Paragraph
206
Cont.
ALLIS-CHALMERS
ment
box, and
left brake linkage from
pedal. Disconnect right brake linkage
from pedal
by
loosening left brake
pedal-to-pedal shaft
set
screw,
and
moving pedals toward left side
of
tractor. Disconnect
and
remove brake
pedal-to-brake band toggle linkage.
Remove tractor seat, seat
bar, and
shock absorber assembly.
Remove both fenders, rockshaft
and
supports, hydraulic lift control quad-
rant, platform,
and
both rear wheel
and tire units. Remove hydraulic unit
hold positioning valve, rams,
and
hoses
48
50
45
Fig.
AC91
-
Model
CA
trans-
mission shifter rails, forks,
and cover assembly.
45.
1st
&
4th gear fork
46.
2nd & Zrd gear fork
48,
Reverse gear fork
50.
Reverse selector
51.
Reverse gear rail
52.
2nd & 8rd gear rail
53.
1st
&
4th gear rail
as
an
assembly,
by
removing
two
bolts
retaining hold positioning valve
to
hydraulic pump. Disconnect drawbar
to hydraulic lift pump linkage. Loosen
drawbar rear bracket retaining bolts
to provide clearance
for
removal
of
PTO (accessory units) housing.
Re-
move
PTO
(accessory units)
and
housing
as an
assembly. Unbolt
and
remove both final drive assemblies
from transmission housing. Remove
cap screws from differential bearing
carriers
on
each side. Pull carriers
away from transmission housing; then
lift
out the
bevel ring gear
and
differ-
ential unit rearwards. Remove four
nuts retaining transmission housing
to
torque tube; separate
the two
assem-
blies slightly; then remove clutch
shaft
to
transmission mainshaft
re-
taining cotter
key.
Move torque tube
away from transmission.
OVERHAUL. Data
on
overhauling
the various components which make
up
the
transmission
are
outlined
in
the following paragraphs. Particular
care
and
attention should
be
given
to
the reinstallation
of the
bevel pinion
shaft
and
gears assembly
so as to pre-
fig, AC92-Modet
CA
1. Bearing retainer
2.
Shims
3.
Bearing
4.
2nd gear (26T.)
5.
Reverse gear (19T.)
6. 3rd gear (SOT.)
7.
4th gear (49T.)
8. Spacer (long)
9. let gear (18T.)
transmission shafts, bevel pinion, ring gear,
and
differential unit
are
contained
in
10.
Bearing 19. Shims 26. Bevel ring gear &
20.
PTO shaft
21.
Belt pulley shaft
22.
Shims
23.
Accessory units driven &
belt pulley drive gear
24.
Shims
25.
Differential unit & bull
pinion shaft
11.
Snap ring
12.
Oiling cup
13.
Accessory units drive gear
shift lever
14.
Hydraulic lift pump
15.
Accessory units drive gear
16.
Snap ring
IS.
Snap ring
differential unit
27.
1st gear (50T.)
28.
Coupling
29.
4th gear (24T.)
30.
3rd gear (37T.)
31.
Reverse gear (30T.)
32.
2nd gear (41T.)
83.
Snap ring
fhe transmission housing,
34.
Gasket
35.
Bearing
36.
Retaining nut
37.
Bevel pinion shaft cover
38.
Bevel pinon shaft
39.
Shims
40.
Thrust washer
41.
Main shaft
42.
Oil seal
58
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