Graco Orion 234084, Instructions-Parts List Manual

Page: 16 / 38

Repair
16 309512
Air Valve Repair
Disassembly
1. Remove the screws (35) and take the air valve
housing (29) off the air motor. Remove the gaskets
(34). See F
IG
. 5.
2. Remove the screws (46).
3. Remove the air valve cover (45), seat (44), and cup
(43). See F
IG
. 6.
4. Remove the setscrews (69). Disassemble the piston
assembly. See F
IG
. 7. Use screw (46) to remove the
first bushing (50). Both the screw and the internal
threads on the bushing are M6x1.
Reassembly
1. Install the o-rings (51‡) on the bushings (50) and
install one bushing in the housing (29). Install the
piston (40‡) and the other bushing. Install the set-
screws (69) to secure.
2. Place the cup (43‡) into the housing (29) so it rides
on the air valve piston. See F
IG
. 6.
3. Install the seat (44‡) and cover (45) as shown.
Make sure the holes in the seat align with the holes
in the housing (29), and note the orientation of the
relief valve (60) in the cover. Torque the screws (46)
to 10-11 N•m (90-100 in-lb).
4. Grease the inside surfaces of the housing (29) fac-
ing the gaskets (34‡), then position the gaskets as
shown in F
IG
. 5. Install the air valve with the relief
valve (60) facing up. Torque the screws (35) to
10-11 N•m (90-100 in-lb).
To repair the air valve, order Repair Kit 233836.
Parts included in the kit are marked, for example
(34‡).
F
IG
. 5 Air Valve
F
IG
. 6 Air Valve Cover, Seat, and Cup
34‡*
35
29
Torque to 10-11 N•m (90-100 in-lb)
1
1
TI2349AX
60
46
45
44‡
43‡
29
60
Torque to 10-11 N•m (90-100 in-lb)
1
1
TI1905A
F
IG
. 7 Air Valve Piston Assembly
40‡
51‡*
50
51‡*
50
29
69
69
TI1904A