Ford Thunderbird 1966 User Manual

PART
2-2
-BRAKE SYSTEM
2-9
FORWARD
ANCHOR
PIN
PARKING
BRAKE
LEVER
RETAINING CLIP
WASHER
PARKING
BRAKE
LEVER
CABLE
GUIDE
PARKING
BRAKE
LINK
LINK
SPRING
CABLE
CABLE
HOOK
PIVOT
HOOK
ADJUSTING LEVER
PRIMARY SHOE
PARKING BRAKE
CABLE
HOUSING
RETAINER
AUTOMATIC
ADJUSTER
SPRIl'G
ADJUSTING
SCREW
PIVOT NUT
PARKING
BRAKE CABLE
AND
HOUSING
H1384-A
FIG.
4
Thunderbird Self
Adjusting
Broke
Assembly
Rear
Wheel
from
the anchor pin.
The movement
of
the
secondary
shoe causes the cable
to
pull
the
adjusting
lever upward
and
against
the end
of
a
tooth
on the
ad
justing
screw
star-wheel. The
upward
travel of the
lever increases as
lining
wear
increases.
When
the
lever can
move
upward
far
enough,
it
passes
over the
end
of the
tooth and
engages
the
tooth.
When the brakes are
released,
the
adjuster
spring
pulls
the
lever
downward
causing
the
star-
wheel to
turn and
expand the shoes.
The
star-wheel
is
turned one
tooth
at
a
time
as
the linings
progressively
wear.
With
the
car
moving
forward and
the
brakes
applied,
the
secondary
shoe is
against
the
anchor pin
and
the
primary
shoe is
moved toward the
drum.
Therefore,
the
adjuster does
not
operate.
The
conventional
parking
brake
lever,
link,
and
spring
are used
in
the
rear
brake.
The
anchor
pins
are fixed
and
non-adjustable.
BOOSTER
SYSTEM
DESCRIPTION
The
tandem
diaphragm
type
Master
Vac
is a
self-contained
vacuum
hy
draulic
power
braking
unit.
It is
of
the
vacuum
suspended
type
which
utilizes
engine intake
manifold
vacuum
and
atmospheric pressure
for its
power.
Adjustment of the push
rod
is
the
only
service permitted on this
booster.
The booster unit
is
to
be
exchanged
when it is determined to be
defective.
PARKING
BRAKES
An
independent
foot-operated
park
ing
brake
control
(Fig.
5)
actuates
the
rear wheel
brake shoes through
a
cable
linkage. The
operating
cable is
routed from
the
parking
brake
control
assembly
to the
equalizer
lever which
is
attached
to the
equalizer
assembly.
The
rear
brake
cables
connect
the
equalizer
assembly
to
the
parking
brake lever
at
each
rear
secondary
shoe (Fig.
1,
Part
2-1
and
Fig. 18).
When
the pedal
is
depressed the sec
ondary
brake
shoes
are forced
against the rear
brake
drums. The
pedal
is
held
in
the
applied
position
by
the
engagement of
a
spring-loaded
pawl
with a
ratchet in
the control
as
sembly.
A vacuum
power
unit will
release
the
parking
brakes
automatically
when the
transmission
selector
lever
is
moved
into
any
drive
position
with
the
engine
running.
The
brakes
will
not
release
automatically,
however,
when
the
selector
lever
is in
the
PEDAL
MOUNT
VACUUM
POWER
PISTON LINK
RELEASE
LEVER
LEFT
SIDE
FIG.
5
Parking
Brake Control
Assembly
H1312-A

Ford Thunderbird 1966 Specifications

General

Brand	Ford
Model	Thunderbird 1966
Category	Automobile
Language	English