Ducati Diavel
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Ducati Diavel Service Manual: 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.

Alternator


Note

To check the battery charging system for faults, use the dds diagnosis instrument and follow the instructions given in the paragraph, "testing the battery charging system" (sect. 6 - 11).

The absolute value of voltage measured across the terminals of two of the three yellow cables (the measured value will be the same whichever combination of cable is used) must be within the range indicated in the table below.

(Ambient temperature: 35 C - 70 C)

Important

Before testing, disconnect the alternator wiring from the electrical system when the ignition key is set to off.

Alternator


Values significantly lower than those indicated above can be due to:

In the above cases the whole alternator assembly (rotor and stator) should be renewed.

If checks have a favourable outcome, reconnect the alternator to the regulator with ignition key on off. Make sure that no cables are damaged or disconnected.

Removal of the alternator

Removal of the alternator


Disconnect the cables of the alternator-side electric system (sect. 6 -1, Routing of wiring on frame).

Remove the generator cover, the stator (a) and the rotor (b) (sect. 9 - 8, Removal of the generator cover).

Refitting the

Removal of the alternator


Removal of the alternator


Refitting the generator

Fit the rotor (b), the stator (a) and the alternator-side crankcase cover.

Connect the cables of the generator side electric system (refer to the table in chapter "routing of wiring on frame", sect. 6 - 1).

Refitting the generator


Refitting the generator


Refitting the generator


Battery
Battery safety rules Warning Before carrying out any operations on the battery, keep in mind the safety standards (sect. 1 - 3, General safety rules). When under charge, batteries produce explo ...

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 alter ...

Other materials:

Refitting the cooling system hoses and unions
Position the pump/radiator sleeve (22) and the radiator/radiator sleeve (23). Fit sleeve (23) and sleeve (22) to their corresponding fittings (n) and (o), and bring them fully home on collars (p). Note Sleeves (23) and (22) must be oriented so that the grooves (q) match the tabs (r) on fitt ...

Removing the front footrest brackets
Note The assembly of the front footrests is described only for the right one (2) but it is the same also for the left one. Place the spring (4) bringing the end (a) onto the footrest (2). Place the footrest (2) in the correct position, by inserting the end (c) of the spring (4) in the hole ...

Testing the battery charging system
Note The on-screen icons used during this procedure are explained in a table at the end of this section. You can determine the engine rpm required for generator to produce just enough current to charge battery, feed the injection ignition system and all electric items fitted to motorcycle. Wh ...

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