Lincoln Electric IM10024 manual Nozzle Installation See Figure C.18, Figure C.20

C-14		ACCESSORIES						C-14
Nozzle Installation (See Figure C.18)			Make sure that the mating surface (8) between the
				IMPORTANT
1. install the new idle roll arm (C) using the pin and			Center Block (4) and the Copper Bar (2). is bright,
set screw from the original assembly.			clean and smooth. This junction carries the full weld
2. Replace the tension spring and screw and adjust			current.
the tension screw to the proper line on the indica-					FIGURE C.20
tor plate.
3. Insert one of the guide tubes (B) in the top of the							1
faceplate. Line up the holes in the guide tube
with the grooves in the drive rolls to insure proper
wire feed
4. Put the Dual Wire Straightener over the ingoing			2				9
guide tube and lock it down with the two “L”
shaped clamps
5. Place the other guide tube into the top of the
K225 Nozzle Assembly (F) and slide the guide
tube into the Wire Drive faceplate until the
						5		3
mounting screws (1) can be started into the
tapped holes in the faceplate. Tighten both
screws.
NOTE: For applications that require staggered or			8			7
	cross seam wire placement rather than in-line,						6
	the nozzle can be rotated by loosening the
	two1/4-20 socket head screws (9) that hold						4
	the nozzle to the mounting base. If the desired
	angle cannot be obtained, remove the screws
	and put them into alternate holes. Retighten		Maintenance
	when properly adjusted.		The most extensive contact wear takes place on the
6. Connect the weld cables of the proper size and			center contact block. The side pressure jaws are
number to the copper bar (2). If using multiple			made of a harder longer lasting material. Replace the
cables, use both sides of the bar.			center block when there is no pressure on the wire
7. Route the flux hose from the flux hopper to the			from the side contact jaws.
clip (3) on the K225 nozzle.			Make sure that the mating surface (8) between the
8. Spacing between the electrodes is maintained by			Center Block (4) and the Copper Bar (2). is bright,
			clean and smooth. This junction carries the full weld
the center block which comes in three sizes. The			current.
.50 “ and .625” center blocks come with the kit. A
.375” block is also available. See the parts list for
the part number. To change the center block,
See Figure A-30:
	• Loosen both of the Pressure Springs (5)
	• Remove the two Socket Head Screws (7)
	• Put a small amount of graphite grease on
	the screw threads and install the new copper
	block.
	• Replace the two screws and tighten securely
	• Tighten the four screws holding the Pressure
	springs

MAXsa™ 22 & 29 WIRE DRIVES