Toro Groundsmaster 4500-D Series Service Manual page 393

Installation (Figure
Groundsmaster ® 4500-D/4700-D
19245SL Rev A
260) (continued)
1
g276527
1. Input shaft/pinion gear
8. Use a depth gauge to measure the distance from the end face of the input
shaft/pinion gear to the mating surface of the bearing case. Subtract the
"Design Cone Center Distance" from this distance to determine initial shim
thickness (Figure 262).
DESIGN CONE CENTER DISTANCE (distance from mating surface of axle
support to end face of pinion gear): 47.5 + 0.05 mm (1.870 + 0.002 in).
Note: Bearing case shims are available in 0.1 mm (0.004 in) and 0.2 mm
(0.008 in) thickness.
9. Coat new O-rings with grease and install the bearing case in the gear case.
Place shims on the gear case and temporarily install gear case assembly
into axle case. Tighten mounting nuts and screws from 47 to 56 N·m (35
to 41 ft-lb).
3
g276528
1. Axle case
2. Screwdriver
10. Insert a screwdriver through the drain plug hole to hold ring gear and
measure the pinion gear to ring gear backlash
PINION GEAR TO RING GEAR BACKLASH: 0.10 to 0.40 mm (0.004 to
0.016 in)
11. Adjust backlash by increasing or reducing gear case shim thickness.
12. Check pinion gear to ring gear engagement (see
Engagement (page
Figure 262
2.
4
Figure 263
3.
4.
7–43)).
Page 7–35 Axles, Planetaries and Brakes: Service and Repairs
Design
Cone Center
Distance
2
Bearing case
1
2
Dial indicator
Input shaft/pinion gear
(Figure 263).
Pinion Gear to Ring Gear