WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Lubricating Input Shaft
Courtesy of VOLVO CARS OF NORTH AMERICA.
Spray the input shaft with lubricant (part no. 30759651).
NOTE:
The layer of lubricant must be very thin.
Spray from the side while turning the input shaft.