APRILIA SCARABEO 500 2008 Service Station Manual page 129

SCARABEO 500
Removing the driving pulley
- Using a 27-mm spanner, turn the pulley central
nut to align the central internal holes horizontally
and to fit the specific tool.
Specific tooling
020474Y Driving pulley lock wrench
- First fit the 2 retainer clamps of the specific tool
into the pulley so that the spline is fully engaged.
- Then, fit the tool so as to insert the stud bolts on
the clamp into the holes located in the tool.
- Manually tighten both tool fixing nuts.
- Unscrew the central nut.
- Remove both the belleville and the plain washer.
- Remove the fixed driving half-pulley.
- Remove the connecting washer with the bushing.
- Move the belt downwards.
- Suitably support the roller contrast and slide off
the movable driving half-pulley with the relevant
bushing and the rear washer, being careful not to
make the rollers come out.
Inspecting the rollers case
- Check that internal bushings shown in the figure are not abnormally worn and measure their inside
diameter.
CAUTION
DO NOT LUBRICATE OR CLEAN BUSHINGS
Characteristic
Max. diameter allowed:
30.12 mm
Standard diameter:
30.021 mm
Engine
ENG - 129