TRUCK SERVICE MANUAL
INSPECTION AND REBUILD
Para 6-32 -34
pin 46 until the swaged end is sufficiently weakened.
Do not drill into metal of carrier 40.
(3) Place carrier assembly 38 in a press, and
press four pins 46 from carrier 40, shearing the drilled
ends of pins 46.
(4) Remove, as a unit, each of the four pinion
groups consisting of pinions 43, thrust washers 42 and
Refer to paragraph 6-2, above.
b. Assembly (A, foldout 13)
To facilitate assembly, it is permissible
to freeze pinion pin 46 or heat carrier 40
before pinion pin installation.
(1) Install a needle roller bearing 44 into the
bore of each pinion 43. Place a steel thrust washer 45
(first) and a bronze thrust washer 42 (second) onto each
face of pinions 43.
Fig. 6.69 Components of center planetary carrier
(2) Position carrier 40, front downward
(bushing bore upward), in a press. Place a pinion group
6-34. REAR PLANETARY CARRIER
(as assembled in (1), above) into the carrier. Align the
pinion group with the pinion pin bore in the carrier.
(3) Install a pinion pin 46, and press it through
Disassemble the planetary assembly
the carrier and pinion group, to the dimension shown in
only if there is evidence of undue wear
Failure of one pinion
requires the replacement of the entire
set, because the pinions are selectively
Pins must be a tight, to moderately tight,
press fit (when parts are at normal
a. Disassembly (A, foldout 13)
(1) If carrier 40 or bushing 41 is damaged or
otherwise unserviceable, replace with a carrier and
bushing assembly. Field replacement of the bushing
alone is not recommended.
accurately, drill into one end of each pinion