Ducati Diavel Workshop Manual page 752

Gearbox assembly: gearchange mechanism
Grease and then fit the ball (8), spring (7), and seal (6) to the gear interlock plunger (5).
Lock the plunger (5) to a torque of 30 Nm (Min. 27 Nm - Max. 33 Nm) (Sect. 3 - 3,
Operations
Refit the primary gear
Refit the complete clutch
assembly
Refit the clutch cover
Refill the system with engine oil 4 - 3,
Section reference
9 - 6.3, Refitting the primary drive
gears and checking backlash
9 - 6.1, Reassembling the clutch
9 - 6.2, Refitting the clutch-side
crankcase cover
Changing the engine oil and
filter cartridge
Engine torque settings).