Checking The Tilt Cylinder And Trim Cylinder; Check The Valves - Yamaha FT50C Service Manual

3. Remove the gear pump bracket 6, then
the down-shuttle piston 7 and up-shuttle
piston 8.
4. Remove the gear pump cover 9, then
the down-main valve 0 and up-main
valve A.
5. Remove the drive gear B and driven
gear C.
Checking the tilt cylinder and trim
cylinder
62Y5A11
1. Check the power trim and tilt/hydro tilt for
cracks or corrosion. Replace if neces-
sary.
2. Check the inner walls of the trim cylinder
and tilt cylinder for scratches. Replace if
necessary.
3. Check the outer surface of the tilt piston
and free piston for scratches. Replace if
necessary.
4. Check the tilt ram for bends or excessive
corrosion. Polish with #400–600 grit
sandpaper if there is light rust or replace
if necessary.

Check the valves

1. Check the operation of the check valve
a of the trim cylinder end screw and
check the valve for dirt or residue. Clean
if necessary.
2. Check the operation of the tilt piston
absorber valve and check for dirt or resi-
due. Clean if necessary.
3. Check the down-main valve 1 and the
up-main valve 2 for dirt or residue.
Clean if necessary.
Gear pump
1
2
3
4
5
6
7
8
9
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