MID-SECTION - 5G-590-817643R1 DECEMBER 1996
Tilt Up
With the engine in the down position, the accumulator
piston (d) will be at the top of the accumulator (c) with
the gas at maximum pressure. To raise the engine,
the camshaft lever (f) is rotated all the way down. The
internal shaft connected to the camshaft lever will
move the push rods, opening the accumulator check
valve (e), both fast transfer valves (h & j) and the
down slow transfer valve (i). As the operator lifts the
engine; oil, under pressure inside the accumulator,
will flow around both the slow transfer valve (i) and the
down circuit fast transfer valve (h). Oil flows into the
bottom of the tilt cylinder forcing the memory piston
(m) into the shock piston (n) and then forcing the
shock rod (a) up and out. Oil above the shock piston
exits the cylinder (l) through an interconnecting pas-
sage along side of the cylinder and returns into the
manifold (g). Inside the manifold the oil flows past the
groove in the surge valve (k), through the transfer
valve (j) and mixes with the oil flowing from the accu-
mulator into the up cavity. With the engine in the cor-
rect position, the camshaft lever (f) is rotated up and
the push rods allow the check valves (e, h, i, & j) to
close. The closed check valves prevent the oil from
traveling between cavities and locks the engine into
position.
To Next Page
Loading...
