APRILIA MSS Mana GT ABS Service Station Manual page 264

Engine
Inspecting the hub shaft
- Check the two shafts for wear or distortions on
the toothed surfaces, on the bearing housings and
the oil seal positions.
- If faults are found, replace the damaged parts.
Characteristic
Bearing diameter for shaft driven pulley:
A= Ø30 -0.01 -0.02 mm
B= Ø20 -0.01 -0.02 mm
Diameter for pinion unit shaft:
C= Ø20 -0.01 -0.02 mm
D= Ø30 -0.013 -0.026 mm
Refitting the driven pulley shaft bearing
- Heat up the crankcase using the thermal gun.
- Insert the driven pulley shaft bearing up to the stop against the bottom of the seat with the specific
tool.
Specific tooling
020376Y Adapter handle
020483Y 30 mm guide
020655Y 62x68 mm Adaptor
ENG - 264
MSS Mana GT ABS