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Mercury 45 Service Manual

Mercury 45
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POWER TRIM
90-828631R3 MARCH 1999 Page 5B-23
Manual Tilt
To manually tilt the outboard engine, the owner will need to back out the manual release
valve (j). With the valve backed out, the internal passages inside the manifold are connected
together. These passages connect both the cylinder down and up cavities together, along
with the reservoir (t), allowing the engine to be raised or lowered. Trim rod (b) movement
will continue until the manual release valve is closed, locking the fluid inside of the cylinder
and manifold.
a-Electric Motor
b-Trim Rod
c-Impact Relief Valve
d-Shock Piston
e-Memory Piston
f-Manifold
g-Suction Valve
h-Down Circuit Pressure Operated Valve
i-Tilt Relief Actuator
j-Manual Release Valve
k-Tilt Relief Valve
l-Up Circuit Pressure Operated Valve
m-Down Circuit Feed Check Ball
n-Oil Pump Gears
o-Up Circuit Feed Check Ball
p-Shuttle Valve
q-Down Circuit Pressure Relief Valve
r-Check Ball
s-Reservoir Oil
t-Oil Reservoir
u-Oil Fill Cap
v-Shock Return Valve
w-Filter

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Mercury 45 Specifications

General IconGeneral
Horsepower45 HP
Cylinders3
StartingElectric
Full Throttle RPM Range5000-6000 RPM
SteeringRemote
ExhaustThrough Prop
Shaft Length20 in

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