Removing The Rear Sprocket - APRILIA TUONO 1000 Workshop Manual

CYCLE PARTS
5.7.10.

REMOVING THE REAR SPROCKET

•
Using a setscrew wrench (1), lock threaded pin rotation
(2), loosen and remove the self-locking nut (3) and the
threaded pin (2).
WARNING
Replace the self-locking nuts (3) every three
times the rear sprocket is removed.
Replace the self-locking nuts (3) with nuts of
the same type.
•
Remove the rear sprocket holder (4).
•
Clean the rear sprocket (5) and the holder (4) with
clean detergent.
Reassembly:
•
Fit the five threaded pins (2) on the rear sprocket (5).
•
Assemble the rear sprocket holder and the rear
sprocket complete with threaded pins.
•
Manually tighten the self-locking nuts (3).
WARNING
Do not fit the final drive unit (6) on the wheel to
tighten the self-locking nuts.
WARNING
To protect the rear sprocket, fit (wooden or
aluminium) protections on the vice grips.
Clamp only the rear sprocket in the vice; do not
clamp any other components of the final drive
group.
•
Clamp the rear sprocket in the vice.
NOTE To avoid possible deformation and/or imperfect
mating, tighten according to the instructions below:
•
Using a setscrew wrench (1) lock the rotation of the
threaded pin (2) and apply half the specified torque;
tighten the elements opposite each other in the
following order: (A) (B) (C) (D) (E).
•
Repeat the above procedure applying the specified
tightening torque.
NOTE In this way the stress applied by the fixing elements
will be evenly distributed over the joint surface.
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TUONO 1000