65
use and maintenance
MX 125
WARNING
The vehicle may fall down.
Provide for balancing the vehicle, in
order to prevent it from falling down.
Make sure that the vehicle is stable.
◆
Place a support (5) under the tyre, in such
a way as to keep the wheel in the correct
position after releasing it.
CAUTION
Lower the drive chain (6) outside the
crown gear (7).
WARNING
Do not introduce your fingers between
the chain and the crown gear.
◆
Move the wheel completely forward;
release the drive chain from above,
rotating the rear wheel anticlockwise.
CAUTION
Upon reassembly, introduce the drive
chain from below, rotating the rear
wheel in the travelling direction.
◆
Unscrew and remove the wheel nut (3)
and take the washer (8).
CAUTION
To facilitate the extraction of the wheel
pin, slightly raise the wheel.
◆
Hold the rear wheel and manually
withdraw the wheel pin (9).
CAUTION
The left (10) and right spacer rings (11)
remain positioned in the respective
seats on the wheel; if they should come
off, reposition them correctly (see
REASSEMBLY).
◆
Withdraw the wheel from the rear fork
from behind, carefully withdrawing the
disc from the brake caliper.
WARNING
Never pull the rear brake lever after
removing the wheel, otherwise the
caliper piston may go out of its seat,
thus causing the outflow of the brake
fluid. In this case consult your
aprilia
Official Dealer, who will carry out the
proper maintenance operation.
CAUTION
Left (10) and right (11) spacers
remain
into their seats on the wheels; if they
come off, reposition them correctly
(see
REASSEMBLY).
◆
Take the left spacer ring (10).
◆
Take the right spacer ring (11).
Upon reassembly:
◆
Moderately grease the outer seats of the
wheel hub.
◆
Fit the spacer rings (10) (11) with the
longer diameter towards the outside of
the vehicle.
◆
Uniformly apply a moderate quantity of
grease on the wheel pin.
WARNING
After reassembly, pull 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.
Check chain tension.
11
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MX125_UK.book Page 65 Wednesday, October 15, 2003 11:24 AM
