TM 10-3930-659-20 5-36. FAN REPLACEMENT (Con't). b. INSTALLATION Install fan hub (2) and fan (3) on water pump pulley (1) with six washers (4) and screws (5).  Torque screws to 35 Ib.-ft.  (47 N-m). FOLLOW-ON TASKS: • Install fan belts (see paragraph 5-37). 5-105