SECTION 8
FINAL DRIVE
carrier and gear. Lift out planetary pinion gear, thrust
8-7. CLEANING AND INSPECTION.
washers, and bearings (see figure 8-15).
8-8. All gears (including both sun gears), carrier, pins,
CAUTION: The bearing cones will fall out of the pinion
plates, and capscrews should be cleaned in solvent.
gear as soon as they are free to do so. Keep
Inspect each gear for galling, nicking, chipping and
each cone with its respective cup by tying
cracking, especially at the root of each tooth.
them in position in the pinion gears.
Remove the other two, pinion gears from the
8-9. All bearings should be washed in fresh solvent.
carrier using the same procedure. Keep each
Agitate in the solvent; do not use a brush as some of the
gear and its associated parts separate. Do
bristles may break off and lodge in the bearing. Blow
not mix component parts.
u.
Inspect each bearing cup and cone, including
those not removed from the pinion gears, and replace if
rollers or cups are worn, pitted or damaged in any way.
Remove parts needing replacement (see figure 8-16).
v.
Remove bearing cups from planetary pinion
with a small soft punch and hammer.
NOTE: A snap ring separates and locates the two cups in
each pinion gear. Remove the lower cup only,
i.e., the pinion must be turned over once to
remove both cups (see figure 8-17).
w.
Remove the snap ring with a screwdriver or a
small pry bar and inspect for chipping or wear. Replace if
necessary (see figure 8-18).
x.
Place the outer planetary assembly on a
protective surface with the large splined hub upward.
FIGURE 8-17.
Follow steps q through w of the inner planetary
disassembly procedure.
FIGURE 8-16.
FIGURE 8-18.
8-6
