Ducati SUPERBIKE 848 MY 2008 Manual page 527

Clutch assembly: clutch
Overhaul of the clutch plates
The clutch plates must not show any signs of blackening, grooves or deformation.
Measure the thickness of the friction plates. It should not be less than 2.6 mm.
Important
The total thickness of the clutch plate pack must not be less than 46.1 mm.
Place the plate on a flat surface and check the amount of deformation with a feeler gauge.
Max flatness error: 0.2 mm.
Overhaul of the pressure plate
Check the condition of bearing (5): renew the bearing if the play is excessive.
Check the contact surface of last plain steel plate. If extremely scored, polish it in the same manner as described
previously for the cylinder head surface (Sect. N 4.5,
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Overhaul of cylinder head components).