PEUGEOT 404 - Brake Shoe Adjustment; Front Brakes; The Braking System

CI{APTER
10
THE BRAKING
SYSTEM
10
:1 Description
10:2
Routine
maintenance
10:3 Brake
drums and brake
shoes
10:4 Checking
brake
pedal
travel
10
:5
Hydraulic
equipment
10:1 The description
The
braking system is
comprised
of
Bendix
brake
equipment operated
by
Lockheed hydraulic
controls.
The Íootbrake
operates through the hydraulic
system.
The Íront
brakes are oÍ
the
two-leading-shoe
type,
incorporating
two single ended cylinders
Íor each
pair
oÍ
brake shoes. The leading/trailing
shoe
rear
brakes are
each
operated by a
Íloating
type cylinder.
The
parking
brake operates
through
a
separate
mechanicai
system, the control
lever
being
connected
to the rear brakes by cable.
The master
cylinder
is
of
the
centre
valve type
with
the
reservoir
screwed to the
cvlinder
bodv.
Peugeot models
from
1965
are equipped with
Hydro-
vac vacuum
controlled
power
brakes.
Temoerature
compensated front brakes are
fitted
in
which the
fronl
brake drums are manufactured
from high
thermal
conductivity
cast
iron.
From 1969,
the Hydrovac is replaced
by Mastervac
vacuum
control and
disc brakes are fitted
to the front
wneets.
The
general
layout
of the three types
of system can
beseen in FlGS10:1.1O:2
and10:3.
P404
'l
0:6
Handbrake
adjustment
10
:7
Bleeding
the
hydraulic
system
10 :8
Disc
f ront
brakes
i
0
:9 Fault
diagnosis
10:2 Routine maintenance
Every 300 miles
check the
level
in the master
cylinder
reservoir
and top up
if
necessary,
The master
cylinder
reservoir
has a screw
cap, but
before adding fluid,
clean
the filler
cap to
prevent
dirt
entering the
reservoir.
Top
up the
reservoir
to
the
'Maxi'
mark
with
the
recommended
brake
fluid.
Use
only the
correct
fluid
and do
not
use
containers which
have
been
used for
other
fluids.
Contamination
spreads rapidly in
the hydraulic system,
causing a dan-
gerous
deterioriation
of
the
rubber
seals,
which
can cause
a
complete
failure
of the braking system.
Every 24,000 miles
or
18
months,
whichever
comes
first,
the whole brake svstem should
be drained and
refilled with clean Íluid.
Brake shoe adjustment
Front
brakes:
1 Apply the handbrake
and
jack
up the Íront
oÍ the car
until the wheels are free to rotate.
2 Turn one
of
the two adjusters
on the
brake backing
plate (see
FIG 10:4), in a forward
direction
until the
shoe is locked against
the drurn. Release the
adjust-
83