Power Train Disassembly & Assembly
Remove the Planetary Spider
Assembly
NOTE : If only the planetary pinions (9) are removed
for inspection without removing the pinion shaft (7),
proceed to Step 5.
1. With a lifting device, remove the planetary spider
(3) from the wheel hub (23) and set it on a work
bench. Rest the spider on its large flange end.
2. Match mark the outer ends of the pinion shafts (7)
and the planetary spider (3) to aid in reassembly if
the original pinion shafts are used.
3. Remove the set screw (4) from each of the pinion
shafts (7).
Observe all warnings and cautions provided by
the press manufacturer to avoid damage to
components and serious personal injury.
Use a brass or leather mallet for assembly and
disassembly procedures. Do not hit steel parts
with a steel hammer. Pieces of a part can break off
and cause serious personal injury.
CAUTION : Avoid damage to the pinion shaft when
it falls out of the spider. Provide a soft cushion.
4. Use a press to remove the pinion shafts (7). If a
press is not available, use a brass drift and mallet
to drive out the shaft. Press or drive the pinion
shaft out toward the large flange end of the
planetary spider.
5. Remove the snap ring (11), inner thrust washer
(10), planetary pinion (9) and outer thrust washer
(8) from each pinion shaft (7).
6. If the axle shaft thrust button (6) is worn, press it
out toward the large end of the planetary spider.
NOTE : The sun gear thrust washer (14) may come
out with the axle shaft and sun gear assembly.
7. Remove the axle shaft (30), planetary sun gear
(13) and snap ring (12) assembly.
8. If necessary, remove the snap ring (12) from the
axle shaft (30) to allow for the removal of the sun
gear (13) and sun gear thrust washer (14).
9. If necessary, remove the sun gear thrust washer
(14) from the end of the planetary ring gear (15).
10. Remove the planetary ring gear (15).
11. Remove the wheel bearing adjusting nut (17).
CAUTION : The outer bearing cone (18) will be loose
as you pass it over the end of the spindle (29). Hold
the cone securely to avoid dropping it and causing
damage to the cone.
12. Remove the wheel hub assembly (23). The wheel
bearings (18, 19, 24, 25) and oil seal (26) will
come off with the wheel hub.
CAUTION : Do not damage the hub oil seal bore
surface in the wheel hub. Damage to this surface will
result in oil leakage after assembly.
13. Remove the wheel hub oil seal (26) from the
wheel hub (23).
14. Remove the inner bearing cone (25).
15. If replacement of the wheel bearings is
necessary, press out the outer bearing cup (19)
and inner bearing cup (24) from the hub.
16. Remove and discard the O-ring (20) from the
wheel hub (23).
Disassemble the Brake
To disassemble the brake, refer to brake section of
this manual.
NOTE : If it is necessary to drive out the anchor pins
with a mallet and brass drift, remove the brake dust
shields for proper access to the anchor pins.
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