Quantcast Brake Air Chamber and Hydraulic Master Cylinder

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voir
and
tighten
connector.
Perform leakage test (b)
above) .
d.
Semitrailers M270 and M269
12).
f air lines,
Caution: Before attempting to remove components
Q
release air pressure from system by opening drain cock on air
reservoir.
(1) R e m o v a l . R e m o v e e m e r g e n c y r e l a y v a l v e ( p a r . 6 0 e ( 1 ) ) .
Remove four hex-head bolts, plain washers, and safety
nuts which secure air reservoir to two brackets welded
to chassis frame cross members. Lower reservoir and
remove two grommets from top of each bracket ex-
tending from end of reservoir and two cushioned clips
securing hose assemblies to brackets.
(2) Installtion.
Position
air
reservoir
under
two
brack-
Place
ets welded to chassis frame cross members.
two grommets on top of bracket extending from each
end of reservoir. Aline grommets, and holes in bracket
at each end of reservoir with holes in brackets welded
to
cross
member
and
insert
(downward)
four
3/8
x
1
Install one 3/8-inch plain washer, one
hex-head bolts.
cushioned clip with hose assembly attached, and one
3/8-inch safety nut on each inner 3/8 x 1 hex-head
bolt. Install one 3/8-inch safety nut and one 3/8-inch
plain
washer
on
each
remaining
3/8-inch
bolt.
In-
stall
emergency
valve
(par.
60e(2)).
Perform
leakage test (b above).
62.
Brake Air Chamber and Hydraulic Master Cylinder
(Semitrailer
M270A1)
With brakes applied fully, coat brake air
a. Leakage Tests.
flanges,  connections, and plug with soapsuds to check
chamber
If
leakage
is
found
No
leakage
is
permissible.
for leakage.
at flanges, tighten flange screws evenly and sufficiently to stop
Do not tighten flange screws too tight as it will distort
leak.
flanges and cause new leakage. If leakage is found at con-
Coat  area  be-
nection or plug, tighten connector and plug.
tween brake air chamber body and mounting bracket, and drain
If leakage, is found, notify ordnance
hole to check for leakage.
inaintenance
personnel.
TAGO 1321 B
99



 


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