Toro Groundsmaster 3280-D Service Manual page 397

Installing the Bevel Gear Case and Axle Case (4-Wheel Drive Axle) (continued)
Groundsmaster ® 3280-D/3320
05138SL Rev B
g226466
1. Axle support
2. Differential shaft gear
7. Temporarily install the bevel gear case/axle case assembly on the axle
support. Position a dial indicator at the tooths center. Prevent the axle
from turning and measure the upper bevel gear to the differential shaft gear
backlash (Figure 264).
Upper bevel gear backlash: 0.10 to 0.40 mm (0.004 to 0.016 inch)
8. Adjust backlash by increasing or reducing the axle bearing shim thickness;
refer to the Differential Shafts (4-Wheel Drive Axle) (page
Note: Axle bearing shims are available in 0.10 mm (0.004 inch), 0.20 mm
(0.008 inch), and 0.50 mm (0.020 inch) thickness.
g226467
1. Dial indicator
2. Axle bearing shims
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.
Figure 264
3. Upper bevel gear
4. Dial indicator
Figure 265
3. Axle cover assembly
4. Axle gear
Page 8–55
5. Axle bearing shims
8–57).
5. Lower bevel gear
Drive Axles: Service and Repairs