PIAGGIO 500 cc Service Manual page 111

Driving shaft crankcase
- Grease and assemble a new oil seal by means of the
specific tool. Put it at 0.5 mm from the crankcase
surface.
Warning
- The oil seal wrong position will compro-
mise the lubrication oil circulation.
Specific tool:
Adapter 52x55
Punch handle
- Assemble the gasket on the half crankcase flywheel
side
- Lubricate the main bearing brass on the half crank-
case transmission side.
- Mate the 2 half crankcases taking care not to
damage the half crankcase brass transmission
side, with the driving shaft threaded tang.
- Insert, without locking it, the engine mount setscrew
on the half crankcase flywheel side.
- Fit the 14 fixing screws, using the shorter screw «A»
and the longer screws «B», as shown in the figure.
- Fully screw the screws and then tighten them to the
prescribed torque.
- Check that the driving shaft turns freely.
N.B.: Remove any part in excess from the crankcase
coupling gasket on the cylinder surface in order to
improve the sealing.
Tightening torque:
Crankcase coupling screws: 11 - 13 N·m
8 - 18
020360Y
020376Y
05_287
05_288
05_289