Yamaha F50A - Disassembling the Gear Pump; Checking the Tilt Cylinder and Trim Cylinder

62Y3A11
7-64
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Disassembling the gear pump
1. Remove the manual release plug
1
and
gear pump
2
.
2. Remove the relief valve bracket
3
, then
the down-relief valve
4
and up-relief
valve
5
.
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
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.
Gear pump