Repair

Air Swivel and Exhaust Valve Replacement

1. See Prepare the Gun for Service, page 39.

2. To replace the air exhaust valve:

a. Remove the clamp (36) and the exhaust tube (35).

b. Unscrew the swivel (21) from the gun handle (16). The swivel is a left-hand thread. Remove the bracket (7).

c. Pull the exhaust valve (8) from the handle (16). Inspect the o-ring (8a) and replace if necessary.

d. Install the o-ring (8a*) on the exhaust valve

(8). Lubricate the o-ring with a light coating of non-silicone grease.

e. Install the exhaust valve (8) in the handle (16).

f. Apply thread sealant to the top threads of

 

the swivel (21). Position the bracket (7) and

 

screw the swivel into the gun handle (16).

 

Torque to 75–85 in-lb (8.4–9.6 N•m).

Figure 44 Air Inlet Fitting and Air Exhaust Valve

g.Install the tube (35) and clamp (36).

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).

3A2495C

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Graco 3A2495C Air Swivel and Exhaust Valve Replacement, Air Inlet Fitting and Air Exhaust Valve