The Rear Brake Fluid - APRILIA RST mille Futura 2001 Service Manual

RST mille
USA
BLEEDING OPERATIONS
There are three types of bleeding procedures, to be
carried out in the order listed below:
1 BRAKE SYSTEM BLEEDING
st
NOTE
The description of the system bleeding
procedures also includes instructions on how to
determine whether it is necessary to bleed the brake
caliper and the brake master cylinder.
2 BRAKE CALIPER BLEEDING
nd
3 BRAKE MASTER CYLINDER BLEEDING
rd
WARNING
Do not reverse the above order. To do so will result in
improper bleeding of the brakes. Follow the
instructions exactly. Failure to heed this warning can
lead to failure of the brake system, with subsequent
serious accident, serious injury, or even death.
GENERAL RULES
Before proceeding, make sure that:
NOTE
Carry out the bleeding procedures with the vehicle
placed on the side stand and only on a firm, flat surface.
A the master cylinder must be higher than any line or
caliper (C);
B the fluid reservoir must be higher than the master
cylinder (A);
C the caliper bleeder nipple (1-2) is higher than the
caliper itself;
D the brake line has no bends in the shape of an
overturned "U".
NOTE
To bleed the rear brake system you must first
remove the rear brake caliper, see 7.6.2 (REMOVING
THE REAR BRAKE CALIPER).
Top up the brake fluid in the reservoir, see 2.16
(CHECKING AND TOPPING UP THE FRONT BRAKE
FLUID) and 2.17 (CHECKING AND TOPPING UP

THE REAR BRAKE FLUID).

Remove the dust cover.
Fit a piece of transparent plastic tubing over the clamp
bleeder nipples (1-2), and insert the other end into a
container.
Squeeze and release the brake lever several times,
and then hold it fully squeezed.
Loosen the bleeder nipple by 1/4 turn so that the brake
fluid flows into the container; this will eliminate tension
from the brake lever and bring it to the end of its stroke.
Tighten the bleeder nipple, squeeze the lever several
times, then hold it fully squeezed and loosen the
bleeder nipple again.
Repeat the operation until the fluid that flows into the
container is completely free of air bubbles.
NOTE
Fill the reservoir with brake fluid as needed while
bleeding the hydraulic system. Throughout this operation,
make sure brake fluid is always present in the reservoir.
Tighten the bleeder nipple and remove the tubing.
Tightening torque for bleeder nipples (1):
6.64 ftlb (9 Nm).
Tightening torque for bleeder nipple (2):
10.33 ftlb (14 Nm).
Release 00/2002 - 03
SCHEDULED MAINTENANCE AND TUNING OPERATIONS
A
C
C
B
C
A
1
1
C
1
D
C
C
2
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