Ducati Diavel
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Ducati Diavel Service Manual: Rectifier-regulator

The rectifier (1) is placed in the electrical components compartment.

The rectifier/regulator consists of an aluminium casing containing the diodes that rectify the current produced by the alternator. It also contains an electronic device that regulates the current supplied by the alternator in accordance with battery voltage.

If the battery is drained, the current has the value necessary to restore optimum operating conditions of the battery. In contrast, if the battery is fully charged, the current value will be lower.

Note

Control the charger current by using the dds diagnosis instrument (sect. 6 - 11, Diagnostic instruments).

Removal of the regulator


Undo the two fixing screws (1) of the voltage regulator (2) and remove it together with them.

Important

Do not disconnect the battery cables when engine is running because this would cause irreparable damage to the regulator.

Rectifier-regulator


Refitting the regulator

Position the regulator (1) on the support.

Tighten the screws (1) to a torque of 10 nm +/- 10% (sect. 3 - 3, Frame torque settings).

Rectifier-regulator


Important

Do not disconnect the battery cables when engine is running because this would cause irreparable damage to the regulator.

Rectifier-regulator


Regulator fuse

The 30 a fuse is located inside the solenoid starter in the electrical components compartment.

Rectifier-regulator


Remove the fuse cap (a) to reach it.

Rectifier-regulator


A blown fuse can be identified by breakage of the inner filament (b).

Rectifier-regulator


Important

To avoid possible short circuits, replace the fuse in key off condition.

Warning

Never use a fuse with a rating other than the specified value. Failure to observe this rule may damage the electric system or even cause fire.

Rectifier-regulator


Alternator
It is equipped with a 12 v, 430 w generator, consisting of a fixed element (stator, a) located on the generator cover and of a movable element (rotor, b) fixed to the crankshaft. Note To chec ...

Electric starting system
Note The references of the elements listed below are those of the "wiring diagram", sect. 6 -1. Electric starting system The key components of the electric starting system are a solenoid (6) and ...

Other materials:

Removal of the oil pump
Undo and remove the screws (9) and (10) securing the pump assembly. Remove the oil pump assembly (1) and extract the o-rings (2) and (4) from the crankcase half together with two locating bushes (15). ...

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 the steering tube to the steering head. Slacken the clamp screws (2) securing the steering head ...

Removing outer components
Note The following removal operations are required in order to renew and/or clean the crankcase halves. If the original crankcase halves are to be reused, then the removal of these components is not essential. Unscrew the screw (17) and remove the oil breather valve (1) with the o-rings ...

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