POWER TRIM
90-828631R3 MARCH 1999 Page 5C-13
Maximum Tilt
With the trim rod at maximum travel, and due to no rod movement, the pressure inside of
the trim cylinder (w) will increase to the pressure required to move the tilt relief piston (s).
The tilt relief piston’s “pin” opens the tilt relief valve (r). Up pressure flows allowing the oil
to flow into the trim relief passage, and returns back into the reservoir.
a-Trim Rod
b-End Cap
c-Electric Motor
d-Reservoir Oil
e-Down Circuit Pressure Relief Valve
f-Down Circuit Pressure Operated Valve
g-Filter (2 shown for clarity)
h-Shock Return Valve
i-Up Circuit Suction Port
j-Oil Pump Gears
k-Down Circuit Suction Port
l-Oil Fill Cap
m-Shuttle Valve
n-Up Circuit Pressure Operated Valve
o-Manifold Reverse Suction Valve
p-Manual Release Valve
q-Manifold
r-Tilt Relief Valve
s-Tilt Relief Piston
t-Memory Piston
u-Shock Piston
v-Impact Relief Valve
w-Cylinder
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