Ducati Diavel Service Manual: Adjusting 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.
Important
If the drive chain is too tight or too slack, adjust it so that tension reading will fall within specified range.
To adjust the tension remove the rear splash guard (sect. 7 - 13, Removal of the swingarm).
Slacken off the two clamp screws (1) that secure the rear wheel hub to the swingarm.
Fit the hook spanner code 88713.1038 Inserting its tooth in the eccentric hub (2).
Rotate the eccentric hub (2) to obtain the correct chain tension.
Turn counter clockwise to tighten the chain; clockwise to loosen (from chain side).
Important
An incorrectly tensioned chain will lead to accelerated wear of the transmission components.
If the screws (1) are removed, lubricate with specified grease underhead and thread, then tighten the screws (1) to the torque of 35 nm +/- 5% (sect. 3 - 3, Frame torque settings) proceeding with sequence 1-2-1.
Warning
The correct tightening of the fixing screws of the eccentric hub is essential for the safety of the rider and the passenger (sect. 3 - 3, Frame torque settings).
Refit the rear splash guard (sect. 7 - 13, Refitting the swingarm).
Adjusting the steering head bearings
Excessive handlebar play or shaking forks in the steering head indicate that
the play in the steering head bearings
requires adjustment. Proceed as follows:
loosen the clamp screw (1) that holds t ...
Checking brake pad wear and changing brake pads
Warning
Brake fluid is corrosive and will damage paintwork. Avoid contact
with eyes and skin. In the case of accidental contact,
wash the affected area thoroughly with plenty of running water.
Im ...
Other materials:
Recharging the battery
Examine the label on the battery showing the check intervals in order to
determine when to test the voltage.
Charge the battery if the open circuit voltage is lower than 12.8 V. Leaving
the battery discharged for more than one
month could damage it. Check the battery charge with a voltmete ...
Removing of the rear footrests
The removal of the rear footrests is described for the right side but it is
the same for both.
Undo the pin (13) and remove the rh rear footrest (12) from the frame.
Recover washer (8) and the o-rings (9).
If necessary remove the rubber footrest (11) of the footrest (12).
...
Removal of the clutch master cylinder assembly
Warning
The clutch master cylinder manufacturer advises against servicing of
the clutch master cylinder (1) due to the safetycritical
nature of this component. Incorrect overhaul of this component could endanger
rider safety.
Maintenance operations of the master cylinder are limited to replac ...