Lincoln Electric IM10024 manual K226 Contact Assembly, Model K226-T

C-3		ACCESSORIES			C-3
K226 CONTACT ASSEMBLY			Maintenance		- Rusty or dirty wire and/or exces-
The K226 assemblies are used for welding at currents			sively high welding currents increase wear on the
			contact jaws. When arcing occurs or the elec-
from 600 to 1000 amps.			trode becomes loose in the jaws, remove the
Model K226-T		- (2 tapered jaws)	jaws and ʻdressʼ them with a file. When neces-
	3/32” and 1/8” (2.4 and 3.2mm) electrode		sary, the jaw inserts should be replaced.
Model K226-R- (1 tapered and 1 rectangular jaw)			NOTE: Units made prior to 1979 did not have
	1/8” thru 7/32” (3.2 - 5.6mm) electrode			inserts. The replacement jaws will have
Installation -		Remove the two nozzle mounting		them.
clamps from the wire drive. Insert the outgoing			The contact jaws must be kept in line with the
wire guide from the wire feed head into the top of			wire guide. Align the jaws as follows: (See Figure
the K226 and install the assembly in position on			C.3)
the bottom of the wire feed head. Use the two			1.	Loosen the stationary contact jaw screws.
screws provided with the K226 to attach it to the
wire drive. See Figure C.3.			2.	Release the tension on the moveable jaw by
NOTE: Removing the 4 screws that hold the noz-				loosening the screws holding the spring.
	zle body to the mounting block allows the		3	Place a straight 14” (or longer) piece of bare
	nozzle to be rotated to any of four posi-
	tions 90° apart. See Figure C.3.			5/32” (4.0mm) wire through the wire guide
Connect two (2) electrode cables to the contact				and into the drive rolls of the feed head.
jaws (one under each 1/2-13 nut. Make sure that			4. Adjust the stationary contact so the wire
the cable lugs are flat against the copper and				touches the jaw at the center of the groove
tighten the nuts securely. See Figure C.3.			5.	for the entire length of the jaw.
Slip the rubber flux hose that comes with the				Tighten the screws, remove the wire and re-
K226 on to the flux hopper valve. Fit the copper				tighten the screws holding the spring to
tube into the other end and place it in the clip on				apply tension to the moveable jaw. The
the lower jaw assembly. See Figure C.3.				moveable jaw should move freely when fin-
				ished.

FIGURE C.3 - K226 CONTACT NOZZLE ASSEMBLY

Use to Mount to Wire Drive

Remove(4)

Screws to

Rotate Nozzle

Attach Weld Cables Here

	Stationary
Spring	Contact
Moveable
Contact
K226-R	Flux
Only	Hose

Copper Tube

WORK NOZZLE

TRAVEL TRAVEL

MAXSA™ 22 & 29 WIRE DRIVES