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Reassemble
Reassemble the
Reassemble
the
the Center
Center Section
Center
1. Install the shaft u-cups (106) so the lips face
of the housing.
2. Insert new bearings (111, 113, and 115) into the
center housing (101),
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 in
Reassemble Air Valve, page
4. Align the new air cover gasket (102) so the pilot
pin (112) protruding from the center housing
(101) fits through the proper hole in the gasket.
The gasket part number depends on the
diaphragm material and will affect assembly of
manifolds. Refer to the parts list to verify which
gasket to use.
812.0063
Section
Section
out
out
out
tapered
tapered end
tapered
end first
end
first
first
. Using
11.
5. Align the air cover (103) so the pilot pin (112) fits
in the middle hole (M) of the three small holes
near the center of the cover.
6. Apply a medium-strength thread locker to the
threads of the screws (104). Install the screws
(104), hand tight. Using a 10 mm socket wrench,
torque the screws oppositely and evenly to
15-17 N•m (130-150 in-lb). Install the diaphragm
assemblies and fluid covers as explained in
Diaphragms, page
7. See
Reassemble the Check Valves, page
Repair
23.
12.
19
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