POWER TRIM
90-857046R1 NOVEMBER 2001 Page 5B-11
Tilt Up
In the up mode, as the piston rod (a) extends from the cylinder (w), the memory piston (t)
clears or uncovers the pressure relief passage. Oil from the up cavity will enter this passage,
and if required, causes the tilt relief piston (s) to open the tilt pressure relief valve (r). This
valve lowers the amount of pressure available to lift the outboard motor. With the engine in
forward gear, and at high engine rpm, the oil pressure available will not be able to overcome
the propeller thrust, limiting the trim range to below the pressure relief orifice. When the en-
gine rpm falls or if engine is not in forward gear, the oil pressure is available to extend the
piston rod (a) up into the tilt range.
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