Lincoln Electric IM10024 manual K285 Concentric Flux Cone, K285 Installation to the K148

C-6			ACCESSORIES			C-6
To install a new contact tip proceed as follows:				K285 Installation to the K148
1.	Clip the end of the electrode and inch it up until it is			1.	Remove the tension on the center guide tube using
	free of the tip.				a “C” clamp as shown in Figure C.8. Apply only
2.	Remove the contact tip locking nut.				enough clamping force to relieve the tang pressure
					from the contact tip.
3. Relieve the spring pressure of the contact tip against				2.	Remove the contact tip clamping nut and the con-
	the steel tang in the hole of the contact tip. To do
	this, push the nozzle body so the steel tang is				tact tip.
	approximately centered in the 3/8” (9.5 mm) hole in				FIGURE C.8
	the contact tip. Under these conditions the contact
	tip can be easily removed from the nozzle body.
4 a. Before installing the new tip, make sure the
		threads and the bottom surface of the nozzle are
		clean and bright. These surfaces are current car-
		rying areas and must be clean.
	b. Push the nozzle body to one side to relieve the
		pressure and insert the new contact tip.
5. a. Check the locking ring threads making sure				3. Remove the brass thread protecting collar and
		they are free or any foreign material. A small
		application of locally available high temperature			slide the dirt shield off of the nozzle.
		anti-seize compound or graphite grease on		4. Make sure that all the threads are clean and
		these threads insure a longer thread life of the
		two mating parts.			replace the collar, the contact tip and the clamping
	b. Replace the locking ring and tighten securely.			5.	nut and remove the “C” clamp.
6.					Loosen the hose clamps of the K285 entirely, place
	Check the contact tip to be certain it is tight in the				them around the nozzle and tighten them so that
	nozzle body. If the tip is not tight, arcing will take				the stationary part of the K285 covers the opening
	place between the tip contact surface and the noz-				in the nozzle body	as shown in Figure C.9.
	zle contact surface which will damage the nozzle			6.	Position the moveable section to the desired flux
	body.
				7.	height and tighten the wing nut.
K285 Concentric Flux Cone					Cut the flux hose to required length and connect as
The K285 Concentric Flux Cone is designed to fit on a					shown.
K148 (with or without the K149 attachment) or on a					FIGURE C.9 - K148
K129 Tiny Twin-Arc® nozzle. This attachment
deposits the flux so that it surrounds the electrode(s).
NOTE: If using a K149 extension, the electrical stick-
			out will be limited to 4” (102mm).
The K285 consists of two pieces that are electrically						Wing Nut
isolated from each other. The stationary segment is
clamped to the nozzle and the moveable portion						Flux
which supports the flux hose and the concentric cone					Clamps
allows for vertical adjustment of the flux cone.					Hose	Hose

Moveable

Section

Travel

Direction

MAXsa™ 22 & 29 WIRE DRIVES