Graco 3A2495C important safety instructions Gun Barrel Removal, Gun Barrel Installation

Gun Barrel Removal

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

2.Disconnect the bottom fluid tube nut (N). Carefully separate the tube assembly (T) from the bracket (7).

3.Loosen the two screws (6).

NOTICE

To avoid damaging the power supply (11), pull the gun barrel straight away from the gun handle. If necessary, gently move the gun barrel from side to side to free it from the gun handle.

4.Hold the gun handle (16) with one hand and pull the barrel (1) straight off the handle.

NOTE: If the power supply remains in the barrel, remove the alternator/power supply assembly from the barrel.

Figure 27 Gun Barrel Removal

Repair

Gun Barrel Installation

1.Be sure the gasket (5*) and grounding spring (37a) are in place. Make sure the gasket air holes are aligned properly. Replace the gasket if damaged.

2.Make sure the spring (11a) is in place on the tip of the power supply (11). Liberally apply dielectric grease (57) to the tip of the power supply. Place the gun barrel (1) over the power supply and onto the gun handle (16).

3.Tighten the two screws (6) oppositely and evenly (about a half turn past snug). Do not over-tighten the screws (6).

4.Make sure the fluid filter (10) is in place in the fluid fitting. Tighten the bottom nut (N) onto the fitting and torque to 140–150 in-lb (15.8–16.9 N•m). Make sure the top nut remains tight.

5.See Test Gun Resistance, page 32.

Figure 28 Gun Barrel Installation

3A2495C 43