30A-4
GENERAL INFORMATION
Braking circuit: Bleed
30A
This procedure must be applied after one of the fol-
lowing components has been removed or replaced:
-the master cylinder,
-the brake fluid,
-the hydraulic unit,
-a rigid pipe,
-a hose,
-the reservoir,
-a calliper.aUse locally produced containers to collect the used
brake fluid.
Front and rear callipers:
-2 washer fluid containers (1) (1 litre),
-4 mm diameter transparent pipes (2) ,
-4 pipettes (3) ,
-2 T-unions (4) .
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aSwitch off the vehicle ignition. Equipment required
pedal press
brake circuit bleeding device
IMPORTANT
To avoid all risk of damage to the systems, apply
the safety and cleanliness instructions and opera-
tion recommendations before carrying out any
repair (see 30A, General information, Brake cir-
cuit: Precautions for the repair, page 30A-2) .
WARNING
Switch off the vehicle ignition so as not to activate
the hydraulic unit solenoid valves when bleeding the
brake circuit.
WARNING
The level must be between the « MIN » and
« MAX » markings on the reservoir.
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Note:
The new hydraulic unit is pre-filled.
When working on one of the following compo-
nents , position a pedal press to limit the outflow
of brake fluid and prevent any air from entering
the master cylinder and the circuits downstream
of the master cylinder:
-hydraulic unit,
-pipes between the hydraulic unit and brake cal-
lipers,
-brake hoses,
-brake calliper.
Remove the pedal press before carrying out the
braking system bleeding procedure.
