Installing The Rear Wheel - APRILIA SX 125 Service Station Manual

RX SX 125
Insert the anti-vibration buffer in the wheel hub.
Fit the entire final transmission unit on the wheel, manually rotate the crown gear to right and left and
check the clearance between the anti-vibration buffer and the hub. Replace the anti-vibration buffer if
excessive clearance is found.
CROWN GEAR
Check the toothing of the crown and the pinion. If excessive wear is found, replace: the crown, the pinion
and the drive chain.
CAUTION
REPLACE ALL THREE PARTS TO PREVENT EARLY WEAR OF NEW COMPONENTS.

Installing the rear wheel

•
Position the rear wheel.
•
Position the chain.
•
Working on both sides, insert the centring shim washers.
•
Working from the left side, insert the wheel axle.
CAUTION
DO NOT INVERT THE RIGHT AND THE LEFT CHAIN TENSIONERS.
•
Working on the right side, position the washer and screw but do not tighten the wheel axle
fixing nut.
•
Adjust the chain tension operating the set screws.
CAUTION
AFTER REFITTING, OPERATE THE REAR BRAKE LEVER REPEATEDLY AND CHECK THAT THE
BRAKING SYSTEM OPERATES CORRECTLY.
CAUTION
CHECK THAT THE WHEEL IS CENTRED.
•
Tighten the wheel axle fixing nut.
See also
Adjusting
Suspensions
SUSP - 165