The operation of the clutch release differs
according to the version.The versions without Selespeed have a coaxial,
hydraulically operated device known as the CSC system.On versions fitted with a Selespeed gearbox
the clutch release takes place through conventional linkage controlled
by the electro-hydraulic unit [ Characteristic of working principle 2127A hydraulic transmission
external linkage] fitted on the gearbox
casing which also controls the gear selection and engagement.