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Groundsmaster 4500--D/4700--D Page 6 -- 25 Axles, Planetaries and Brakes
5. Remove the knuckle pin mounting screws and the
knuckle pin. Remove the gasket andany remaining gas-
ket material from either mating surface (Fig. 23).
6. While holding the bevel gear case, tap the upper end
of the bevel gear shaft out of the upper bearing and up-
per bevel gear.
7. Pull the bevel gear case from the axle case and re-
move the upper bevel gear and collar from the gear
case.
8. Remove the axle case cover screws, cover and the
O-ring from the axle case.
9. Remove theplug and sealing washer from the center
of the axle case cover. While holding the axle case cov-
er, 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 seal from axle
case (Fig. 23).
1. Knuckle pin
2. Mounting screw (4 used)
3. O--ring
4. Bevel gear case
5. Upper bearing
6. Bevel gear shaft
7. Collar
8. Upper bevel gear
9. Lower bevel gear
10. Lower bearing
11. Axle case
12. Axle case cover
13. O-ring
14. Shaft seal
15. Bushing
Figure 23
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
17 to 20 ft--lb
(23 to 27 N--m)
17 to 20 ft--lb
(23to27N--m)
Thread--locking
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. 24). 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 t o 0.983 in. (24.95 to 24.98 mm)
AXLE CASE SUPPORT BUSHING I.D.
(Factory Spec.):
0.984 t o 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 24
1
2
Axles, Planetaries
and Brakes