Apply the specified grease on nut (7) mating surface and on primary shaft thread, then insert nut driving it
fully home by hand inside primary shaft.
Lock clutch housing with tool (T) no. 88713.2556, so as to hold it when tightening nut (7).
Tighten nut (7) to a torque of 190 Nm (Min. 180 Nm - Max. 200 Nm).
Remove tool (T) no. 88713.2556.