Lincoln Electric 180, 140 When the gun trigger is depressed, Drive rolls, spool of wire and elec

POWER MIG (140, 180 MODELS)

B-11	OPERATION			FIGURE B.16			B-11
(See Figure B.16)			TOP IDLER ROLL
9. Feed the wire through the wire drive inlet along the			LOWER DRIVE ROLL	TENSION ADJUSTOR
inner wire guide groove and into the wire drive out-			PRESSED AGAINST	LOCKED IN POSITION
let on the gun side.
10. Close the top drive roll pressure arm and secure		SLIDE WIRE			WIRE SPOOL		OF WIRE
by pivoting the tension adjustor back to the up					.025" (0.6mm)		DIRECTION
position.		SIDE
		INTO GUN
11. Re-install the outer wire guide.		CONNECTOR			56SOLIDMIG
					L
(See Figure B.17)					-
12. Remove the nozzle from the gun and contact tip					DRIVE ROLL
and straighten the gun out flat.					IS IN GROOVE
13. Turn the machine power to on and depress the		FIGURE B.17			BE SURE WIRE
gun trigger to feed the wire through the gun liner
until the wire comes out of the threaded end of the
gun several inches. (See Figure B.18)
14. When trigger is released spool of wire should not		REMOVED NOZZLE				.025" (0.6mm)
unwind. Adjust wire spool brake accordingly.						-56	MG
WARNING						WIRE SPOOL
		REMOVED CONTACT TIP
						L	SOLID	I
		LAY CABLE AND GUN STRAIGHTEN
		IN THIS POSITION
MOVING PARTS AND ELECTRICAL
CONTACT CAN CAUSE INJURY OR BE
FATAL.			FIGURE B.18
•When the gun trigger is depressed							PLUG IN POWER
drive rolls, spool of wire and elec-							INPUT CORD
trode are ELECTRICALLY LIVE (HOT).
• Keep away from moving parts and
pinch points.
• Keep all Doors, Covers, panels and			SWITCH
guards securely in place.			ON/OFF
DO NOT REMOVE OR CONCEAL		FEED WIRE			WIRE SPOOL
WARNING LABELS.		FROM THE GUN TUBE END
-----------------------------------------------------------------------		APPROXIMATELY 4.00"			-56	SOLIDMG
		THRU THE LINER.
					.025" (0.6mm)
15. Install the .025”(0.6mm) contact tip.		DEPRESS TRIGGER
		TO ACTIVATE WIRE,
		WHICH FEEDS THE WIRE			L	I
16. Install the brass gas MIG welding nozzle to the gun.						ROTATION
17. Trim the wire stickout to 3/8”(9.5mm) from the nozzle			WORK CLAMP AND CABLE
end. (See Figure B.19)			FIGURE B.19
18. Close the case side door. The machine is now ready		TRIM WIRE
to weld.		STICKOUT			INSTALL .025 CONTACT TIP
19. Read "Learn to Weld" (LTW1) that is included with		3/8"(9.5mm)
		from the Brass Nozzle			INSTALL BRASS NOZZLE
the machine or watch the "How to Weld" DVD includ-
ed with the machine.
20. Based on the thickness of the material you are going
to weld and the type and diameter of the welding
wire set the voltage and the wire feed speed per the
procedure decal attached to the inside of the wire
drive compartment door.