Ford Thunderbird 1964 - Cleaning and Inspection; Brake Assembly; Booster Unit Disassembled

PART
2-1
GENERAL
BRAKE
SERVICE
25
CLEANING
AND
INSPECTION
BRAKE
ASSEMBLY
1.
Remove the
wheel
from the
drum,
and
remove the drum
as
out
lined
in
Part
2-2,
Section 2. Wash
all
the
parts except
the brake shoes
in a
cleaning
fluid and
dry
with
com
pressed
air.
2.
Brush all
dust
from
the
carrier
plate
and
interior of
the brake
drum.
3.
Inspect
the
brake
shoes for
ex
cessive
lining
wear or shoe
damage.
If
the
lining
is
worn
to
within
V/a
inch of the
rivet
heads or
if the
shoes
are
damaged,
they
must be replaced.
Replace
any
lining
that
has
been
oil
saturated.
Replace the
lining
in
axle
sets. Prior
to replacement of the
lining,
the
drum diameter should
be
checked to determine if
oversize
lin
ings
must be
installed.
4.
Check the
condition
of
the
brake
shoes,
retracting
springs,
and
drum for
signs
of overheating.
If
the
shoes
have
a slight
blue
coloring,
or
if the
springs
show
a
change
in
free
length,
indicating
overheating,
re
placement
of the
retracting
and hold
down
springs is
necessary.
Over
heated springs
lose their
pull and
could cause the
new
lining
to
wear
prematurely
if
they
are not
replaced.
5. If
the
car has
24,000 or
more
miles
of operation
on
the
brake
linings,
or signs
of
overheating
are
present
when
relining
brakes,
the
wheel cylinders
should be
disassem
bled and inspected for wear
and dirt
in the
cylinder. The cylinder
cups
should be
replaced,
thus
avoiding
future problems.
6. Inspect
all
other
brake parts
and replace
any
that
are worn or
damaged.
7. Inspect
the brake
drums
and,
if
necessary,
refinish. Refer
to
Part
2-2,
Section
4
for refinishing.
BOOSTER
UNIT
A
disassembled
view of
the
brake
booster is
shown
in
Fig. 5.
After
disassembly,
immerse
all
metal parts
in a
suitable
solvent.
Use
only
alcohol
on rubber
parts
or
parts
containing
rubber.
After
the
parts
have been
thoroughly
cleaned
and
rinsed in
cleaning
solvent,
the
metal
parts which
come
in
contact
with
hydraulic
brake fluid
or
rubber
parts
should be
rewashed in
clean
alcohol
before assembly.
Use an
air hose
to
blow
dirt
and
cleaning
fluid
from the
recesses
and
internal
passages.
When
overhauling
a
power
booster,
use
all
parts
furnished
in the repair
kit.
Discard
all old
rubber parts.
Inspect
all other
parts
for
damage
or
excessive wear.
Replace
damaged
or
excessively
worn parts. If the
in
side of
the booster
body
is
rusted
or
corroded,
polish
it with
steel
wool
or fine
emery
cloth. Replace
the
body
shell when
scored.
VACUUM
MANIFOtDs^W?^?
GROMMET
AIR
FILTER
BOOSTER BODY
BELLOWS
RETAINER
BELLOWS
SUPPORT
RING
PUSH
ROD
CUSHION
RING
e^fJiK
FILTER
COVER
HUB
RUBBER
REACTION RING
REACTION
LEVER
AND
RING
ASSEMBLY
REACTION
CONE
i&^S
BELLOWS
BELLOWS
RETAINER
RING
BODY
RETAINING SCREW
TAPPING CHANNEL
_.
~"
FIBER
GASKET
CONTROL
VALVE
PLUNGER
DIAPHRAGM
(HUB-TO-PLUNGER
/
ASSEMBLY
CUSHION
RING)
__/^
HUB
REAR SEAL
AND
ADAPTER
ASSEMBLY
RETAINER
ATMOSPHERIC VALVE
O-RING
(HUB-TO-DIAPHRAGM)
PUSH ROD
LINK
OPERATING
ROD
PLASTIC
RETAINER
BOOT
END
PLATE
BRACKET
FIG.
5-Booster
Unit
Disassembled
<V-
PIVOT PIN
LEVER
H1308-A