Datsun 411 Series User Manual

MASTER CYLINDER
CHASSIS
This
is consists of an
alloy body
with a
polished
finished
bore
and reservoir
with
cap
The inner
assembly
is made of the
push
rod
stoper plate
ring piston secondery
cap
return
spring
let
out
valve
and check valve seat
The
open
end of
the
cylinder
is
protected
by
a rubber boot as
shown
Fig
disassembling
the
Brake
Master
Cylinder
Disconnect the
pressure
pipe
union from the
cylinder
and remove
the
securing
bolts when
the
master
cylinder
and fluid
reservoir
may
withdrawn complete
from the ar Remove the
filler
cap
and drain
out fluid Pull
back
the
rubber
boot
and remove the
stopper ring
with
a
pair
of
long
nosed
pliers
The
push
rod
assembly
can
then be
removed When the
push
rod
has
been removed the
piston
with
the
secondary
cap
will be
xposed
therefore remove
the
piston assembly
complete
The
assembly
can
be separated
by
taking
out
other small
parts
Examine all
parts
especially
the
rubber
primary
cap
for wear of distortion and
replace
with new parts where
necessary
GASKET filler
SET CAP
s
ap
fille
s
SPRING
eturn
brake
pedal SPACER
piston up
r
1
PISTON
brake
sterj
1
1
AS Y
VALVE
aJP
piston secondary
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SPRING
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ASS
y ROD
P
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I
alve
SEAT
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i
n
alve BOLT
NUT
RING
soap
BUSHING
1
pedal PIN fulcrum
fulcrum
PlN SLEEVE
pedal
shaft
STOPPER
clevis
brake pedal
brake
master
cyl
ASS Y PEDAL
brake
Fig
11
Brake Master
Cylinder
Bleeding
the
Hydraulic System
Bleeding
is
necessary
any
time a
portion
of
the
hydraulic
system
has been
disconnected
or
if the level of the brake fluid has
been
allowed
to
fall so
low
that
air has entered the master
cylinder
With all the
hydraulic
connections
secure
and
the
supply
tank topped up
with
the
fluid
remove the
cap
from the bleed valve
and fit the
bleed tube
over
the
bleed valve
immersing
the
free end of the tube
in
a clean
jar
containing
a
liltle brake fluid
Unscrew the bleed valve cap about
three
quarters
of a turn and then
operate
the brake
pedal
with a slow full stroke until the fluid
entering
the
jar
is
completely
free
of air
bubbles
Then
during
a downstroke
of
the
brake
pedal tighten
the bleed screw
cap
sufficiently
to seat
remove bleed tube
This
process
must
now be
repeated
for each
of the other wheel
cylinder
Always
keep
a careful check
on the
supply
tank
during bleeding
since it
is
most
important
that
a full level is maintained
Should
air
reach the
master
cylinder
from
the
supply
tank
the
whole of
the
bleeding opera
tion must
be repeated
After
bieeding top up
the
supply
tank to its
correct level of
approximately
three quarters
full
l2
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Datsun 411 Series Specifications

General

Brand	Datsun
Model	411 Series
Category	Automobile
Language	English