Installing The Lower Unit; Lower Unit - Yamaha F30B 2018 Service Manual

b. Apply the specified pressure. Check that
the pressure is maintained in the lower unit
for 10 seconds or more.
Do not overpressurize the lower unit. Oth-
erwise, the oil seals could be damaged.

Lower unit

Holding pressure
68.6 kPa (0.69 kgf/cm², 9.9 psi)
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Installing the lower unit

• Make sure to disconnect the battery ca-
bles from the battery, and remove the clip
from the engine shut-off switch.
• When installing the lower unit with the
power unit installed, make sure to sus-
pend the outboard motor. Otherwise, the
outboard motor could fall suddenly and
result in severe injuries.
• When loosening or tightening the propel-
ler nut, do not hold the propeller using
your hands.
1. Check that the pin "a" is aligned with the
alignment mark "b" on the shift bracket "1".
a
1
b
2. Set the gear shift to the N position.
R
N
Shift rod socket "1"
90890-06681
Shift rod socket "1"
YB-06681
3. Install:
• Dowel pin "1"
• Speedometer hose "2"
• Hose joint
• Plastic tie
• Lower unit
• Lower case mounting bolt "3"
• Lower case mounting bolt "4"
• Trim tab "5" (original position)
• Anode "6"
2
1
3
Lower case mounting bolt "3" and
"4"
40 N·m (4.0 kgf·m, 30 lb·ft)
8-22
Drive shaft and lower case
1
F
New
1
4
3
3
6
5