a. Brake Ad just ment
This semi
trailer is equipped with auto
matic
slack ad just ers which com pen sate for brake lin ing
wear and keep brakes ad justed. Brakes should not
be ad justed manu ally ex cept when re lin ing brakes.
b. Dis as sem bly for 12-1/4" X 7-1/2" Brakes
(See Fig ure 4-10)
1.
Re lease brakes and back off slack
ad juster.
2.
Re move slack ad juster lock ring and slack
ad juster.
3.
Re move drum as sem bly
(See Fig
ure
4-10).
4.
Re move an chor pin re tain ers, wash ers,
and bush ings.
5.
Re move an chor pins and brake shoes.
6.
Re move brake re turn springs.
7.
Re move cam shaft lock ring, spacer washer
and cam shaft
8.
Re move roller pin re tain ers.
9.
Re move roller pins and roll ers from shoes.
10.
Re move cam shaft bush ings and seals from
spi der.
11.
Af
ter re
mov
ing the shoes, com
pletely
in spect all brake com po nents, serv ic ing
as nec es sary.
c. Re
as
sem
bly for 12-1/4" X 7-1/2" Brakes
(See Fig ure 4-10)
1.
In
stall new cam
shaft bush
ing and seals
into the spi der.
IMPORTANT
WHEN IN
STALL
ING CAM
SHAFT SEALS, THE
SEAL ON THE SLACK AD
JUSTER SIDE IS IN
-
STALLED FAC
ING INTO SPI
DER. THIS AL
-
LOWS GREASE TO PURGE OUT
SIDE THE
BRAKE AS
SEM
BLY WHEN GREAS
ING THE
CAM SHAFT BUSH ING.
2.
In stall cam roller as sem blies onto the brake
shoes.
3.
In stall “D” shaped cam shaft washer onto
the cam shaft.
4.
In stall the cam shaft into the spi der. In stall
spacer washer and lock ring re
tainer on
cam
shaft be
fore slid
ing the cam
shaft
through the cam
shaft sup
port bracket.
In stall the slack ad juster, washer and lock
ring re tainer.
5.
In stall shoes, an chor pin bush ings, an chor
pins, and spac
ers onto spi
der. In
stall
an chor lock rings.
IMPORTANT
AL
WAYS USE ALL NEW SPRINGS WHEN
SERV IC ING BRAKES.
6.
In stall brake re turn spring.
7.
Con nect slack ad juster to brake cham ber
pushrod.
8.
Ad just auto matic slack ad juster as out lined
in
Sec tion
4-19
Содержание 318C
Страница 3: ...MODELS 318C BOEING TRAILER OPERATOR S MANUAL PURCHASED FROM DATE ADDRESS PHONE NO SERIAL NO i...
Страница 8: ......
Страница 12: ......
Страница 32: ...3 20 FIGURE 3 6 STEPS FOR LOADING AND UNLOADING...
Страница 36: ...3 24 FIGURE 3 8 REAR IMPACT GUARD AND ANTILOCK BRAKE SYSTEM...
Страница 52: ...4 14 FIGURE 4 6 CHECKING AXLE ALIGNMENT FIGURE 4 7 EXAMPLES OF CAMBER...
Страница 56: ...4 18 FIGURE 4 10 AXLE AND BRAKE ASSEMBLY...
Страница 64: ...4 26 FIGURE 4 16 MOUNTING TIRES AND WHEELS FIGURE 4 17 STUD TIGHTENING SEQUENCE...
Страница 76: ...5 10 NOTES...