Paragraphs 241-241A
ALLIS-CHALMERS
37
MS.
Transmission mainshaTt
35.
Differential bear in
K
carrier
36.
Sliding gear
37.
Snap rin?
is originally riveted to the differential
case.
The preferred method of re-
moving the rivets is by drilling. If ring
gear is removed, it may be re-attached
with cold rivets or (on B, C, and CA
only) by use of heat-treated alloy
bolts available from AUis-Chalmers
dealers. Dor^^t use ordinary bolts. When
re-riveting, temporarily bolt the gear
to the differential case, and be careful
to avoid distortion of gear or case.
After ring gear is attached, check
trueness at ring gear back face with
a dial indicator with unit in its car-
riers or between centers of a lathe.
Total run-out should not exceed .003.
After unit is reinstalled in transmis-
sion, adjust bearings and backlash as
outlined in paragraph 240A.
35/
26.
Bevel ring gear
27.
Pinion shaft
28.
Pinion shaft retaining
pin
29.
Differential case
31.
Thrust washers
32.
Side gears
33.
Pinion gears
34.
Thrust washers
Pig, ACI07~Mocfel
CA
two pinion, open case iype differ'
entiai unit is located back of the transmission housing
dividing
wall.
Sliding spur gear (36^ on transmission
mainshaft
(MS)
supplies power to the accessory units.
Models B, and C are similar,
shims from carrier on ring gear side of
housing and install same under carrier
on opposite side.
241.
R & R AND OVERHAUL. To
remove the differential unit from the
transmission housing, first drain the
transmission and pto or accessory
unit housings. Remove both final drive
units as outlined in paragraph 269 for
B and C or 274 for the CA. Remove
the pto main housing from rear face
of transmission. Remove differential
carrier (each held to transmission by
four cap screws) from each side of
transmission, including the final drive
actuator clutch support (39—Fig,
AC128) on CA. Do not mix the shims.
Tilt differential down and toward the
left and lift it from the transmission.
241A. To disassemble differential,
drive out the lock pin (28—Fig.
AC106) (drive from left to right) and
remove pinion pin (27). Pinion gears
(33),
side gears (32), and thrust wash-
ers (31 & 34) can then be removed
from the case.
Recommended backlash of .005 be-
tween teeth of side gears and teeth of
pinions is controlled by the copper
plated side gear thrust washers (31)
and/or the pinion thrust washers (34).
Pinion gears are equipped with bush-
ings,
but the bushings are not avail-
able for service.
The bevel ring gear, which is avail-
able separately from the bevel pinion,
31
32
34
33
Fig, AC 108—Models
fi,
C, and CA main drive bevel ring gear,
and differential unit. Bevel ring gear is available separately
from the bevel pinion,
Bither
cold rivets or special heat-treated
steel bolts and nuts for attaching the ring gear to the case
are supplied for service.
S.
on
seal
(In
carrier)
85.
Differential bearing
carrier
38.
Shims
Fig. AC 109—Model CA differential bearing carriers are acces-
sible after removing the final drive housing. Models B, and C
are similar. On
CA
models equipped with continuous type PTO,
also remove tke final drive clutch actuator support from the
right aide.
70
To Next Page
Loading...
