Pressure Returning
Coupler Size
Port A, B PT 1 / 2
Lever 1 Push Pull
Valve
1
port
A Out In
B In Out
DOUBLE ACTING LEVER
H11O585A
This tractor is equipped with the remote
control valve of the double acting type.
However, this valve can also be used in
the single acting type hydraulic cylinder.
1. Connect one end of the hydraulic
port to the single acting cylinder as
shown inthe gure. The hydraulic
pressure is properly supplied to the
cylinder. However, when the hydrau-
lic pressure is released, the cylinder
is contracted only if there is outer
force, such as potential energy.
SINGLE ACTING AND DOUBLE
ACTING CYLINDER
(1) Single Acting Cylinder
(A) External Load
Put the detent valve operating
lever into the neutral position
when the hydraulic implement
is not in use. If the detent
valve is kept in the operating
position for an extended pe-
riod of time, the relief valve is
kept open and the temperature
of the hydraulic fluid rises,
leading to damage of various
hydraulic parts, such as the
oil seals and O-rings.
W h e n t h e d e t e n t v a l v e i s
in operation, unnecessary
load is applied to the engine.
Therefore, the engine power
decreases significantly, and
noise and vibration by open-
ing of the relief valve increase.
It is hard to start the engine
while the detent valve is in op-
eration. This is especially true
in winter and exhaust gas in-
creases even after the engine
is started.
IMPORTANT
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