Checking The Tilt Cylinder And Trim Cylinder; Checking The Valve; Assembling The Tilt Ram - Yamaha F150B Service Manual

BRKT
2. Remove the nut a, and then remove the
tilt piston absorber valves b.
a
b
Checking the tilt cylinder and trim
cylinder
1. Check the inner surface of the PTT body
a. Replace the PTT body if scratched.
2. Check the outer surface of the tilt piston
b, trim pistons c, and free piston d.
Replace if scratched.
3. Check the dust seals e of the end
screws f and g. Replace if damaged or
worn.
4. Check the trim rams h and tilt ram i.
Polish with 400–600 grit sandpaper if
there is light rust or replace if bent or
excessively corroded.
9-53
Bracket unit
i
e
d
g
b

Checking the valve

1. Check the tilt piston absorber valves a.
Clean if there is dirt or residue.
a

Assembling the tilt ram

• Do not use a rag when assembling the
PTT unit because dust and particles on
the PTT unit components can lead to
poor performance.
• Do not reuse the dust seal and O-rings,
always replace them with a new ones.
1. Install a new dust seal a and new O-
rings b and c to the tilt cylinder end
screw d.
e
e
f
h
f
c
h
c
a