Service Manual

Brake Shaft Seal
Brake
Shaft Seal
79 Before installing the parking brake assembly,
make sure the brake is in the unlocked position.
Note: On transaxles with the differential Iock/parking
brake option, do not move the lever unnecessarily,
especially when it is out of the housing assembly.
The differential lock/parking brake assembly incor-
porates automatic self-adjusting brakes. Unnec-
essary activation of the lever may cause the brake to
expand and make installation of the assembly very
difficult.
Install the parking brake assembly in the housing
assembly, aligning it with the four notches cast in the
housing assembly.
Note: Make sure the parking brake handle is
pointing
or leaning towards the cover side of the
housing assembly.
80 To ensure correct installation of the axle
14 housings in the housing assembly, the housing and
axle assemblies are marked with an
A and B. The B
side of the transaxle must be assembled first.
There are two different brake
or differential shaft
lengths that are used in the axle housing assem-
blies. The shorter shaft is always used in the
A axle
housing, regardless of whether the parking brake
or
differential lock option is used. The longer shaft is
always used in the B axle housing assembly.
Apply a small amount of petroleum jelly to the brake
shaft seal. Carefully install the longer of the two
brake shafts in the
B side of the housing assembly.
Note: Make sure the brake shaft seal is not
damaged during installation.
81 The next step is to engage the brake shaft with
the parking brake. To align and engage the splines,
hold the parking brake disk with one hand and then
rotate the brake shaft slightly with the other hand.
82 Reposition the housing assembly and carefully
install the motor rotor assembly on the motor journal,
into the housing assembly.
Note:
If a rubber band was used to retain the ball
pistons, remove it now.
83 The first sun gear is longer than the second sun
gear. Install the smaller end of the first sun gear into
the motor rotor assembly.
84 Install the two dowel pins and the first of three
identical gaskets on the B side of the housing
assembly.
85 Install the wear plate, bowed side toward the
motor rotor assembly, aligning it with the two dowels.
86 Install the second of three gaskets on the wear
plate, aligning
it with the dowels.
87 Install the ring gear assembly on the housing
assembly, aligning
it with the brake shaft and
dowels.
Caution: The two ring gear assemblies are
identical and can be installed on either side of
the housing assembly. However, when installing
the ring gear assembly, the side with the bearing
must face the axle housing assembly.
88 Lubricate and assemble the three planetary
gears on the primary carrier assembly.
89 Install the primary carrier assembly into the ring
gear assembly by aligning and engaging it with the
previously installed sun gear.
90 Install the second sun gear in the primary
carrier assembly.
91 Lubricate and assemble the three planetary
gears on the secondary carrier assembly.
92 Install the secondary carrier, aligning and
engaging the three planetary gears with the ring
gear assembly and second sun gear.
93 Install the brake gear on the brake shaft.
94 Two different spacer thicknesses are used in
the axle housing assemblies. On transaxles with
parking brakes, the thicker spacer is used in the
A
axle assembly and the thinner spacer is used in the
B axle assembly.
On transaxles with the differential lock/parking brake
option, the A axle housing assembly uses two thin
thrust washers and a thrust bearing to replace the
thick spacer. The
B axle housing assembly always
uses the thinner spacer, regardless of whether the
parking brake
or differential lock/parking brake
option is used.