Changing The Brake Fluid - APRILIA RS4 125 Service Station Manual

RS4 125
•
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.
•
Quickly press and release the rear brake lever several times and then keep it fully pressed.
•
Loosen the bleed valve 1/4 of a turn so that the brake fluid flows into the container. This will
release the tension on the brake lever and will make it reach the end of stroke.
•
Close the bleed valve before the lever reaches its end of stroke.
•
Repeat the operation until the fluid draining into the container is air-bubble free.
NOTE
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.
•
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.
•
Drain the system as for the bleeding
procedure, proceeding till reaching the
indicated level in the inspection glass.
•
Place the gasket and the cover and
tighten the two fixing screws.
WARNING
Braking system
BRAK SYS - 259