Replacing Liner O-Ring | Hobart Welding Products H-9A Gun guide

5-4. Replacing Liner O-Ring

	Y Turn off welding power source.
	Tools Needed:
Head	8 mm / 10 mm
Tube

8 mm

Remove nozzle. Cut off wire	Open pressure assembly. Retract	. Hold wire tightly to keep it
at contact tip, and remove	wire from liner onto spool.	from unraveling. Secure
contact tip and tip adapter.		from unraveling. Secure
contact tip and tip adapter.		end of wire at spool.
		end of wire at spool.

2 mm

Remove screws (3) from cover, and remove cover from wire drive assembly.

8 mm

Loosen liner setscrew	Twist handle locking ring counterclockwise
with allen wrench.	1/4 turn and slide it down cable. Separate
	gun handle by lifting top rear portion up and
	sliding forward over head tube.

Pull end of liner out from housing groove, Loosen nut and slide it down on liner. Lay gun cable straight on a flat surface. Pull liner until it exits the head tube. It is not necessary to completely remove liner from gun.

O-Ring 2 mm

Collar

Loosen collar setscrew with allen wrench. Remove collar and O-ring. Install replacement O-ring, reinstall collar, and tighten setscrew.

803 496-B / 803 497-A / 803 837-A

OM-952 Page 10

5-4. Replacing Liner O-Ring

end of wire at spool.

Loosen liner setscrew

with allen wrench.

sliding forward over head tube.