Saab 95 1967, Service Manual

Page: 447 / 610

FRICTION PADS
GENERAL
As the disc brakes are selfadiusting, it is not possible to
decide by the length of the pedal stroke wether the brake
linings are worn. At intervals not exceeding 6 000 miles
(10 000 km) the wheels shall be removed and the thick-
ness of the brake linings checked. The friction pads must
be removed when the thickness of the lining is less than
0.06 in. (1.5 mm).
RE?LACEMENT
1. Jack up the car and remove the wheel.
2, Remove the cotter pins, and the spring holding the
friction pads. Remove the friction pads.
3. Clean thoroughly the uncovered part of the piston,
and make sure that there is no rust or dirt on the
friction pads surfaces which contact the bracket
and the yoke.
NOTE
When cleaning, use only brake fluid or methylated
spirit.
4.
Drive the piston back into the brake housing with
the aid of screw vise 78 GO 430.
PRESSING IN THE BRAKE PISTON
Tool 78 60 430
NOTE
When the brake piston is forced back into the cyl-
inder, the brake fluid level in the reservoir will rise
appreciably, and it may then be necessary to drain
off superfluous fluid.
5.
Clean the brake disc thoroughly with trichlore<
thylene.
5- Turn the movable brake part towards the'wheel, and
fit the outer friction pad. Make sure that it movesd
freely in its position in the yoke. Possrbly, protru
ing parts will have to be trimmed with a file.
IMPORTANT
If used friction pads are refitted, they mUSt be
placed in their original locations.
7. Turn the movable brake part backwards as far as
possible.
8. Fit damping shims to the bac
and make sure that the shim does not exce
contours of the pressure plate.
9. Be sure that the damping shim is fitted with the two
recesses directed downwards, in such a way that
they are centred on the ends of the piston recess.
Fit the inner friction pad. Also make sure that the
recess in the piston is directed downwards. The
b brake piston of the latest design has a face ground
contact surface facing the friction pad. In this con-
nection the damping shim has been altered in such
a way that the piston has the corresponding fit-up
facing the friction pad.
10. Fit the spring. The recess in the spring shall lie as
near as possible to the outer friction pad. Fit new
cotter pins, and lock them.
Fit the upper cotter pin first. When fitting the low-
er cotter pin, press the spring upwards with the aid
of a screwdriver.
ed the
INSTALLATION
OF BRAKE PADS
NOTE
Fit a new spring, if the old one is worn out.
11.
Pump repeatedly with the brake pedal in order for
the friction pads to be adjusted in towards the brake
517—1
Fur 1977