ALLIS-CHALMERS
Paragraphs 303-30SB
the band by pulling up and rearward
on toggle end of same.
303.
R&R BRAKE DRUM. On mod-
els equipped with pto, to remove the
right hand brake drum (which is in-
tegral with the final drive clutch),
first remove the right hand side final
drive unit as in paragraph 274; then
remove the final drive clutch from
shaft, and disassemble by removing
nine Allen-head screws.
To remove the left hand brake
drum, first remove the left final drive
unit as outlined in paragraph 274; then
remove the drum from the bull pinion
shaft using a suitable extended puller.
Use this same procedure for the
right hand drum on models with the
continuous type pto.
Model G
The 8 inch Bendix brakes, shown in
Fig. AC137 are of the internal expand-
ing type, bolted to the differential
bearing carrier (10—Fig. ACllO). The
brake drums are pressed and keyed
directly to the wheel axle shafts as
shown in Fig.
AC131.
304.
Each pedal should have ap-
proximately IV2 in. of free travel be-
fore lining contacts the brake drum.
To adjust, raise rear wheel and re-
move brake rod (2—Fig. AC137) from
pedal. To reduce free travel (tighten
brake),
turn brake rod into brake lev-
er attaching yoke end (1). Both brakes
should be adjusted equally.
304A. To remove brake shoes, first
remove axle housing and shaft units as
outlined in paragraph 286. The shoes
can then be detached from their an-
chorages on the differential carriers.
Brake shoes are interchangeable and
Rod adjusting yoke
Brake rod
Brake rod lever
Pedal lock shaft
Pedal lock
Left brake pedal
Right brake pedal
Shoe support plate
Shoe return spring
Shoe
Lining
Rivet
Brake shoe cam
Brake lever cam
Operating lever
Operating lever
stud
Pedal return spring
Pedal shaft
Set screws
Rod yoke pin
Fig.
AC 137—Model
G linkage and components for the Bendix brake
unit.
Pedal stop
Is
shown
at point (X),
the top of the shoe may be identified by
the cutout section in the cam surface.
Install new linings on shoes so that
lining ends are fiush with lower end of
shoe.
304B.
To remove brake drum, first
remove axle housing and shaft unit, as
in paragraph 286; then pull drum from
inner end of axle shaft. When new
pedals are installed, the pedal stop
shown at point "X" must be filed to
position the pedals approximately 4 in.
below the seat attaching pad and to
have the pedals level with each other.
Models RC-WC-WF
305.
To take up on brakes, remove
fenders and brake lever covers and
turn adjusting nut (2—Fig. AC138)
until a slight drag is obtained when
rotating wheel; then back off
^/2
to %
of a turn. Do the same to the other
brake.
305A. To remove brake band assem-
bly, remove fender and brake lever
9
1.
Hairpin locka
2.
Band pivot pin
3.
Spring
4.
Adjusting screw
6. Toggle pin
6. Toggle
7.
Band centering washers
8. Brake drum key
9. Brake drum
10.
Brakeband
11.
Band anchor pin
Fig, ACf
36—Model
CA brake assembly—exploded
view.
Brake
drum (9) is used in both right and left units for tractors not
equipped with a continuous type pto. For models equipped
with a
continuous
type pto, the right unit brake drum is in-
fgrmi with the final drive
clutch*
cover. Remove the adjusting nut (2)
also the spring (9). Push bolt out
of toggle (3). Remove cotter pin from
brake lever shaft (10) and bump shaft
out of the housing key against inner
bushing (12). Continue bumping until
shaft and bushing are out of housing.
Brake band can now be withdrawn
from housing. It may be necessary to
install a new inner bushing (12) due
to possible damage during its removal.
305B.
To remove brake drum, follow
the procedure outlined in paragraph
277.
Fig.
AC13B-Models
RC,
WC, and WF brake
unit which is located on each final drive
bull pinion shaft.
1.
Housing cover
2.
Adjusting nut
3.
Band toggle
6. Drum key
6. Bull pinion shaft
7.
Brakeband
8. Drum
9. Band spring
10.
Lever Shalt
11.
Lever lock
12.
Lever shaft bushing
IS.
Drum set screw
81
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