Yamaha E115A, Service Manual

Page: 218 / 261

BRKT
7-51 61U5H11
Bracket unit
Checking the tilt cylinder and trim
cylinder
1. Disassemble the tilt piston assembly.
2. Check the tilt piston
1
and free piston
2
.
Replace tilt piston and free piston if worn
or deteriorated.
3. Blow the tilt piston absorber valve
3
with
compressed air to remove any dust.
Check the valve and spring. Replace if
worn or deteriorated.
4. Check the tilt ram
4
and trim rams for
bends or excessive corrosion. Polish with
400–600 grit sandpaper if there is light
rust or replace if necessary.
5. Check the trim pistons. Replace if
scratched.
6. Check the inner walls of the trim and tilt
cylinders. Replace if scratched.
Assembling the tilt piston and trim
piston
1. Install the new dust seal
1
and new O-
rings 2 and 3 onto the tilt cylinder end
screw.
2. Install the tilt cylinder end screw onto the
tilt ram.
3. Install the new O-rings
4
and
5
onto the
tilt piston
6
.
4. Install the ball
7
, valve
8
, and spring
9
,
in this order.
5. Install the tilt piston assembly and wash-
er
0
onto the tilt ram, and then tighten
the tilt piston nut
q
to the specified
torque.
6G470540
4
1
3
2
1
2
3
1
2
3
6G470550
q
0 9 8
5
7
4
6
5
4
6G470560
Tilt piston nut
q
:
96 N·m (9.6 kgf·m, 70.8 ft·lb)
61U5H11_07_1 06.2.13 1:24 PM Page 54