Spring; Driving Belt - PIAGGIO 500 cc Service Manual

- Check the pins and collar condition, and then reas-
semble them.
- Lubricate the driven pulley assembly with a hook-bill
greaser. Apply 10 gr. of TUTELA MRM2 grease
through one of the holes inside the bush until grease
comes out of the opposite hole.

Spring

- Measure the free length of the mobile driven half
pulley spring.
Standard length: 125.5 mm
Limit allowed after use: 120 mm
- Check the thickness of the clutch weights friction
material.
Minimum allowed thickness: 1 mm
- The weights must show no traces of grease. If neces-
sary, check the seals of the driven pulley assembly.
N.B.: During the running in phase the weights must
have a central contact surface and must not be different
one from the other to avoid the clutch jerking
- Do not open the weights with the tools to avoid the
return springs load variation.

Driving belt

- Check that the driving belt is not damaged.
- Check the belt width.
Minimum width: 25 mm
Standard width: 26.2 mm
Automatic transmission
05_030
05_031
05_034
3 - 9
3