Lincoln Electric UWW-170 manual Changing Liner, Fully seat the liner bushing into the con

D-4 MAINTENANCE D-4

Slotted	Brass Cable
Set Screw	Connector

5/8” (15.9 mm) Liner Trim Length

Gas Diffuser

Contact Tip (Cam-Lock)

Gas Nozzle or Gasless Nozzle (Slip-Fit)

CHANGING LINER

NOTICE: The variation in cable lengths pre- vents the interchangeability of liners. Once a liner has been cut for a particular gun, it should not be installed in another gun unless it can meet the liner cutoff length require- ment. Refer to Figure D.2a or D.2b.

1.	Remove the gas nozzle from the gun
	(threadless slip-fit or threaded).
2.	Remove the existing contact tip from the
	gun by twisting counter-clockwise (cam-
	lock) or unscrewing (threaded).
3.	Remove the gas diffuser from the gun

Liner Assembly

(Liner bushing to be seated tight against brass cable connector)

FIGURE D.2a

Liner trim length for gun with black trigger (Lincoln Electric®)

	tube by unscrewing counter-clockwise.
4.	Lay the gun and cable out straight on a
	flat surface. Loosen the set screw located
	in the brass connector at the wire feeder
	end of the cable. Pull the liner out of the
	cable.
5.	Insert a new untrimmed liner into the con-
	nector end of the cable. Be sure the liner
	bushing is stenciled appropriately for the
	wire size being used.
6.	Fully seat the liner bushing into the con-

Slotted	Brass Cable
Set Screw	Connector

Liner Assembly

(Liner bushing to be seated tight against brass cable connector)

1-1/4 (31.8 mm) Liner Trim Length

Gas Diffuser

Contact Tip (Threaded)

Gas Nozzle or Gasless Nozzle (Threaded)

nector. Tighten the set screw on the brass

cable connector. At this time, the gas dif-

fuser should not be installed onto the end

of the gun tube.

7. With the gas nozzle and diffuser removed

from the gun tube, be sure the cable is

straight, and then trim the liner to the

length shown in the Figure D.2a or D.2b.

Remove any burrs from the end of the

liner.

8. Screw the gas diffuser onto the end of the

gun tube and securely tighten.

FIGURE D.2b

Liner trim length for gun with red trigger (Magnum™ 100L)

9. Replace the contact tip and nozzle.

SP 170-I