49
use and maintenance RS 50
CAUTION
Never push the rear brake lever after re-
moving the wheel, otherwise the caliper
pistons may go out of their seats, thus
causing the outflow of the brake fluid. In
this case consult your aprilia Official
Dealer, who will carry out the proper
maintenance operation.
NOTE Check the arrangement of the
spacer rings (8) and (9), in order to be able
to reassemble them correctly.
◆
Take the left spacer ring (8).
◆
Take the right spacer ring (9).
REASSEMBLY
◆
Moderately grease the outer seats of the
wheel hub.
CAUTION
The spacer rings have different diame-
ters: do not invert them and take care to
position them correctly.
◆
Insert the left (8) and right (9) spacer
rings in their seats on the wheel hub.
◆
Reinsert the spacer ring (13) correctly, if it
has gone out of the brake plate seat (10).
CAUTION
Before proceeding with the reassembly,
make sure that support plate (10) of the
brake caliper (11) is positioned correct-
ly; the plate slot must be inserted in the
appropriate stop pin (12) in the inner
part of the rear fork right leg. Insert the
disc in the brake caliper carefully.
◆
Position the wheel between the rear fork
rods on the support (3).
WARNING
Do not introduce your fingers between
the chain and the crown gear.
◆
Make the wheel advance and position
the drive chain (6) on the crown gear (7).
WARNING
Danger of injury.
Do not introduce your fingers to align
the holes.
◆
Move the wheel backwards, until its cen-
tral hole and the holes on the rear fork
are aligned.
◆
Rotate the support plate (10), complete
with brake caliper (11) and with fulcrum
on the stop pin (12), until it is aligned with
the holes.
◆
Correctly insert the right (4) and left (5)
chain tighteners in their seats on the fork.
◆
Uniformly apply a moderate quantity of
grease on the wheel pin (1).
◆
Introduce the wheel pin (1) completely
on the left side.
NOTE Make sure that the wheel pin (1)
is completely inserted, with the head in the
relevant seat on the left chain tightener (5).
◆
Position the washer and tighten the nut
(2) manually.
◆
Check the chain tension, see p. 50
(DRIVE CHAIN).
◆
Tighten the nut (2).
Wheel nut (2) driving torque:
80 Nm (8 kgm).
WARNING
After reassembly, push the rear brake
lever repeatedly and check the correct
functioning of the braking system.
Check the wheel centering.
Have the driving torques, centering and
balancing of the wheel checked by your
aprilia Official Dealer, in order to avoid
accidents that may be harmful for you
and/or other people.
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