Differential Gear - Toro Groundsmaster 4000-D Service Manual

Differential Gear

The following procedures assume the rear axle assem-
bly has been removed from the machine (see Rear Axle
Assembly Removal in this section).
Differential Gear 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. 34).
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 differential case with a
punch and hammer. Discard the spring pin (Fig. 35).
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. 36).
NOTE: Replacement ring gears are only available in
matched ring and pinion sets.
Axles, Planetaries and Brakes
7
4
1. Gear Case
2. Pinion Gear
3. Axle support (left)
4. Axle support (right)
1. Differential case
5
22 to 25 ft- -lb
(30 to 34 N- -m)
Threadlocking
Compound
7
1. Differential pinion shaft
2. Pinion gear
3. Pinion washer
4. Side gear
Page 6 - - 26
35 to 41 ft- -lb
5 (47 to 56 N- -m)
2
6
3
Figure 34
5. Case screw (8 used)
6. Differential gear
7. O-ring
2
1
Figure 35
2. Spring pin
1
3
2
4
4
2
3
6
Figure 36
5. Side gear shims
6. Ring gear
7. Differential case
Groundsmaster 4000--D
1
35 to 41 ft- -lb
(47 to 56 N- -m)
5