Removing The Rear Brake Disc; Removing The Rear Brake Master Cylinder - APRILIA RS 50 Workshop Manual

Body work

REMOVING THE REAR BRAKE DISC

Read carefully (PRECAUTIONS AND GENERAL
INFORMATION).
Remove the rear wheel (REMOVING THE COM-
PLETE REAR WHEEL).
NOTE
It is helpful to use an impact wrench to loosen
the bolts (1), since they are locked in place using
®
LOCTITE .
Unscrew and remove the 5 brake disc bolts (1).
WARNING
When refitting, apply LOCTITE
bolt threads.
NOTE
When refitting, hand-tighten the bolts and
then torque them in diagonal order, i.e.: A-B-C-D-E.
Remove the brake disc (2).
CHECKING THE BRAKE DISC
NOTE
Checking the brake disc for warpage must be
done with the brake discs installed on the wheel.
Using a dial gauge, check the maximum misalignment
of the brake disc. If it exceeds the limits, it must be
renewed (see REMOVING THE BRAKE DISC).
Check the wear of the disc by measuring the minimum
thickness at various points around the disc with a
micrometer. If the disc is less than the specified
minimum thickness at any point, renew the disc (see
REMOVING THE BRAKE DISC).
Minimum disc thickness: 3.5 mm (0.14 in).
REMOVING THE REAR BRAKE MASTER
CYLINDER
Read carefully (PRECAUTIONS AND GENERAL
INFORMATION).
Position the motorcycle on the stand.
Drain the brake fluid, as described in (CHANGING
THE REAR BRAKE FLUID).
When the reservoir is empty, unscrew and remove the
brake light switch (1), move the tube (2) and remove
the seal washers (3).
ch. 7
®
to the brake disc
Release 00
1
A
C
E
3
2001-03
RS 50
1
2
2
D
B
7
1
2
7-65