Mechanical Component Controls; Brake Mechanism: Precautions For The Repair - Renault Duster 2007 Manual

MECHANICAL COMPONENT CONTROLS

Brake mechanism: Precautions for the repair

I - SAFETY
1 - Advice to be followed before any operation
For an operation requiring the use of a lift, follow the
safety advice (see Vehicle: Towing and lifting) (02A,
Lifting equipment).
2 - Instructions to be followed during the operation
Using a mixture of two incompatible brake fluids in the
brake circuit may give rise to:
- serious risk of leakage due mainly to deterioration of
the cups,
- degradation of the ESP system.
To avoid such risks, only ever use brake fluids which
comply with the RENAULT standard (see Vehicle:
Parts and consumables for the repair) (04B, Con-
sumables - Products).
WARNING
Switch off the vehicle ignition so as not to activate
the hydraulic unit solenoid valves when bleeding the
brake circuit.
Reminder:
- The pipes between the master cylinder, the callipers,
and the hydraulic unit are connected using threaded
unions with a metric thread.
- Therefore, only parts specified in the Parts Catalogue
for this vehicle should be used.
IMPORTANT
To ensure that the ABS and ESP systems operate
correctly, check that the underbody brake pipes are
clipped in place and are not crossed.
IMPORTANT
To avoid any accident, bring the pistons, brake pads
and brake discs into contact by depressing the
brake pad several times.
If, during work on the brake system, any damage on
any part is observed, it must be repaired before driving
the vehicle again.
II - CLEANLINESS
1 - Advice to be followed before any operation
Protect any bodywork components that risk being dam-
aged by brake fluid with a cover.
2 - Instructions to be followed during the operation
To avoid contaminating the brake circuit, do not allow
the brake circuit components to drop on the ground.
Clean around the braking system with BRAKE
CLEANER (see Vehicle: Parts and consumables
for the repair) (04B, Consumables - Products).
WARNING
Prepare for the flow of fluid, and protect the sur-
rounding components.
III - GENERAL RECOMMENDATIONS
1 - Master cylinder - brake servo
Always replace the master cylinder seals.
Check that the brake servo seal is in place. Replace
the seal if it is damaged.
Always replace the master cylinder - brake servo as-
sembly when the master cylinder leaks into the brake
servo. The brake servo becomes unusable when the
rubber diaphragm is contaminated with brake fluid.
IMPORTANT
To avoid breaking the connection between the
brake servo pushrod and the brake pedal, check
that the safety clevis pin is locked onto the brake
servo pushrod by tilting it from the top downwards.
2 - Brake hose
WARNING
In order not to damage the brake hose:
- do not tension the hose,
- do not twist the hose,
- check that there is no contact with the surrounding
components.
37A-1
37A