Graco Inc 311001C important safety instructions Air Valve Repair, Fluid Tube Replacement

Air Valve Repair

1.Unscrew the spring cap (11) from the back of the gun body (1) using the gun tool (30). Remove the two springs (15 and 19), the shaft (9), and seat (10).

2.Push the air valve assembly (8*) out the back of the gun. See FIG. 40.

3.Inspect the u-cup (7*) in the gun body (1). If the u-cup is worn or leaking, carefully remove the u-cup from the front of the gun body, using a pick.

15

1 8*

7*

11

Repair

Fluid Tube Replacement

1.Remove the air inlet fitting (17) using the gun tool (30) and remove the screw (20) using a 3/16 in. hex wrench.

2.Unscrew the fluid inlet fitting (18). Remove and clean or replace the inline fluid filter (12).

3.Unscrew the fluid tube connector (C) from the gun’s fluid inlet. Carefully remove the gasket (22*).

19

10

22*

C

17

9

TI6577A

FIG. 40

20

18

12 TI6573A

FIG. 41

22 311001C