Toro Groundsmaster 328-D, Service Manual

Page: 309 / 402

9. Use a depth gauge to measure the distance from the
end face of the input shaft/pinion gear to the mating sur-
face of the bearing case. Subtract the “Design Cone
Center Distance” from this distance to determine initial
shim thickness (Fig. 20).
DESIGN CONE CENTER DISTANCE
(distance from mating surface of axle support to end
face of pinion gear):
1.870 + 0.002 in. (47.5 + 0.05 mm)
NOTE: Bearing case shims are available in 0.004 in.
(0.1 mm) and 0.008 in. (0.2 mm) thickness.
10.Coat a new O-ring with grease. Place shims on the
bearing case and temporarily install input shaft/pinion
gear assembly into axle case. Tighten mounting screws
Figure 20
1. Input shaft/pinion gear 2. Bearing case
to 35 to 41 ft-lbs. (47 to 56 Nm).
11. Insert a screwdriver through the drain plug hole to
hold ring gear and measure the pinion gear to ring gear
backlash (Fig. 21).
PINION GEAR TO RING GEAR BACKLASH:
0.004 to 0.016 in. (0.10 to 0.40 mm)
12.Adjust backlash by increasing or reducing bearing
case shim thickness.
13.Check pinion gear to ring gear engagement (see Pin-
ion Gear to Ring Gear Engagement in this section of this
manual.
1
2
3
4
35 to 41 ft–lbs.
14.Place the correct combination of shims on the bear-
(47 to 56 Nm)
ing case. Tighten mounting screws to 35 to 41 ft-lbs. (47
to 56 Nm).
Figure 21
1. Axle case 3. Dial indicator
2. Screwdriver 4. Input shaft/pinion gear
1
2
Design
Cone Center
Distance
Groundsmaster 328–D Page 10.1 – 13 4WD Rear Axle (Rev. G)
(Dae Dong Axle)