Cadillac 60 Series 1963 Shop Manual page 176

BRAKES
7. Adjust parking brake linkage as described in
Note 2.
8. Check operation of automatic release.
14. Parking Brake Diaphragm
Removal and Installation
a. Removal
1. Remove parking brake assembly as described
in Note 13.
2. Drill out two rivets retaining diaphragm on
60 and 62 series cars. On Seventy-Five series
cars and commercial chassis it is only necessary
to straighten retaining tangs to remove diaphragm
3. Drill out or grind off rivet that connects link
to manual release lever and remove diaphragm
on 60 and 62 series cars. On Seventy-Five series
cars and commercial chassis, disconnect link
from manual release lever.
b. Installation
1. On 60 and 62 series cars, position diaphragm
on parking brake assembly and secure with two
rivets. Secure link to manual release lever with
special shoulder screw and nut.
2. On Seventy-Five series cars and commercial
chassis, position diaphragm on parking brake
assembly, and secure by bending diaphragm r e -
taining tangs. Connect link to manual release
lever.
3. Install parking brake assembly as described
in Note 13.
4. Test automatic lock and release operations
with engine running in "neutral" and " d r i v e "
range.
NOTE: Parking brake should release in any
drive range with engine running. Parking brake
should remain engaged in "neutral" or " p a r k "
with engine running.
15. Power Brake Unit
Removal and Installation
a Removal
1. Disconnect hydraulic brake lines from mas-
ter cylinder on power brake unit, Fig. 8-10. Cap
line fittings to prevent dirt from entering brake
lines.
2. Disconnect vacuum hose from vacuum check
valve on power brake unit.
3. Remove cotter pin, washer, and spring
Fig. 8-10 Power Brake Unit Installed
spacer that attach power unit push rod to brake
pedal relay lever.
4. Remove four retaining nuts that hold power
unit to cowl and remove power brake unit.
b. Installation
1. Position power brake unit on cowl and install
four retaining nuts loosely.
2. Attach power unit push rod to brake pedal
arm pin with spring spacer, washer, and cotter
pin.
3. Tighten four brake unit retaining nuts.
4. Connect vacuum hose to vacuum check valve
on power brake unit, Fig. 8-10.
5. Connect hydraulic brake lines to master
cylinder. Front wheel brake line goes to fitting
nearest cowl.
16. Bendix Power Brake Unit
Disassembly, Cleaning, Inspection
and Assembly
a. Disassembly
1. Scribe a line on top center of front and rear
shells of power unit in line with master cylinder
filler caps.
2. Place assembly in bench vise with rear shell
up and tighten vise jaws securely on master cylin-
der, being careful not to crack casting.
3. To facilitate disassembly, connect vacuum
pump to check valve on front shell of power unit
and operate pump to obtain at least 15 inches
vacuum.
NOTE: If vacuum pump is not available, a
length of hose may be connected to car intake
manifold with engine operating at idle.