Ducati Diavel Workshop Manual page 622

Cooling system: coolant expansion tank
Note
The hose (20) side to be inserted in the fitting (H) features the white padprinting (N).
Important
Once the assembly is completed, the hose (20) must be in contact with the internal surface of the hose clamp (1) as
indicated.
Note
In case of difficulties during insertion of the hose (20) into the fitting (H) it is recommended to apply lubricant suitable for
rubber to the fitting.
Block the hose (20) by means of the clip (19), by orienting it as shown.
Insert the spacer with the collar (10) into the hole of the rubber mounting (11).
Fit the rubber mounting (11) as shown, by starting the screw (9).
Tighten the screw (9) to a torque of 8 Nm ± 10% (Sect. 3 - 3, Frame torque settings).