Installing The Lower Unit (U-Transom Model) - Yamaha F225F Service Manual

7. Place a block of wood between the anti-
cavitation plate and the propeller to
prevent the propeller from turning, and
then tighten the propeller nut m to the
specified torque.
Propeller nut m:
54 N·m (5.4 kgf·m, 39.8 ft·lb)
8. Install a new cotter pin n. NOTICE: Do
not reuse a cotter pin, always replace
it with a new one.
n
m
TIP:
If the slots in the propeller nut m are not
aligned with the cotter pin hole, tighten the
propeller nut m until they are aligned.
9. Fill the lower unit with gear oil up to the
proper level. See
"Changing the gear oil" (10-10).
Drive shaft and lower case (regular rotation model)
steps 7–10 in
Installing the lower unit (U-transom
model)
• Make sure to disconnect the battery
cables 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 pro-
peller nut, do not hold the propeller
using your hands.
1. Check that the shift rod is in the N posi-
tion. See steps 1 and 2 in "Installing the
lower unit (X-transom model)" (8-33).
2. Install the lower case stud bolts a, and
then tighten it to the specified torque.
a
a
Lower case stud bolt a:
23 N·m (2.3 kgf·m, 17.0 ft·lb)
3. Install the dowels b, rubber seal c, and
extension d, and then install the adapter
e and speedometer hose f.
4. Install the dowels g and lower unit h,
and then tighten the lower case mounting
nuts i and lower case mounting bolts j
k
and to the
NOTICE: Make sure to align the
splines on the lower unit shift rod with
the splines on the upper case shift
rod. Otherwise, the shift rods could be
bent.
a
a
specified torque.
8-34
0
1
2
3
4
5
6
7
8
9
10
A