Ducati Monster 696 2009 Manual page 406

section
N 4.2
Remove the secondt Woodruff key (26) located on the timing belt driveshaft.
Remove the spacer (5) and the circlip (25).
A
B
C
D
E
F
G
H
L
M
N
P
24
Engine
5
26
25
Monster 696/696+ - M.Y. 2009 - edition 00