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Reassemble
Reassemble Air
Reassemble
Air Valve
Air
Valve
Valve
NOTE: If repairs involve removing
NOTE:
NOTE:
fluid covers, perform the steps in
Reassemble the Overmolded Diaphragms, page
prior to reassembly of the air valve. The air valve
configuration will be modified to aid fluid cover
installation.
1. If the center section was disassembled to
replace the bearings (113, 115), complete
the
Center Section Repair, page
continuing with the air valve reassembly.
2. Install the valve plate (110) in the cavity, seal
down. Install the three screws (107), using a
Torx (T20) screwdriver or 7 mm (9/32 in.) socket
wrench. Tighten until the screws bottom out on
the housing.
3. Install an o-ring (108) on each pilot pin (112).
Grease the pins and o-rings. Insert the pins into
narrow
the bearings,
narrow
narrow
4. Install u-cups (106) on each actuator piston
(114), so the lips of the packings face the
end of the pistons.
812.0065
19, before
end first.
narrow
narrow
narrow
5. Grease the lower face of the pilot block (116) and
install so its tabs snap into the grooves on the
ends of the pilot pins (112).
17,
6. Lubricate the u-cups (106) and actuator pistons
(114). Insert the actuator pistons in the bearings
wide
(115),
wide
wide
the pistons exposed.
7. Grease the lower face of the valve carriage (119).
8. Install the valve carriage (105) so its tabs slip into
the grooves on the narrow end of the actuator
pistons (114).
9. Align the valve gasket (118) and cover (109)
with the six holes in the center housing (101).
Secure with six screws (107), using a Torx (T20)
screwdriver or 7 mm (9/32 in.) socket wrench.
Torque to 5.7-6.8 N•m (50-60 in-lb).
end first. Leave the narrow end of
Repair
11
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