Differential Gear Installation
If the ring gear was removed, use medium strength
3
1.
2
thread locking compound and torque the mounting
screws from 22 to 25 ft-lb (30 to 34 N--m).
1
2.
andbearingsurfacesofthedifferentialpiniongears,pin-
ion washers and side gears.
Apply molybdenum disulfide grease to the splines
3.
original location in the differential case.
Install the side gear shims and side gears in their
4.
ers in their original location in the differential case. Tem-
porarily install the differential pinion shaft.
Place the differential pinion gears and pinion wash-
Figure 41
1.
2.
Vise
3.
Dial indicator
5.
indicator at the tooths center and measure the differen-
tial pinion gear to side gear backlash (Fig. 41).
Secure the differential case in a vise. Position a dial
Differential gear case
More than 35% total tooth contact
PINION GEAR TO SIDE GEAR BACKLASH:
0.004
to 0.016 in. (0.10 to 0.40 mm)
6.
Adjust backlash by increasing or reducing side gear
shim thickness.
NOTE: Side gear shims are available in 0.043 in. (1.1
mm), 0.047 in. (1.2 mm) and 0.051 in. (1.3 mm) thick-
ness.
1/3
from small end of tooth
to 1/2 of entire width
Figure 42
7.
Apply gear marking compound, such as DyKemR
Steel Blue lightly over several gear teeth.
12.Install
differential gear assembly in right side axle
support half.
8.
While applying a light load to either side gear, rotate
either pinion gear until the side gears have made one
complete revolution.
13.Coat
axle support half. Torqueaxle support case screws from
a new O-ring with grease and install left side
35
to 41 ft-lb (47 to 56 N--m).
9.
Ideal tooth contact should cover more than 35% of
each tooth surface. The contact area should be in the
center of each tooth and extend 1/3 to 1/2 way across
each tooth from the toe (small) end (Fig. 42).
14.Install
shaft/Pinion in this section of this manual).
input shaft/pinion gear assembly (see Input
15.Coat
splines with differential gear assembly and slide differ-
ential shaft assemblies onto axle support.
new O-rings with grease, align differential shaft
10.Adjust
contact. Recheck differential pinion gear to side gear
backlash if any changes are made.
side gear shims if necessary to correct tooth
16.Install
Bevel Gear Case/Axle Case Assembly in this section of
this manual).
bevel gear case/axle case assemblies (see
11.
After backlash and tooth contact have been ad-
justed, align the hole in the differential pinion shaft with
the hole in the differential case and install a new spring
pin.
Axles, Planetaries and Brakes
Page 6 -- 34
Groundsmaster 4100--D/4110--D
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