308981
15
Air Valve (Husky 515 and Husky 716 pumps with reed switch)
NOTE:
Air Valve Repair Kit 25C469 is available. Parts included in the kit are marked with a dagger (†) in
in the Parts Drawings and Lists. A tube of general purpose grease 111920 is supplied in the kit. Service the air valve
as follows. See
Relieve the pressure. See
1. Remove the cover (10) and the o-ring (4).
2. Remove the carriage plungers (7), carriages (8, 8a),
carriage pins (9), and valve plate (14) from the center
housing (11).
3. Clean all the parts, and inspect them for wear or dam-
age.
NOTE:
If you are installing the new Air Valve Repair Kit
25C469, use all the parts in the kit.
4. Grease the lapped surface of the valve plate (14), and
install the valve plate with the lapped surface facing
up.
5. Grease the bores of the center housing (11), install
the u-cup packings (2) on the carriage plungers (7),
and slide the carriage plungers into the carriage
plunger bores. See the following important installation
notes:
NOTES:
•
When you install each u-cup packing (2) on each
carriage plunger (7), make sure the lips of the u-cup
packing face toward the clip end (the smaller end) of
the carriage plunger.
•
When you slide the carriage plungers (7) into the
bores, slide them in with the clip ends (the smaller
ends) facing toward the center of the center housing
(11).
6
5
4
3
2
1
NOTE:
Center housing (11) is shown
separated from the air covers, but it is not
necessary to remove the air covers for
this service. Leave the center housing
and air covers assembled for this service.
Apply grease to lapped face.
Apply grease to bores of center housing (11) before
installing.
Seal lips face clip end (the smaller end) of carriage
plunger (7).
Install with the clip ends (the smaller ends) facing toward
center of center housing (11).
† Included in Air Valve Repair Kit 25C469
Torque to 80 to 100 in-lb (9.0 to 13.6 N-m).
Apply grease.
11
†7
†8
†2
10
4
9†
8a†
✦
9†
18
✦
2†
7†
14†
6
5
5
4
4
4
3
6
4
1
2
2
2
6. Grease the carriage pins (9), and slide the carriage
pins into the carriage pin bores.
7. Install the carriages (8, 8a). Make sure the carriages
engage the clip ends of the carriage plungers (7) and
carriage pins (9).
8. Grease the o-ring (4), and seat it in the groove around
the cover opening of the center housing (11).
9. Screw the cover (10) into the center housing, and
torque the cover to 80 to 100 in-lb (9.0 to 13.6 N-m).
Fig. 7
