FIGURE 23
Install pressure compensating spring in relief
c.
Press outer needle bearing onto shaft. The edge
valve bore. Insert valve assembly with the
of the bearing must be 1/64" below the shaft seal
hexagonal end toward the spring. Install plug
shoulder when assembled This provides for shaft
with "0" ring in bore and hold it in position while
end play of approximately .010" to .15".
driving a new retaining pin.
NOTE: Tools for installing bearings can be made from
f.
Manifold - Install "0O" rings in pump cover and
round stock, the outside diameter of which is slightly
secure manifold to pump body with screws.
smaller than the outside diameter of the bearing and the
Copper washer is used on screw where tapped
inside diameter slightly larger than the shaft diameter Do
hole enters oil passage.
not score or otherwise damage the shaft during this
operation.
d. Position the seal on the shaft end body, being
careful not to damage seal. Press seal in until it
engages the shoulder in the body. This shoulder
acts as a positive stop for the seal. Do not
overpress as damage to the seal will result.
e. Cover end - Install locating pins in pump body.
Install ring over pins in correct direction of
rotation.
Install rotor with chamfered edge of splined hole
"in" or toward pump body.
The chamfer
facilitates assembly.
Install vanes with their radius edge toward the
inner ring contour.
Oil the cartridge with clean hydraulic oil and
install pressure plate
Install "O" rings. Install pressure plate spring and
cover Tighten cover screws to 25-30 lbs ft.
21
