Yamaha F225F, Service Manual

Page: 535 / 576

9-56
PTT cylinder
0
1
2
3
4
5
6
7
8
9
10
A
Assembling the trim ram
• When assembling the PTT unit, do not
use a rag. Otherwise, dust and particles
could get on the PTT unit components,
causing poor performance.
• Do not reuse a dust seal or O-ring,
always replace it with a new one.
1. Install the backup ring
a
, a new O-ring
b
, the spring
c
, the adapter
a
, and the
circlip
d
to the trim piston
b
.
2. Install a new dust seal
e
, the circlip
f
,
and a new O-ring
g
to the trim cylinder
end screw
h
, and then install the trim
cylinder end screw
h
onto the trim ram
c
.
Installing the tilt cylinder
• When assembling the PTT unit, do not
use a rag. Otherwise, dust and particles
could get on the PTT unit components,
causing poor performance.
• Do not reuse an O-ring, always replace it
with a new one.
1. Install a new O-ring
a
to the free piston
b
.
2. Push the free piston
b
into the tilt
cylinder
c
until it bottoms out.
3. Install the tilt cylinder
c
.
4. Install a new O-ring
d
and the pipe joint
adapter
e
, and then tighten the pipe joint
adapter
e
to the specified torque.
5. Install the pipes
f
and
g
, and then
tighten the pipe joints
a
to the specified
torque.
Installing the trim ram
When assembling the PTT unit, do not use
a rag. Otherwise, dust and particles could
get on the PTT unit components, causing
poor performance.
1. Fill the trim cylinders with the recom-
mended fluid up to the proper level
a
.
a
b
b
a
d
a
c
b
b
e
f
e
h
c
g
f
g
h
Pipe joint adapter
e
:
20 N·m (2.0 kgf·m, 14.8 ft·lb)
Pipe joint
a
: 15 N·m (1.5 kgf·m, 11.1 ft·lb)
g
b
a
c
a
f
e
d
a
a
a