Ducati Monster 796 Workshop Manual page 538

Cylinder head assemblies: timing belt covers/timing system
Then fit the outer pulley (8), outer spacer (7) and ring nut (6).
Important
To prevent the nuts working loose and consequent serious engine damage, always use new self-locking nuts on all the
timing belt pulleys on reassembly.
Note
Apply a film of grease to the thread and the underside of the ring nut (6).
Use the wrench of tool 88700.5644 to restrain the pulleys against rotation and, using the bush of the tool in a torque
wrench, tighten the self-locking nut to a torque of 71 Nm (Min. 64 Nm - Max. 78 Nm) (Sect. 3 - 3,
settings).
Refitting the timing belt tensioner pulleys
If it was disassembled, apply the recommended threadlocker to the fixed tensioner (11) and tighten it to a torque of 20
Nm (Min. 18 Nm - Max. 22 Nm) (Sect. 3 - 3, Engine torque settings).
Engine torque