Yamaha F225F Service Manual page 535

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.
b
c
a
d
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.
f
e
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.
b
b
a
a
b
f
e
h
g
h
g
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.
b
a
c
a
g
a
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)
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.
PTT cylinder
d
e
a
a
f
9-56
0
1
2
3
4
5
6
7
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9
10
A