Ptt (Power Trim And Tilt) Unit (F100B) - Yamaha F100C Service Manual

PTT (power trim and tilt) unit (F100B)

The circuit of the PTT unit and the location of its major components are shown in the illustration
below.
1 Lower chamber shuttle valve
2 Up-relief valve
3 Pump chamber
4 Down-check valve
5 Check valve
6 Tilt ram
7 Trim and tilt housing
8 Reservoir
9 Filter screen
0 Shock valve
A Passage to reservoir
B Free piston check valve
C Trim ram
D Shock return valve
60C5D11
E Passage to upper chamber of trim cylinders
F Passage to lower chambers of tilt cylinder and
trim cylinders
G Passage to upper chamber of tilt cylinder
H Thermal valve
I Manual valve
J Lower chamber check valve
K Upper chamber check valve
L Upper chamber shuttle valve
M Up-intake valve
N Pump
O Down-intake valve
P Motor
Technical tips
1-22
1
2
3
4
5
6
7
8
9