Auxiliary Control Valve; Double Acting Type 1 - Kubota L3540 Workshop Manual

L3540, L4240, L5040, L5240, L5740, WSM

7. AUXILIARY CONTROL VALVE

[1] DOUBLE ACTING TYPE 1

Neutral
Pressure-fed oil from the hydraulic pump is delivered
into the P port, and flows to the position control valve via
N port.
(1) Check Valve
(2) Spool
A : A Port (Implement Cylinder)
B : B Port (Implement Cylinder)
Lift
When the spool (2) is moved in the direction of the
arrow, the pressure-fed oil in the P port opens the check
valve (1) and flows to the implement cylinder via B port.
Return oil from the implement cylinder flows from the
A port to the transmission case through T port.
(1) Check Valve
(2) Spool
A : A Port (Implement Cylinder)
B : B Port (Implement Cylinder)
Down
When the spool (2) is moved in the direction of the
arrow, the pressure-fed oil in the P port opens the check
valve (1) and flows to the implement cylinder via A port.
Return oil from the implement cylinder flows from the
B port to the transmission case through T port.
(1) Check Valve
(2) Spool
A : A Port (Implement Cylinder)
B : B Port (Implement Cylinder)
8-M19
HYDRAULIC SYSTEM
P : Pump Port
N : Neutral Port
T : Tank Port
W1021413
P : Pump Port
N : Neutral Port
T : Tank Port
W1021629
P : Pump Port
N : Neutral Port
T : Tank Port
W1021856
KiSC issued 04, 2010 A