Changing The Brake Fluid - APRILIA RS 125 Euro 4 Service Manual

RS 125 - Tuono 125 - Euro 4
CONSIDERING THE DANGER FOR VEHICLE AND RIDER, IT IS STRICTLY NECESSARY, AFTER
REFITTING BRAKES AND RESTORING THE BRAKING SYSTEM TO THE REGULAR USE CON-
DITIONS, THAT THE HYDRAULIC CIRCUIT BE AIR PURGED. THE VEHICLE MUST BE ON LEVEL
GROUND TO BE PURGED. WHILE PURGING THE HYDRAULIC SYSTEM, FILL THE RESERVOIR
WITH THE NECESSARY QUANTITY OF BRAKE FLUID. CHECK THAT, DURING THE OPERATION,
THERE IS ALWAYS BRAKE FLUID IN THE RESERVOIR.
•
Remove the rubber protection cover of
the bleed valve.
•
Insert the transparent plastic pipe in
the rear brake calliper bleed valve and
insert the other end of this pipe into a
container to collect the fluid.
•
Remove the rear brake fluid reservoir
cap.
•
Repeatedly quickly pull and release
the rear brake lever, then keep it fully
pulled.
•
Loosen the bleed valve by a 1/4 turn so
that the brake fluid flows into the con-
tainer, this will release the tension on
the brake lever and it will arrive at the
end stop.
•
Close the bleed valve before arriving at
the end of the stroke with the lever.
•
Repeat the operation until the are no
air bubbles in the fluid going into the
container.
NOTE
WHEN BLEEDING THE HYDRAULIC SYSTEM, FILL THE
TANK WITH BRAKE FLUID WHEN NECESSARY CHECK
THAT DURING THE OPERATION THERE IS ALWAYS
BRAKE FLUID.
•
Screw the bleeding valve and remove the pipe.
•
Top-up the reservoir until the correct brake fluid level is obtained.
•
Refit and lock the rear brake oil reservoir cap.
•
Refit the rubber protection cover.

Changing the brake fluid

•
To replace the brake fluid, operate the same way as for the front part and for the rear one.
•
Open the brake fluid tank, unscrewing the two screws and removing the cover and gasket.
Braking system
BRAK SYS - 303