VESPA 633844 IT Service Manual page 98

Engine
Plastic roller
- Check that the roller does not show signs of wear
and that it turns freely.
- Remove the special clamping screws as indica-
ted in the photograph
- Check the outer diameter of the roller does not
have defects that could jeopardise belt functioning
- For refitting, place the roller with the belt contain-
ment edge on the engine crankcase side
- Tighten the wrench to the prescribed torque.
Locking torques (N*m)
Anti-flapping roller 12 - 16
Removing the driven pulley
- Remove the clutch bell housing and the driven
pulley assembly.
N.B.
THE UNIT CAN ALSO BE REMOVED WITH THE
DRIVING PULLEY MOUNTED.
ENG - 4
Vespa GTV 250 i.e.