Bendix Commercial Vehicle Systems COMPACT 500 9/87 - Manual (Page 19)

19
FIGURE 38
Insert the 19 balls (29) one by one in one of the openings for
the recirculating tubes located in the piston (48) while turning
the spindle at the same time. Balls inserted in one opening
should recirculate to the opposite opening as the ball screw
is rotated. Before proceeding, make certain the balls are at
an equal depth in both holes of the piston. (See Figure 38).
This will assure correct installation of the return tube (49).
Install the seven remaining balls(29) into the ball return tube
halves(49) using lithium base general purpose grease (Ford
Chassis grease ESA-M1C75-B) to retain the balls. Place
the tube into piston(48), install the tube cover(50) and its
snap ring(51). Check for smooth operation of the spindle
assembly. (See Figure 39)
NOTE: the utmost care must be taken with these
steps. Incorrect assembly of this group may result in
one or more balls failing inside the piston or coming
out at the top of it and lodging in the bottom of the
housing(45).
Install the O-Ring(47) and back-up rings(46) on the piston.
(See Figures 36 & 40)
NOTE: Make certain to rotate the glide rings(46) so
that their gaps are 180° apart and not in line with
each other.
HOUSING ASSEMBLY
6. If the outer race of bearing(26) was removed, it must be
reinstalled using tool 297677. Center the narrow bearing
spacer on tool 297677 then install the bearing(26)
complete with its outer race(26) on the tool. Drive the
bearing and race along with the spacer into the housing
from the output shaft side of the housing until the tool
bottoms against the outside of the housing. (See Figures
41A, B & C) Remove the tool and check to be certain
that the outer race and spacer have been driven into the
housing sufficiently deep to allow installation of the snap
ring(25). If the snap ring(25) cannot be installed, remove
the narrow bearing spacer and using tool 297647 drive
the bearing race further into the housing. Reinstall the
narrow bearing spacer and install the snap ring(25),
making certain it is completely seated in its groove. Using
tool 297647 tap the outer race from inside the housing
FIGURE 40
FIGURE 39