POWER TRAIN
DISASSEMBLY AND ASSEMBLY
15.
16.
17.
FINAL DRIVES
Install bearing (20) on the shaft. Install washer
(18) on the face of the outer housing. Washer
(18) is in three sections. Put some clean grease
on the washer. Install shim pack under washer
(18). If shim pack was not damaged during
removal and same housings are used, use old
shim pack. If using new shim pack, adjust
shims to provide end play between inner and
outer housings of 0.0 and 0.6mm (0.0 to
0.0025 ") end play. Install retainer (19) on the
washer. Install bolts and the washers that hold
the retainer. Tighten the bolts to a torque of
270 ± 10 lb. ft. (36.7 ± 1.4 mkg).
Install tooling (H) on the rear wheels.
Fasten a hoist and chains to the tandem
housing. Fasten chains and tooling (F) to
the hoist and the rear wheels. Put the
tandem housing and tooling (G) in position
on the final drive housing and the shaft.
Install the nuts and the washers that hold
the tandem housing to the final drive
housing. Tighten the nuts to a torque of 270 ±
10 lb. ft. (36.7 ± 1.4 mkg.)
Remove tooling (F) and (H) from the
tandem housing and the rear wheels. Re-
move tooling (G) from the sprockets. Con-
nect air line (21) to its correct location.
Install the covers and the gaskets on the
tandem housing. Install the nut that holds
the sprockets on the shaft.
CAUTION: The following procedure must be used
to put the correct amount of preload on the
bearings for the final drive:
A. Tighten the nut to a torque of 100 ± 10 lb.
ft. (13.8 ± 1.1 mkg) with tooling (A).
B. Turn the wheels to put the bearings in
their seats.
C. Hit the hub of the sprocket with a large
punch and a hammer.
D. Repeat Steps A, B and C until the nut
does not turn when it is tightened.
E. Loosen the nut.
F. Tighten the nut to a torque of 50 lb. ft.
(6.9 mkg).
G. If the nut is in a locking position, install
the axle, the cover and bolts.
TM 5-3805-263-14&P-2
H. If the nut is not in a locking position,
tighten the nut to the next nearest
locking position. Install the axle, the
cover and the bolts.
18. Bend the locks against the bolts. Fill the
tandem housing with oil to its correct level.
19. Do Steps 1 through 18 for the other final
drive.
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