Yamaha F400A 2022 - Page 431

Drive shaft and lower case (regular rotation model)
8-32
b. Install a new tapered roller bearing out-
er race “a” and the tapered roller bear-
ing inner race “b”.
Do not press the threads “c” of the drive
shaft directly. Make sure that the special
service tool and blocks do not contact the
threads “d” of the drive shaft.
c. Turn the tapered roller bearing 10 turns
or more to seat the bearing, and then
press the drive shaft again using the
specified load.
d. Turn the tapered roller bearing 10 turns
or more to seat the bearing.
e. Install the claw washer “1”, and then
tighten the drive shaft nut “2” tempo-
rarily.
TIP:
Make sure to fit the tab “a” on the claw washer
“1” into the slot “b” in the drive shaft.
f. Secure the drive shaft nut “1” on the
drive shaft.
g. Tighten the drive shaft nut “1” to the
specified torque.
h. Hold the tapered roller bearing outer
race, and then measure the motive
torque of the drive shaft.
Bearing inner race attachment “1”
90890-06639
Bearing inner race attachment “1”
YB-06639
Press load (bearing)
50 × 10³ N (5000 kgf)
Bearing inner race attachment “1”
90890-06639
Bearing inner race attachment “1”
YB-06639
Press load (bearing)
50 × 10³ N (5000 kgf)
Press load (bearing)
50 × 10³ N (5000 kgf)
1
a
GG
d
c
b
a
1
Drive shaft holder “2”
90890-06935
T
R
.
.
Drive shaft nut “1”
46 N·m (4.6 kgf·m, 34 lb·ft)
2
1
a
a
b
2
1