Suzuki GF60A, Service Manual

Page: 269 / 336

Power Trim and Tilt: 2B-4
Trim / Tilt Down Circuit
When the PTT switch is operated in the “Down” position, the electric motor will rotate in a counterclockwise direction
and turn the gear pump (1).
“Down main valve” (2) will open, allowing oil to flow from the reservoir to the pump.
Oil flow from the pump enters the spool valve (3), moving it to the left, thereby opening the “Down check valve” (4). Oil
from the lower cylinder chamber will go through the “Down check valve” (4) to the pump.
Pressure built up by the pump will open the “Up check valve” (5) and oil will enter the upper cylinder chamber. The
piston will retract (move inward), which will tilt the outboard down. Oil in the lower cylinder chamber is returned to the
pump through the “Down check valve” (4).
In the trim area, the trim piston and floating tube are moving with the piston rod.
When full down position is reached, continued operation of the “down” relay will have no effect, as pump oil flow will be
returned to the reservoir through the “Down relief valve” (6).
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IAJ611220003-02