Differential Shafts; Removal; Installation - Toro Reelmaster 5500-D Service Manual

9. Remove the bevel gear case/axle case assembly
from the axle support. Coat a new O-ring with grease
and temporarily install the axle cover assembly. Position
a dial indicator at the tooths center. Prevent the axle
from turning and measure the lower bevel gear to axle
gear backlash (Fig. 21).
LOWER BEVEL GEAR BACKLASH:
0.004 to 0.016 in. (0.10 to 0.40 mm)
10.Adjust backlash by increasing or reducing axle bear-
ing shim thickness (see Axle Shafts in this section of this
manual).

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 shafts 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. 22).
2. Mark and pull the differential shaft assembly from the
axle support.
3. Remove the retaining ring and bevel gear (Fig 23).
4. Drive the differential shaft out of the bearings and
spacer. Remove the bearings and bearing shims.
5. Inspect all gears, shafts, bearings, spacers and
cases for damage and wear. Replace components as
necessary.

Installation

1. Press bearings onto differential shaft. Place correct
combination of bearing shims in spacer and drive differ-
ential shaft and bearing assembly into spacer.
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).
4WD Rear Axle (Rev. C)
NOTE: Axle bearing shims are available in 0.008 in.
(0.2 mm), 0.012 in. (0.3 mm), and 0.020 in. (0.5 mm)
thickness.
11. Tighten axle cover screws from 17 to 20 ft-lb (23 to
27 N−m).
12.Coat a new O-ring with grease and install the bevel
gear case/axle case assembly on the axle support.
Tighten mounting screws and nuts from 35 to 41 ft-lb (47
to 56 N−m) (Fig. 12).
4
2
1. Cap screw
2. Lock nut
3. Lock washer
4. Axle support
1. Retaining ring
2. Bevel gear
3. Differential shaft
4. Bearing
Page 9 - 14
1
6
3
Figure 22
5. Bevel gear case/axle
case assembly
6. O-ring
7
5
3
6
Figure 23
5. Spacer
6. Bearing shims
7. O-ring
Reelmaster 5500-D
5
4
2
1