Betamotor ALP 4.0 Mode D'emploi page 139

Replacing the front sprocket
• Loosen the rear wheel.
• Loosen the chain adjusters.
• Move the wheel forward to the end of its
travel to allow the slackening of the chain.
•Remove the two chain guard fixing
screws F.
• Insert the first gear and remove the seeger
G of the pinion clamping.
• It is necessary to move the tires towards
the front of the vehicle, so as to loosen
tension on the chain.
• Replace the sprocket.
• To reassemble, follow the same proce-
dure in reverse order.
Substituting the crown
• For crown substitution, remove the rear
tire, by first loosening the right and left
regulators A and B, and subsequently
unscrewing the tire axis nut C.
• It is necessary to move the tires towards
the rear end of the vehicle, so as to loosen
tension on the chain.
• Unscrew the six crown clamping screws D.
• For reassembling, proceed in the inverse
manner, using blockage-threads on the
six clamping screws.
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