Service Manual

Page 29
5. Apply a thin coat of oil to the wet brake piston bore
and install the wet brake piston and D-Ring
assemblies into the axle housing flange bore,
including the lead-in chamfer area.
6. Place the piston and D-Rings assembly against the
lead chamfer in the piston housing.
7. Oscillate the piston 15-20 degrees easily by hand.
Easy movement indicates good fit and piston is well
centered and seated against the lead chamfer in the
axle housing flange.
NOTE: If excess effort is required to manually press the
piston into the axle housing flange, it may mean the pis-
ton is cocking and not being pressed parallel. If cocking
occurs, the piston may bind and scratch the critical seal
surfaces.
8. Install the (4) wet brake spring guide dowels, if were
removed during disassembly, through the piston and
into each axle housing flange bore.
9. Press the piston by hand into the piston housing of
the axle housing flange.
10. Slide the (4) return springs over the spring guide
dowels.
11. Place the spring housing against the return springs.
12. Install the spring housing to axle housing with the
(2) M8 capscrews into the threaded holes in the axle
housing flange, compressing the (4) return springs,
and tighten per “Torque Table” in section 6.
Axle Shaft, Thrust Washer,
Snap Ring, Sun Gear Assembly
Complete this assembly for each axle shaft to be
assembled. Note there are a long and short axle shaft to
be assembled. Figur
e 4.10.
1. Slide the planetary sun gear on the axle shaft
planetary splines.
NOTE: The snap ring should rotate freely in the snap
ring groove, if properly installed.
This should be
checked to assure snap ring is seated.
2. Install the snap ring in the snap ring groove of the
axle shaft.
3. Install the thrust washer into the spring housing.
4. Slide the correct length axle shaft assembly through
the thrust washer, spring housing, into the axle
housing and engage the carrier side gear splines.
Install the Wet Brake Disc
Components into the Axle Housing
Install the wet brake disc components, if this axle has the
wet brake feature, in the reverse sequence of the order
that they were removed and set aside for reassembly.
1. Use rubbing alcohol to clean the surface of the
shim prior applying adhesive and apply #Q58
adhesive to the shim that mounts to the axle housing
face and align the hole pattern as attach the shim to
the axle housing flange surface.
Figure 4.11.
If assembly has one friction disc, refer to Figure 4.12
for sequence of discs.
2. Install a stationary disc against the piston into the
axle housing flange aligning the slots in the disc
with the (6) axle housing flange dowels.
3. Install the friction disc on the planetary sun gear
aligning the splines.
NO
TE:
The backing plate’
s step surface is to be
installed away from the friction disc towards the wheel
end planetary assembly.
Section 4
Assembly
Figure 4.12
STATIONARY
DISC
FRICTION DISC
B
A
CKING PLA
TE’S
STEP SURFACE
DOWEL
WHEEL END ASSEMBLY
Figure 4.11
SHIM
DOWEL
Figure 4.10
AXLE SHAFT
SUN GEAR
SNAP RING