Ducati Monster 796 Workshop Manual page 382

Fork - steering head: Steering
Insert the washer (13), sealing ring (18) (with the rim facing upwards) and inner ring (L) of bottom bearing (6) onto the
steering shaft after heating it for about 10 minutes to 120 °C.
Insert the tool code 88713.1072 into the steering pin. Push the inner ring (L) on the sealing ring (18), manually pushing
for at least 10-15 seconds.
Lubricate the inner bearing race (L) with the recommended grease.
Fit the ball race (M) on the steering shaft with the smaller diameter of the cage facing upwards and grease the ball race.
Insert the steering shaft in steering head and push it in until it is axially seated.
Fit the bottom yoke assembly to frame.
Grease the ball race (B) and fit it to frame top outer race (C).
Fit the inner ring (A) of the upper bearing (5) to the steering head, with the larger diameter side of the race facing
upwards.
Install the sealing ring (8) with the flat side facing upwards.