5-52 673831-Rev A
HYDROSTATIC POWER TRAIN
5
Brake Disassembly
Figure 5-51
Inspect all parts for cracks, nicks, burrs, and
excessive wear during disassembly. Damage or
excessive wear to wheel motor components other
than seal kit components (2, 5, 7–9, 11, 15–17, 19, 21,
21–24, 29, 31, 33–34, and 42–44) requires wheel
motor replacement.
1. Install wheel lug nuts (47) on studs (13) to prevent
damage to the stud threads and place the wheel
motor on the bearing support so that the brake end of
the wheel motor is facing up.
2. Scribe alignment mark (46) across the side of the
brake housing (38), valving cover (18), cam ring (10),
and bearing support (4) of the front wheel motor. This
mark will be used for proper orientation of
components for assembly.
3. Using a pry tool, remove and discard brake cover
(33).
4. Compress spring washer (36) by one of the following
two methods:
First Method with a Mandrel and Bolt
Figure 5-52
a. Install the spring washer compression tool onto
spring washer (36).
b. Lubricate the spring compression tool bolt threads
and nut faces, and tighten the spring compression
tool bolt into brake piston (32) down to the thread
root.
c. Compress spring washer (36) by tightening the
spring compression tool nut and locking the spring
compression tool bolt until motor shaft (1) turns
freely.
Second Method with a Mandrel and Press
Figure 5-53
a. Install the spring compression tool onto spring
washer (36).
b. Position the bearing support under a press to avoid
any force on the studs.
c. Compress spring washer (36) until motor shaft (1)
turns freely.
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