Removing The Trim And Tilt Ram Assembly; Checking The Ptt Cylinder And Piston - Yamaha F30B 2018 Service Manual

Removing the trim and tilt ram assem-
bly
1. Loosen:
• Trim cylinder end screw "1"
A
B
A. Worldwide
B. USA and Canada
Cylinder end screw wrench "2"
90890-06591
Trim cylinder wrench "2"
YB-06175-2B
2. Remove:
• Trim and tilt ram assembly
3. Drain:
• PTT fluid
4. Remove:
• Free piston
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Cover the tilt cylinder using a rag "1", and
then blow compressed air through the hole
"a" to remove the free piston "2".
2
1
When removing the free piston, never look
into the tilt cylinder opening because the
free piston and PTT fluid could be expelled
forcefully.
2
1
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
5. Remove:
• Tilt piston
• Tilt cylinder end screw
• Absorber valve

Checking the PTT cylinder and piston

1. Check:
• PTT body
Corroded/cracked  Replace.
• Inner surface of the PTT body
• Tilt cylinder end screw
• Outer surface of the tilt piston
• Outer surface of the free piston
Cracks/scratched  Replace.
• Trim and tilt ram assembly
Rust  Clean using 400–600-grit sandpa-
per.
Bent/corroded  Replace.
9-42
PTT cylinder
1
2
a