Hobart Welding Products 2250 Cleaning Or Replacing Piecemaker 20-A Gun Liner, To Reassemble Gun

4-5. Cleaning Or Replacing Piecemaker 20-A Gun Liner

Tools Needed:

Y Disconnect gun from unit.

7/16 in

Contact Tip

Insulator 1/16 in

Nozzle

Adapter

Head Tube

Remove nozzle, contact tip, and adapter.

7/16 in

Loosen setscrew in quick-connect plug. It may also be necessary to loosen setscrew in adapter.

Quick-connect Plug

Remove liner.

Lay gun cable out straight before installing new liner.

	To Reassemble Gun:
	Inspect o-rings for chips or cuts be-
	fore inserting new liner. A light lu-
	brication on the o-rings will make
	liner installation easier.
Blow out gun casing.	Insert new liner.
	Push liner against quick-connect
	plug and tighten setscrew(s).
	Cut liner off so that 7/16 in (11 mm)
	± 1/32 in (.8 mm) sticks out of head
	tube.
	Install adapter, contact tip, insula-
	tor, and nozzle.

Ref. ST-802 290

OM-192 440 Page 20