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Replacement
1. See Prepare the Gun for Service, page 37.
2. To replace the air exhaust valve:
a. Remove the clamp (43) and the exhaust tube
(36).
b. Unscrew the swivel (21) from the gun handle
(16). The swivel is a left-hand thread.
Remove the bracket (20).
c. Pull the exhaust valve (19) from the handle
(16). Inspect the o-ring (19a) and replace if
necessary.
d. Install the o-ring (19a*) on the exhaust valve
(19). Lubricate the o-ring with a light coating
of non-silicone grease.
e. Install the exhaust valve (19) in the handle
(16).
f. Apply thread sealant to the top threads of the
swivel (21). Position the bracket (20) and
screw the swivel into the gun handle (16).
Torque to 75–85 in-lb (8.4–9.6 N•m).
g. Install the tube (36) and clamp (43).
3. To replace the air inlet swivel:
a. Unscrew the swivel (21) from the gun handle
(16). The swivel is a left-hand thread.
b. Apply thread sealant to the top threads of the
swivel. Screw the swivel into the gun handle.
Torque to 75–85 in-lb (8.4–9.6 N•m).
Figure 40 Air Inlet Fitting and Air Exhaust Valve
523A2494D