(1) Double Acting Valve Llever (Self Reurn Type)
(A) Port A (Single Acting) (B) Port B
M46O516A
EXTERIOR HYDRAULIC CONTROL SYSTEM (OPTIONAL)
DOUBLE ACTING VALVE LEVER
KIOTI
supplies two types of the
double acting valves by region: self-
return type and detent type.
For the self-return type double act-
ing lever, it returns to its original
position to block the hydraulic uid
when it is pushed/pulled and then
released. However, this type of
double acting valve lever should be
pulled or pushed continuously for
operation which is suitable for an
implement with a short operating
time, such as the hydraulic cylinder.
For the detent type double acting
valve lever, it keeps its position af-
ter it is pulled or pushed to a certain
position. Therefore, it is not neces-
sary to hold the lever to a certain
position which is suitable for an
implement with a long operating
time, such as the hydraulic motor.
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 period 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.
When the detent valve is in op-
eration, unnecessary load is ap-
plied to the engine. Therefore,
the engine power decreases
signicantly, and noise and vi-
bration by opening 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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