Differential Gear Assembly (4 Wheel Drive Axle)
The following procedures assume the 4WD rear axle as-
sembly has been removed from the machine.
35
(47 to 56 N−m)
to 41 ft−lb
5
7
6
Removal
1
2
1.
Bevel Gear Case/Axle Case Assembly in this section of
this manual).
Remove bevel gear case/axle case assemblies (see
IMPORTANT: Do not interchange right and left dif-
ferential shafts assemblies.
4
2.
purposes. Pull the differential shaft assemblies from the
axle support.
Mark the differential shaft assemblies for assembly
3
3.
Remove input shaft/pinion gear assembly, shims
Figure 82
and O-ring from the axle support (Fig. 82).
1.
2.
3.
4.
Pinion gear assembly
O-ring
Axle support (right)
Axle support (left)
5.
6.
7.
Case screws
Differential gear assy.
O-ring
4.
Remove the axle support case screws. Separate the
axle support halves and remove the O-ring.
5.
adjusting shims from the axle case.
Remove the differential gear assembly, bearings and
2
1
6.
Drive the spring pin from the differential case with a
punch and hammer. Discard the spring pin (Fig. 83).
NOTE: Mark and arrange all components so they can
be reassembled in their original position.
7.
Remove the differential pinion shaft, pinion gears
and pinion washers. Remove the differential side gears
and side gear shims. Remove the ring gear only if it will
be replaced (Fig. 84).
Figure 83
2.
NOTE: Replacement ring gears are only available in
matched ring and pinion sets.
1.
Differential case
Spring pin
1
3
2
4
5
5
4
2
3
22 to 25 ft−lb
(30 to 34 N−m)
Threadlocking
Compound
7
6
Figure 84
1.
2.
3.
4.
Differential pinion shaft
Pinion gear
Pinion washer
Side gear
5.
6.
7.
Side gear shims
Ring gear
Differential case
Drive Axles
Page 8 − 44
Groundsmaster 3280−D/3320
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