CITROËN GSA Repair Manual page 173

NOTE : This operation must be carried outarn;lpressure
so as to avoid emulsification of the fluid, and consequent
possible formation of air pockets in the circuit.
a ) With the engine stopped, undo the pressure regula-
tor relief screw.
b) Connect right brake unit bleed screw ( 1 ) to the
reservoir, using a length of transparent tube.
2. Bleed the brakes :
a ) Start the engine.
b ) Undo the pressure regulator relief screw. and allow
the fluid to flow until no air bubbles are observed.
At this moment do up bleed screw ( 1 ).
c) Release the brake pedal. and disconnect the bleed
tube.
II. BLEEDING THE REAR BRAKES
The rear brakes must be bled under pressure.
free.
Connect a length of tra'nsparent
Start the engine.
Using a jack, raise one of the rear suspension arms(
rear correcfor IS then in the a mler B position).
until no more bubbles are observed
Do up the bleed straw.
Ill. ADJUSTMENT OF BRAKE PEDAL
CLEARANCE
1. Adjust pedal clearance :
Bend the metal at < < a n. to obtain clearance J between
pedal and regulator:
J = 0.1 to 0.5 mm
bleed tube to each bleed
the
IV. ADJUSTMENT OF STOP LIGHT CONTACTOR
1. Check brake pedal clearance adjustment ( see preced-
ing paragraph).
2. Adjust stoplamp switch ( 2 ) :
The stop lights should come on as soon as the pedal
comes into contact with the brake valve.
Bend stoplamp switch support bracket to achieve this
condition.
V. TESTING AND ADJUSTMENT OF THE HAND-
BRAKE
1. Raise and chock the front of the vehicle.
Release the handbrake control fully.
Remove the spare wheel.
2. Adjust the cams :
Check that levers( 7 ) are in contact with the brake unit.
if necessary undoing handbrake
nut ( 3 ) and nut ( 4 ).
Turn adjustment screw ( 5 ), so as to obtain a setting at
the limit of brushing contact.
out this adjustment at the point of maximum run-
( Turn by rotating the corresponding wheel 1.
3. Adjust the handbrake control cables :
On each brake unit.
Check that sleeve end fitting ( 6 ), and the sleeve are !n
place.
Advance cable adjustment nut ( 4 ) until it is in contact
with lever ( 7 ) ( pull on the cable to facilitate this
operation ).
Check that the free lengths of the threaded end fittings
are identical on each side ( to within 5 mm).
Tighten lock-nuts ( 3 ) to 1.5 m.daN
4. Test the handbrake :
Operate the handbrake control a number of times.
checking that the setting does not vary. and that the
locking system functions correctly.
Replace the spare wheel.
Lower the vehicle to the ground.
cable adjustment lock-