MANUAL TILT ASSIST
90-857046R1 NOVEMBER 2001 Page 5C-9
Slow Tilt Down Under High Thrust
To tilt the engine down under high thrust conditions [where the propeller thrust forces the
shock rod down, creating higher pressure below the memory piston (m)], the camshaft lever
(f) is rotated slightly downward. The internal shaft connected to the lever will open the down
circuit slow transfer valve (i) allowing oil under pressure into the cavity around the shaft. The
higher oil pressure will open the up circuit fast transfer valve (j) allowing oil from the bottom
of the cylinder to flow above the shock piston (n) while lowering the engine. Additional oil
will flow into the accumulator (c) as the internal pressure forces the accumulator check valve
(e) to open. Oil flowing into the accumulator moves the accumulator piston (d) and compres-
ses the gas.
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