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29. Position right hand and left hand roller adjusting nuts
on roller bracket assemblies. Secure in place with
capscrews and lockwashers.
30. Press bearing cups in ring gear hub. Assemble bearing
cone to left side of stub shaft. Place large ring gear and
hub assembly over stub shaft and bearing cone.
31. Place another bearing over stub shaft and into ring gear
hub.
32. Position wheel hub nut on stub shaft and run down with
an open end wrench. Adjust bearing by tightening nut
until slight drag is felt when wheel bolt is rotated.
33. Press seal into gear case cover. Position gasket on gear
case. Lightly lubricate wheel hub seal in gear case
cover.
34. Position left hand gear case cover and secure with ten
(10) self tapping screws. Torque screws to approx. 125
in. lbs. (14.1 N–m) evenly and gradually.
35. Add approximately 15 ounces (0.44 1) of SAE 80–90
gear lubricant to gear. DO NOT OVERFILL.
36. Place O–ring into recess in wheel hub.
37. Secure the wheel to the wheel hub with four (4)
capscrews.
38. Repeat steps 30–37 on opposite side.
Roller Disassembly
As viewed from rear
Figure 33
1. Remove brackets and washers from each end of roller
and inspect bushings.
2. Remove elastic stop nut.
Note: After elastic stop nut has been removed, slide sleeve
off roller shaft. Point end of roller downward into a
container, at the same time pulling roller shaft out, allowing
lubricant to drain from roller.
3. If roller shaft is to be replaced, remove double jam nuts.
4. Remove remaining sleeve and seals from both ends of
roller.
5. Remove bearing cones from each end of roller.
6. Remove bearing cups with caution.
7. Remove inner seals by using a seal remover.
Roller Assembly
1. Lightly oil lips of inner seals. Install inner seals on each
end of roller, making sure that garter springs face
inboard.
2. Replace bearing cups and insert bearing cones into
roller.
As viewed from rear
3. Lightly oil lips of outer seals. Install outer seals on each
end of roller, making sure that garter springs face
inboard.
4. Slide one (1) sleeve onto roller shaft against double jam
nuts.
5. Wrap threaded area of roller shaft with cellophane tape
to protect seals, and carefully slide shaft through
right–hand side of the roller. Slide roller shaft into roller
until it penetrates the inner most oil seal on the
right–hand side.
6. Pour approximately one (1) pint (16 ounces [0.0296 l)
of SAE 90 or 140 gear oil into the roller housing.
7. After oil has been added, carefully push roller shaft
through the entire roller assembly. Remove cellophane
tape.
8. Install sleeve on roller shaft and slide up against bearing
cone.
9. Install elastic stop nut and secure by holding double jam
nuts. Tighten elastic stop nut (Fig. 35).
Note: Tighten elastic stop nut until all axial and radial
motion has been removed from the roller shaft and
bearings. Ensure that roller rotates freely on shaft.
10. Grease bearings with Heavy Duty 2 wheel bearing
grease.
11. Reinstall washers and install left and right–hand bracket
and bushing assemblies.
18
Figure 34
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