APRILIA LEONARDO 250 Workshop Manual page 45

PERIODIC MAINTENANCE
- Front brake pad (9).
- Rear brake pad (10).
BLEEDING THE BRAKING SYSTEM
The air, when present in the hydraulic circuit, absorbs most
of the pressure exerted by the brake pump and therefore re-
duces the effectiveness of the calliper action during the brak-
ing. The presence of air is signalled by the elasticity of the
brake control and by reduced braking capacity.
CAUTION
Since these conditions would be extremely danger-
ous for the vehicle and for the pilot, it is absolutely
important to bleed the hydraulic circuit after the re-
assembly of the brakes and the restoration of the
normal conditions of use.
•
Remove pump cover (2).
•
Unscrew the two screws (3) of the brake fluid tank (4).
•
Remove the cover (5).
IMPORTANT It is advisable to keep the fluid in the tank par-
allel to the ground (horizontally), in order not to spill it while
topping up.
•
Remove the gasket (6).
•
Make sure that the fluid covers the glass (1) completely
and top up if necessary.
•
Remove the protection cap (11) of the air valve.
•
Connect a transparent pipe (11) to the air valve (12).
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