Differential Shafts - Toro Groundsmaster
4000?D Service Manual

PRELIMINARY – For Toro Distributor and Toro Company use only.

Differential Shafts

The following procedures assume the rear axle assem-
bly has been removed from the machine.
Removal
IMPORTANT: Do not interchange right and left dif-
ferential shaft assemblies.
1. Remove the mounting screws, nuts and lock wash-
ers. Remove the bevel gear case/axle case assembly
and O-ring from the axle support (Fig. 23).
2. Mark and pull the differential shaft assembly from the
axle support.
3. Remove the retaining ring and bevel gear (Fig 24).
4. Drive the differential shaft out of the bearings. Re-
move the bearings and bearing shims.
5. Inspect all gears, shafts, bearings and cases for
damage and wear. Replace components as necessary.
Installation
1. Press bearings onto differential shaft. Place correct
combination of bearing shims in axle support and drive
differential shaft and bearing assembly into axle sup-
port.
2. Install bevel gear and retaining ring.
3. Coat new O-ring with grease. Align differential shaft
splines with differential gear assembly and slide differ-
ential shaft assembly onto axle support.
4. Install bevel gear case/axle case assembly (see
Bevel Gear Case/Axle Case Assembly in this section of
this manual).
Axles, Planetaries and Brakes
4
35 to 41 ft−lb
(47 to 56 N−m)
1. Cap screw
2. Lock nut
3. Lock washer
4. Axle support
1. Retaining ring
2. Bevel gear
3. Differential shaft
Page 6 − 20
35 to 41 ft−lb
(47 to 56 N−m)
1
6
2
3
7
Figure 23
5. Bevel gear/axle case
assembly
6. O-ring
7. Stud
6
3
5
Figure 24
4. Bearing
5. Bearing shims
6. O-ring
Groundsmaster 4000−D
5
4
2
1