APRILIA RS 50 - 1999 Manual page 65

NOTE
Observe the arrangement of the
spacer rings (8) and (9) in order to be able
to reassemble them correctly.
Remove the left spacer ring (8).
Remove the right spacer ring (9).
REASSEMBLY
Apply a thin film of grease to the outer
seals of the rear wheel hub.
 
CAUTION
The spacer rings have different diame-
ters: do not mix them up and take care
to position them correctly.
Insert the left (8) and right (9) spacer
rings in their seals on the wheel hub.
Install the spacer ring (13) in its correct
position, if it has fallen out of the torque
 
plate seat (10).
CAUTION
Before proceeding with the reassembly,
make sure that the torque plate (10) of
the brake caliper (11) is positioned cor-
rectly; the plate slot must be inserted in
the appropriate stop pin (12) in the inner
part of the right side of the swinging
arm. Insert the disc in the brake caliper
carefully.
Position the wheel centrally in the swing-
 
ing arm.
WARNING
Danger of injury.
Keep your fingers well away from the
chain and sprocket. You could easily
lose a finger if it becomes pinched be-
tween these two parts.
Move the wheel forward as far as possi-
ble in order to install the chain on the
 
sprocket.
WARNING
Danger of injury.
Do not attempt to align the rear wheel and
the swinging arm using your fingers.
Pull the rear wheel backwards until the
bearing holes are lined up with the holes
in the swinging arm.
Rotate the torque plate (10), complete with
brake caliper (11), with the stop pin (12) in
proper position until it is appropriately
aligned with the holes in the swing arm.
Install the right (4) and left (5) chain tight-
eners in their seats on the swing arm.
Lightly grease the outside of the axle (1).
Install the axle (1) completely through
the wheel from the left side.
NOTE
Ensure that the axle (1) is pushed
all the way home with the head in the ap-
propriate seat on the left chain tightener.
Install the washer and tighten the nut (2)
finger tight.
Check the chain tension, see p. 66
(DRIVE CHAIN).
Tighten the nut (2).
Wheel nut (2) tightening torque:
 
57.86 ftlb (80 Nm).
WARNING
After servicing the brakes, always
check them for function. If the stroke of
the lever or pedal is excessive, or if you
detect that the effectiveness of the
brakes is reduced in any way, have your
motorcycle serviced by your Local
Delear. It may be necessary to
have your dealer bleed the system, or
there may be some other problem with
the brake system.
Never ride your motorcycle in traffic im-
mediately after servicing the brakes.
Always apply the brake pedal or lever
several times before riding your motorcy-
cle. Then, try your motorcycle in a park-
ing lot or other safe area with little traffic
to ensure that the brakes are working
properly. Failure to observe this warning
can lead to a serious accident with subse-
quent serious injury or death.
Check the wheel centering.
Have the tightening torques, centering
and balancing of the wheel checked by
your Local Delear. These are
critical safety operations, and failure to
observe this warning could lead to an
upset with subsequent serious injury or
death.
use and maintenance RS 50
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65