Quantcast Internal Brake Mechanisms (Semitrailer M270A1)

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roller end of brakeshoe, making certain end hooks of
spring
are
seated
in
grooves
in
pins.
(3) Loosen anchor pins by backing off anchor pin lock-
nuts and turn anchor pins to give minimum distance
between ends of brakeshoes at this point. Turn worm
shaft
of
slack
adjuster
to
give
minimum
distance
be-
tween
roller
ends
of
brakeshoes.
(4) Install hub and brake drum (par. 53c).
(5)  Adjust  brakes  with  "major  adjustment  (par.
56c(2)).
(6)
Install
wheels
52e).
58.
Internal  Brake Mechanisms (Semitrailer M270A1)
a. Removal.
(1)
Remove
wheels
52b).
(2)
Remove
hub
and
brake
drum
53a).
(3)
Remove
wheel
cylinder
hydraulic
lines
(fig.
at
wheel cylinders.
(4) Remove 10 safety nuts (rear of axle flange) and cap
screws which secure brake assembly to flange of axle.
Remove brake assembly from axle.
b). Installation,
(1) Position brake assembly on axle and against axle flange.
Rotate  brake  assembly  until  one  wheel  cylinder  is  at
top center. Aline holes in brake dust shield and axle
flange
and
install
ten
9/16
x
17/8
cap
screws
and
ten
9/16-inch
safety
nuts.
Tighten
nuts.
(2) Assemble wheel cylinder hydraulic lines (fig. 41) to
wheel cylinders.
(3)
Install  hub  and  brake
drum
(par.
53c)
and
adjust
brakes (par. 56 b).
(4)
Bleed
brake
system
66b).
(5)
Install
wheels
52e).
59. Air. Filter
To
drain
accu-
a.
of
Moisture
from
Air
Filter.
mulations of moisture from air filter, remove drain plug. Re-
place
plug
after
draining.
b.. Removal. Unscrew tube connectors and draw air line away
from filter. Remove two hex nuts and lockwashers from U-bolt
Remove
which secures filter to chassis frame cross member.
U-bolt and filter.
c. lnstallation. Position air filter on cross member of chassis
TACO 1321B
95



 


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