Toro Groundsmaster 228–D - Differential Gear; Removal

Differential Gear
The following procedures assume the rear axle assem-
bly has been removed from the machine.
Removal
1. Remove bevel gear case/axle case assemblies (see
Bevel Gear Case/Axle Case Assembly in this section of
this manual).
IMPORTANT: Do not interchange right and left dif-
ferential shafts assemblies.
2. Mark and pull the differential shaft assemblies from
the axle support.
3. Remove input shaft/pinion gear assembly, shims,
and O-ring from the axle support (Fig. 20).
4. Remove the
axle support case screws. Separate the
axle support halves and remove the O-ring.
5. Remove the differential gear assembly, bearings,
and adjusting shims from the axle case.
6. Drive the spring pin from the dif
ferential case with a
punch and hammer. Discard the spring pin (Fig. 21).
NOTE: Mark and arrange all components so they can
be reassembled in their original position.
7. Remove the differential pinion shaft, pinion gears,
a
nd pinion washers. Remove the differential side gears
and side gear shims. Remove the ring gear only if it will
be replaced (Fig. 22).
NOTE: Replacement
ring gears are only available in
matched ring and pinion sets.
5
1
3
4
6
7
2
Figure 20
1. Pinion gear 5. Case screws
2. O-ring 6. Differential
gear
3. Axle support (right) 7. O-ring
4. Axle support (left)
1
2
Figure 21
1. Differential case 2. Spring pin
1
2
3
4
6
7
3
2
4
5
5
Figure 22
1. Differential pinion shaft 5. Side gear shims
2. Pinion gear 6. Ring
gear
3. Pinion washer 7. Differential
case
4. Side gear
Groundsmaster 228–D Page 14.1 – 11 4WD Rear Axle
Rev. D
(Groundsmaster 228–D with Dae Dong axle)