wsm L503 - 12 Auxiliary Control Valve; Double Acting Type 1

8-M20
L3130 · L3430 · L3830 · L4630 · L5030, WSM
HYDRAULIC SYSTEM
12. 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.
W1015469
■ 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.
W1015571
■ 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.
W1015748
(1) Check Valve
(2) Spool
A : A Port (Implement Cylinder)
B : B Port (Implement Cylinder)
P : Pump Port
N : Neutral Port
T : Tank Port
(1) Check Valve
(2) Spool
A : A Port (Implement Cylinder)
B : B Port (Implement Cylinder)
P : Pump Port
N : Neutral Port
T : Tank Port
(1) Check Valve
(2) Spool
A : A Port (Implement Cylinder)
B : B Port (Implement Cylinder)
P : Pump Port
N : Neutral Port
T : Tank Port
KiSC issued 02, 2007 A