Reassembly is a reversal of the removal procedure: in particular apply prescribed threadlocker to screws (2) and tighten them to a torque of 20 nm +/- 10% (sect. 3 - 3, Frame torque settings).
If the hands free button has been previously removed, when refitting it insert the spring (6) on pin (a) of button (5).
Introduce button (5) with spring (6) into the opening on the frame (7).
Lock the button (5) by means of a pin (8), by inserting it until reaching the surface (b) of the frame (7).
Note
Upon insertion of the pin (8), keep button (5) pressed in the direction indicated by the yellow arrow.
Warning
The opening (c) of the pin (8) must be on the opposite side of the of the surface touched by the button (5) when sliding (as shown in the figure).

To reposition the wiring refer to sect. 6 - 1, Routing of wiring on frame.

Removing the hands free
Gearchange mechanismAdjusting the chain tension
Make the rear wheel turn until you find the position where chain is tightest.
Set the vehicle on the side stand. Push down
the chain at the point of measurement and release. Measure the distance between
the "aperture" upper profile and pin
centre.
The read distance must be: 9 to 11 mm.
...
Accelerator position sensor (throttle grip)
Introduction
An accelerator position sensor (aps) is mounted on the throttle body of the
diavel, which measures the degree of aperture
of the throttle grip.
The throttle grip is connected to the sensor via two metal cables
The sensor transmits information to the ecu relative to the "torque ...
Checking and topping up coolant level
Check coolant level in the expansion tank on the right side of
the vehicle.
Steer the handlebar completely to the left and check that the
level is between the min and max marks on the side of the
expansion reservoir.
Top up if the level is below the min mark.
Unscrew the filler plug (1) ...