Scheduled Maintenance; Braking System - APRILIA Scarabeo 500 Workshop Manual

GENERAL TECHNICAL INFORMATION
2.2.

SCHEDULED MAINTENANCE

2.2.1.

BRAKING SYSTEM

DANGER
It is fundamental that air is bled off the
hydraulic circuit after the brakes have been
refitted and the braking system has been
restored to its standard operating conditions,
since it would be very dangerous for the vehicle
and the rider not to do so.
NOTE This vehicle is equipped with a braking system
consisting of:
- two disc brakes at the front;
- one disc brake at the rear;
- a delay valve under the headlight.
Action on the right (front) brake lever causes pressure on the
front left brake calliper.
Action on the left (rear) brake lever causes, through the
delay valve, a pressure on the front right brake calliper and
on the rear brake calliper.
BLEEDING THE FRONT BRAKE
NOTE The following procedure applies to both front brake
callipers.
• Remove the rubber protection cap from bleed valve
(1).
• Slide a clear plastic tube onto front calliper bleed valve
(1) and set the other end of the tube in a collector tank.
•
Pull and quickly release the brake lever of the relevant
calliper a few times, then keep it pulled.
•
Loosen the bleed valve (1) by 1/4 of a turn so as the
brake fluid flows in the container, this will remove any
tension from the lever and help it travel fully home.
•
Repeat process until the fluid draining into the
container is totally clear of air bubbles.
NOTE While bleeding the hydraulic circuit, top up reservoir
with brake fluid as required. Make sure there is always some
fluid in the reservoir throughout the process.
•
Tighten the bleed valve (1) and remove the tube.
• Top up to restore correct level inside front brake fluid
reservoir.
•
Refit the rubber cap.
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SCARABEO 500