A
B
C
D
E
F
G
H
L
M
N
P
section
N 7.2
1551098/1098S - M.Y. 2007 - edition 00
Engine
Overhaul of the gearbox
Check the condition of the front coupling dogs of the gears. They must be in perfect condition and with no sign of wear on the
edges of the teeth.
The idler gears must rotate freely on their shafts.
When refitting, make sure the circlips are correctly positioned.
Check the needle roller bearings for wear.
The threads and splines of the shafts must be in perfect condition.
At each overhaul, check the condition of the needle roller cage (13) and the oil seal (14) located on the end of the gearbox input
shaft: remove them if necessary using a suitable puller and renew them.
Also check that the component parts of the gear selector mechanism are in good condition.
Engage the gears and check that the gearchange mechanism does not stick (selector fork - gear groove, and fork pin -
desmodromic drum groove) due to incorrect end float. Restore the correct endfloat by shimming the gearbox shafts and the
selector drum with suitable shims.
For the total gearbox shaft and selector drum endfloat values, refer to Sect. C 1.1.
13
14
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