APRILIA SCARABEO 500 - 2008, Service Station Manual

Page: 162 / 324

Intermediate gear
- Check that the toothing is not worn.
- Check the diameter of the two bearings.
Characteristic
Gear bearing diameter
12 (0; - 0.011) mm (0.47000 (0; -0.00043) in)
Also check the diameter of the bearings on the fly-
wheel cover and on the engine crankcase.
Characteristic
Diameter of bearing on the flywheel cover
12 (+0.034; - 0.016) mm (0.47000 (+0.0013;
-0.0006) in)
Diameter of bearing on the engine crankcase
12 (+0.034; - 0.016) mm (0.47000 (+0.0013;
-0.0006) in)
NOTE
THE TORQUE LIMITER IS EQUIPPED WITH 4 GEARS THAT FUNCTION AS CLUTCH DRIVING
PLATES.
Driven plates consist of 4 Belleville springs with
grooved profiles; this assembly allows transmitting
torques lower than 10 kgm.
In case of incorrect start-up procedures, the torque
limiter prevents any kicks, resulting in inversion of
rotation direction of the crankshaft, which would
impair the engine structure.
The limiter assembly cannot be overhauled. In case of clearly visible irregularities on the toothed discs,
replace the assembly.
Refitting the free wheel
- Make sure the freewheel faying surfaces are in good condition.
- Thoroughly clean the freewheel to remove any LOCTITE left.
- Degrease the threading of the freewheel holes and the fixing screws.
- Apply the recommended product to the end of the screws.
Engine
SCARABEO 500
ENG - 162