Service
26
310622C
Reassembly
1.
Install the shaft u-cups (10) so the lips face
out
of
the housing.
2.
Insert the bearings (12, 13, and 17) into the center
housing (1),
tapered end first
. Using a press or a
block and rubber mallet, press-fit the bearing so it is
flush with the surface of the center housing.
3.
Reassemble the air valve as explained on page 18.
4.
Align the new air cover gasket (19) so the pilot pin
(14) protruding from the center housing (1) fits
through the proper hole in the gasket.
5.
Align the air cover (20) so the pilot pin (14) fits in the
middle hole (M) of the three small holes near the
center of the cover.
6.
Apply medium-strength (blue) Loctite
®
or equivalent
to the threads of the screws (22). Install the screws
(22), handtight. Using a 10 mm socket wrench,
torque the screws oppositely and evenly to 130-150
in-lb (15-17 N
•
m). Install the diaphragm assemblies
and fluid covers as explained on page 23.
7.
Reassemble the ball check valves and manifolds as
explained on page 22.
F
IG
. 21
F
IG
. 22
10*
1
12
13
17
ti4731
14
19
ti4730
F
IG
. 23
F
IG
. 24
M
14
ti4790
22
ti4790
