Piston Safety Lock; Air Valve - Graco Fusion Instructions-Parts List Manual

Piston Safety Lock

1.
Follow Pressure Relief Procedure, page 19.
2.
Flush Gun, page 24.
3.
Disconnect air (D) and remove fluid manifold (G).
G
4.
Unscrew cap (10) from stop (15), using two pair of
channel-lock pliers. Inspect spring (17), safety
actuator (3), bushing (4), and o-rings (14, 18).
15
18
14
5.
Lubricate o-rings (14, 18) and piston safety lock
actuator (3), and reassemble. Use Fusion Gun
Lubricant 118665. Clean threads with solvent or
alcohol. Apply medium-strength Loctite or equiv-
alent to threads on stop (15) and cap (10), and
reassemble.
6.
Attach fluid manifold. Connect air. Return gun to
service.
310648P
D
TI4968b
3, 4
10
17
TI3835b

Air Valve

1.
Follow Pressure Relief Procedure, page 19.
2.
Flush Gun, page 24.
3.
Disconnect air (D) and remove fluid manifold (G).
G
4.
Unscrew air valve plug (2) and remove spring (26).
Using small screwdriver (54), push spool (27) out
from front. Inspect o-rings (24).
24
5.
Liberally lubricate o-rings and reassemble. Use
Fusion Gun Lubricant 118665. Torque plug (2) to
125-135 in-lb (14-15 N•m).
6.
Attach fluid manifold. Connect air. Return gun to
service.
Repair
D
TI4968b
2
26
27
TI4990a
41