOL

.025" (0.6mm)

L				IG
-				M
	5	6
			D
			S OLI

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4a. Slide gun out of drive slightly.

5. Remove the lower drive roll and inner wire guide.

INNER WIRE GUIDE REMOVED

6. Install the .025”-.035”(0.6mm-0.9mm) inner wire guide.

LOWER DRIVE ROLL REMOVED

7. Install the .025”(0.6mm) smooth grooved lower drive roll.

OUTER WIRE

GUIDE REMOVED

8. Carefully unwind and straighten the first six inches of welding wire from the spool. Do not let the end of the wire go to prevent the wire from unspooling.

COMPACT WIRE WELDERS