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Repair
44 309856P
Piston Safety Lock Air Valve
1. Follow Pressure Relief Procedure, page 18.
2. Flush Gun, page 22.
3. Disconnect air (D) and remove fluid manifold (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).
5. Lubricate o-rings (14, 18) and piston safety lock
actuator (3), and reassemble. Use Fusion Gun
Lubricant, page 53. 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.
TI3837a
G
D
10
15
17
3, 4
TI3835b
14
18
1. Follow Pressure Relief Procedure, page 18.
2. Flush Gun, page 22.
3. Disconnect air (D) and remove fluid manifold (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).
5. Liberally lubricate o-rings and reassemble. Use
Fusion Gun Lubricant, page 53. Torque plug (2) to
125-135 in-lb (14-15 N•m).
6. Attach fluid manifold. Connect air. Return gun to
service.
TI3837a
G
D
24
27
26
2
TI3834a