Ducati SUPERBIKE 848 MY 2008 Manual page 440

Cooling system: water pump
Working from the impeller side, use a suitable drift to press on the inner race of end bearing (5) until it can be extracted from the cover.
Use the same technique to remove the other bearing (6).
Working from the inside of the cover, remove the seat (8) of the mechanical seal (9).
Remove the inner spacer (7).
Check the condition of the components of the mechanical seal: there should be no signs of deformation, cracking, or
excessive wear. In the case of damage, both components must be renewed.
Refitting the water pump
Clean the seat in the cover, any parts you intend to reuse, and the impeller shaft. Lubricate with engine oil and refit
as follows.
Using drift part no. 88713.0869 fit the new seal (9) on the impeller shaft.
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