Repair
313294D
23
Piston and Purge Rod
1.
Follow Pressure Relief Procedure, page 10.
2.
Flush Gun, page 14.
3.
Disconnect air hose from quick disconnect (D) and
remove fluid manifold (G).
4.
Disassemble Front End, page 18.
5.
Unscrew purge rod stop (33d) to remove piston
safety lock assembly. Inspect o-rings (33f, 33g) in
place.
6.
Pull purge rod to remove piston (40). Inspect piston
o-ring (45) and shaft o-ring (48).
7.
Inspect purge rod (34) for scratches or damage.
Unscrew rod from piston with nut driver. Inspect
o-ring (33g). Liberally lubricate with Fusion Gun
Lubricant. To reassemble, thread purge rod (34) into
piston (40) until rod stops.
8.
Liberally lubricate piston o-rings. Reinstall piston.
Shaft is keyed for proper assembly. Push firmly to
seat piston. Rotate piston/purge rod assembly
clockwise with nut driver until piston is fully seated.
9.
Install piston safety lock assembly until bottomed
out.
10. Reassemble Front End, page 19.
11. Attach fluid manifold. Connect air. Return gun to
service.
D
r_256998_313294_1b
G
33d
33f
TI3847a
33g
45
48
40
TI4988a
33g
34
TI3848a
16
40
48
TI4988a
TI3847a
