Service manual

Groundsmaster 3280−D/3320 Page 8 − 37 Drive Axles
5. Remove the knuckle pin mounting screws and the
knuckle pin. Remove and discard o−ring (Fig. 66).
6. While holding the bevel gear case, lightly tap the up-
per end of the bevel gear shaft out of the upper bearing
and upper bevel gear.
7. Pull the bevel gear case from the axle case and re-
move the upper bevel gear, collar, spacer and thrust
washer from the gear case.
8. Remove the axle case cover screws, cover and O-
ring from the axle case.
9. Remove the plug and sealing washer (not shown)
from the center of the axle case cover. While holding the
axle case cover, lightly tap the lower end of the bevel
gear shaft out of the lower bearing and lower bevel gear.
10.Remove and discard bevel gear shaft seals from
bevel gear case and axle case (Fig. 66).
1. Knuckle pin
2. Shaft seals
3. O−ring
4. Bevel gear case
5. Upper bearing
6. Bevel gear shaft
7. Collar
8. Spacer
9. Upper bevel gear
10. Thrust washer
11. Lower bevel gear
12. Lower bearing
13. Axle case
14. Axle case cover
15. O-ring
Figure 66
1
3
4
5
6
7
8
9
10
11
12
13
14
15
2
17 to 20 ft−lb
(23 to 27 N−m)
17 to 20 ft−lb
(23 to 27 N−m)
Threadlocking
Compound
Inspection
1. Measure the knuckle pin O.D. and the axle case sup-
port bushing I.D. to determine the bushing to pin clear-
ance (Fig. 67). Replace components as necessary.
BUSHING TO PIN CLEARANCE:
0.002 to 0.016 in. (0.05 to 0.40 mm)
KNUCKLE PIN O.D. (Factory Spec.):
0.982 to 0.983 in. (24.95 to 24.98 mm)
AXLE CASE SUPPORT BUSHING I.D.
(Factory Spec.):
0.984 to 0.987 in. (25.00 to 25.08 mm)
2. Inspect all gears, shafts, bearings, cases and covers
for damage and wear. Replace components as neces-
sary.
1. Knuckle pin 2. Axle case support
Figure 67
1
2
Drive
Axles