5D-1
DSSC
BRAKES
CONTENTS
OF
THIS
SECTION
PAGE SUBJECT PAGE
SUBJECT
Service
Procedures. 5D-1
Brake
Shoes - Remove and Replace . . . . 5D-1
Brake
Disc - Remove . . 5D-2
Brake
Disc -
Install
5D-2
Disc
Brake
Caliper
-
Overhaul
„ . 5D-2
Caliper
- Remove 5D-2
Caliper
- Disassemble 5D-2
Inspection
and Cleaning of
Caliper
5D-2
Caliper
- Assemble . . 5D-3
Caliper
-
Install
5D-4
Brake
Disc . . . 5D-4
Proportioning
Valve
Removal
and Installation . 5D-5
Bleeding Disc
Brakes
. . . 5D-5
Specifications 5D-5
Torque
Specifications 5D-5
Special
Tools . . . . 5D-6
SERVICE
PROCEDURES
BRAKE
SHOES-REMOVE
AND
REPLACE
The
linings should be inspected whenever the
wheels are removed for any reason (tire rotation,
etc.).
Shoe and lining should be changed if the lining
is approximately .020" or less in thickness over the
rivet
heads. A slightly tapered wear condition of the
lining
must be considered normal and is not cause
for replacement unless there is less than the mini-
mum
clearance to rivet heads.
1. Raise car and remove front wheels.
2.
Attach a
drain
hose
to caliper bleed screw and
submerge other end of
hose
in a container partially
filled
with brake fluid. When bottoming pistons, open
bleed screw to allow excess fluid to
drain.
After
pistons are bottomed, tighten bleed screw before
relieving
pressure on
shoes
and linings.
NOTE:
This
step
is necessary when replacing
worn disc brake shoes, since insertion of full
thickness lining will force the pistons back
into
caliper, displacing fluid
into
master
cylinder,
causing reservoir to
overflow.
Do not drain re-
servoir
completely
as there is the
possibility
that
air could be pumped
into
the
system,
if brake pedal
is
depressed,
which would
make
it
mandatory
to
bleed
system.
3.
Remove and discard cotter pin from inboard end
of
shoe
retaining pin and slide out retaining pin.
4. Starting with inboard
shoe
(shoe closest to car),
push
back as far away from disc as possible. Do
not pry against disc. Slip piston retainer J
22674
over caliper half, with flat side between piston and
back
of
shoe
or using a screwdriver or putty knife
between
shoe
and lining assembly and piston, press
pistons to bottom of cylinder bores. Piston springs
will
not allow pistons to remain completely bottomed.
ing
shoe
from caliper. If any difficulty is experienced
in
removing or installing shoe, rotate
shoe
in op-
posite direction. Shoes are to be replaced in axle
sets
only. Shoes are interchangeable.
NOTE:
Be sure lining material is next to disc.
5. Remove worn
shoes
and insert new replace-
ments by rotating either end out of caliper and
pull-
Fig.
5D-1
Disc Brake Assembly
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