Hobart BETA-MIG 2250, Owner'S Manual

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OM-192 440 Page 20
4-5. Cleaning Or Replacing Piecemaker 20-A Gun Liner
Ref. ST-802 290
7/16 in
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.
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.
Lay gun cable out straight
before installing new liner.
Head Tube
7/16 in
Remove liner.
Remove nozzle, contact tip, and
adapter.
Blow out gun casing.
Y
Disconnect gun from unit.
Tools Needed:
Loosen setscrew in quick-connect
plug. It may also be necessary to
loosen setscrew in adapter.
Quick-connect Plug
1/16 in
Nozzle
Contact Tip
Insulator
Adapter