Graco Aluminum Husky 2150 LP Instructions Manual page 22

Repair
Insert narrow end first.
1
Grease.
2
3 Lips face narrow end of piston (11).
4 Insert wide end first.
F . 12: Air Valve Pistons
IG
Rounded side must face down.
1
Tighten until bottoms out on housing.
2
F . 13: Air Valve Plate
IG
22
Reassemble Air Valve
1. If bearings (12, 15) were removed, install new
2. Install the valve plate seal (9) into the groove at the
11
4
10
3
2
3. Install the valve plate (8) in the cavity. The plate is
16
1
4. Use an applicable screwdriver or wrench to install
17
2
12
15
5. Install an o-ring (17) on each pilot pin (16). Grease
6. Insert the pilot pins (16) into the bearings (15),
7. Install a u-cup packing (10) on each actuator piston
8. Lubricate the u-cup packings (10) and actuator
3
2
8
9. Grease the lower face of the pilot block (18) and
9
1
10. Grease the o-ring (6) and install it in the valve block
11. Push the valve block (7) onto the valve carriage (5).
12. Install the valve carriage (5) so its tabs slip into the
13. Align the valve gasket (4) and cover (2) with the
14. Insert screws (3). Torque to 50–60 in-lb (5.6–6.8
15. Reconnect equipment to air and fluid lines.
bearings. See Replace Bearing and Air Gasket,
page 23.
bottom of the valve cavity. Ensure the rounded side
of the seal faces down into the groove. See F
reversible, so either side can face up.
the screws (3). Tighten until the screws bottom out
on the housing. See Fig. 9.
the pins and o-rings.
narrow end first. See F
IG
(11). Ensure the lips of the packings face the narrow
end of the pistons. See F
pistons (11). Reach inside the cavity and insert the
actuator pistons into the bearings (12), wide end
first. Leave the narrow end of the pistons exposed.
See F . 12.
IG
install so its tabs snap into the grooves on the ends
of the pilot pins (16). See F
(7). See F . 11.
IG
Grease the lower face of the valve block. See F
11.
grooves on the narrow end of the actuator pistons
(11). See F . 11.
IG
center housing (1) holes.
N•m). See F . 10.
IG
. 13.
IG
. 12.
. 12.
IG
. 11.
IG
IG
3A8693B
.