Beta Motorcycles X Trainer 300 2T 2015, Руководство по ремонту, Страница: 70 / 117

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3.8.4 Clutch disc check
The clutch discs divide in driving and driven:
eight driving discs and seven driven discs.
The driving discs have cork inserts on both sides
which wear out due to the driven discs sliding
on them.
Make sure that the thickness between the two
inserts positioned on the opposite faces of each
driving disc is not below the minimum value
fixed at:
minimum distance between two opposite
inserts: 2,8mm
The other value that needs to be checked is the
thickness of the teeth of each driving disc. They
must not be less than the minimum value fixed
at:
minimum driving disc tooth thickness:
13,3mm
Check the state of use of the silent-blocks as fol-
lows. Clamp gear B using protective elements
and impose a rotation to the clutch case. If there
is play between the case and the gear unit, re-
place the silent-block.
Check the state of use of the internal centre
bearing
1
which must have no traces of meshing
or abnormal wear.
Check the state of use of the roller bearing 2 . If it
is worn, have it replaced.
Internal centre bearing and roller bearing of clutch case.
2
1
Minimum distance between two opposite inserts.
Minimum driving disc tooth thickness.