ALLIS-CHALMERS
Paragraphs 285-286
Fig,
AC 126
-
Model
CA
tractor Lambert
hand operated, self energizing, single
plate,
dry
disc type final drive clutch
as-
sembly
to
provide
continuous
power take-
off,
beit pulley,
and
hydraulic power lift
operation. Clutch unit
is
located
on
right
final drive unit differential (bull pinion)
shaft, Right brake drum
is
integral with
clutch.
Fig, AClU-Model CA
tractor.
Final drive
clutch
can
be
adiusted through opening
in
platform
and
final drive housing
by re-
moving adjusting
hub cap
screw
(40), and
rotating adjusting hub
(49;.
Fig, ACI2S-Model
CA
tractor.
Final drive
clutch
actuator support
(39),
release
bear-
ing (SO),
and
adjusting
hub (49; is
acces-
sible
for
overhaul after removing
the
right
final drive unit from
transmission
housing,
35.
Differential bearing carrier
40.
Adjusting hub cap screw
(49) counter-clockwise (viewed from
right side
of
tractor) until
a
.005 clear-
ance
is
obtained between
the
release
bearing
and
clutch.
285.
R&R AND
OVERHAUL.
To re-
move
the
assembly,
it is
necessary
to
first remove
the
tractor platform
and
the right hand final drive unit
as out-
lined
in
paragraph 274. Release bear-
ing (50—Fig. AC128)
can be
renewed
at this time, using
a
suitable puller.
Remove snap ring (53—Fig. AC129)
from shaft; then press
or
pull clutch
from
the
shaft. To disassemble
the
unit,
remove
the
nine Allen-head screws
(55) which should
be
unscrewed even-
ly until spring pressure
is
relieved.
Check
the
balls
and
ball seats
(56) for
wearing
or
scoring. Renew
the
clutch
hub bronze bushing
(54) if
running
clearance exceeds .012. Renew facings
if worn
or
oil-soaked; also
the
inner
seal
(3) in
differential carrier
if oil
leakage
is
apparent.
285A. When reassembling
the
unit,
use
the
differential pinion shaft
(41)
to align
the
clutch plate splines.
As-
semble
the
lined plate
(58)
with
the
long hub
of
same facing the differential
unit.
To
facilitate subsequent adjust-
ment, rotate
the
actuator
hub (49) as
far
as it
will
go
clockwise (viewed
from right side
of
tractor differential
unit.) After final drive
is
bolted
to
Fig.
AC730-Model G leff rear axle
housing
installation. Clutch actuating
rod
passes
through left axle housing,
X. Clutch pedal , 4. Belt pulley cover
2.
Rear axle housing 5. Clutch fork
3.
Pedal return spring 6. Clutch rod spring
transmission, readjust
the
clutch
by
rotating actuator
hub
counterclock-
wise until
.005
clearance
is
obtained
between release bearing
and
clutch.
Reinstall
the cap
screw
(40) to
lock
the adjustment.
AXLE
AND
HOUSINGS
Model
G
286.
AXLE SHAFT
AND
SLEEVE.
To remove either right
or
left axle
shaft
and
housing unit, block
up
trac-
tor, placing
the
blocking under
the
transmission case. Remove
the
rear
wheel. Remove
the
clutch pedal
rod
for removal
of the
left axle
and
hous-
42 43
39 46
61 55 60 59 58 57 55^^53
52
Fig, ACI29-Model
CA
fractor. Final drive clutch-exploded
view.
To
adjust
the
clutch
operating clearance
of ,005
between release bearing
(50) and
spring cover
(61),
rotate
adiusting
hub (49).
1. Woodruff key
2.
Bull pinion shaft (outer)
3.
Oil seal
(Diff.
brg. carrier)
39.
Actuator support
40.
Adjusting hub cap screw
41.
Bull pinion shaft (inner)
42.
Spring cup
43.
Retracting spring
46.
Ball seat
46.
Release ball & retainers
47.
Operating lever
48.
Retaining pin
49.
Adjusting hub
50.
BLelease bearing
51.
Release actuator
62.
Brake drum
63.
Snap ring
64.
Bushing
55.
Allen-head screws (9 used)
56.
DUc ball & seats
67.
Pressure plate
68.
Lined plate (disc)
59.
Secondary pressure plate
60.
Disc spring
&
seats
61.
Spring cover
79
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