PIAGGIO 633823 Service Station Manual page 94

Engine
- Support the pulley properly using the bell as
shown in the figure.
Specific tooling
001467Y035 Belle for OD 47-mm bearings
- Remove the roller bearing using the modular punch.
Specific tooling
020376Y Adaptor handle
020456Y Ø 24 mm adaptor
020363Y 20 mm guide
Inspecting the driven fixed half-pulley
Version 250
- Measure the outer diameter of the pulley bushing.
- Check the contact surface with the belt to make
sure there are no flaws.
- Check the riveted joints are functional.
- Check the evenness of the belt contact surface.
Characteristic
Half-pulley minimum diameter
Minimum admissible diameter Ø 40.96 mm
Half-pulley standard diameter
Standard diameter: Ø 40.985 mm
Wear limit
0.3 mm
ENG - 8
MP3 250 i.e.