Removing The Tilt Ram And Trim Ram - Yamaha F150A Service Manual

Removing the tilt ram and trim ram

Before removing the tilt cylinder end
screw, make sure that the PTT rams are
fully extended. Otherwise, fluid could be
expelled forcefully from the PTT unit due
to internal pressure.
1. Connect the battery jumper leads to the
PTT motor lead "1" to fully extend the
PTT rams.
1
G
L
Ram PTT motor lead
Blue (L)
Extend
Green (G)
2. Open the manual valve "1".
1
3. Loosen the tilt cylinder end screw "1",
and then remove the tilt ram assembly.
2
Battery
(+)
(–)
1
9-43
Cylinder end screw wrench "2":
90890-06591
4. Tighten the manual valve "1" to the spec-
ified torque.
1
Manual valve "1":
3 N·m (0.3 kgf·m, 2.2 ft·lb)
5. Connect the battery jumper leads to the
PTT motor lead "1", and then remove the
free piston "2".
When removing the free piston, never
look into the tilt cylinder opening. Other-
wise, fluid could be expelled forcefully
from the PTT unit due to internal pres-
sure.
1
L G
PTT motor lead
Blue (L)
Green (G)
6. Loosen the trim cylinder end screws "1",
and then remove the trim ram assem-
blies.
PTT cylinder
2
Battery
(+)
(–)