Solenoid Valve - Kubota M6040 NARROW Workshop Manual

M6040, M7040Narrow, WSM

(2) Solenoid Valve

Being not electrified, it is kept in neutral position.
Therefore, oil is flowed to neither Bi-speed turn clutch (5)
nor 4WD clutch (4) when the 4WD / Bi-speed turn switch
is switched to OFF position.
Oil of the hydraulic clutch is drained to the
transmission case through the 4WD clutch (4) 2WD side
(b).
When the 4WD solenoid is electrified, the oil
pressure from the P port to A port to 4WD clutch (4).
And the oil pressure feeds the spool (4WD priority
valve) (2) to change the hydraulic line.
The spool (4WD priority valve) (2) opens Bi-speed
turn clutch (5) and tank port to prevent the 4WD clutch
(4) and Bi-speed clutch (5) are not engage at the same
time.
(1) 4WD Solenoid Valve
(2) Spool (4WD Priority Valve)
(3) Bi-speed Solenoid Valve
(4) 4WD Clutch
(5) Bi-speed Turn Clutch
(6) PTO Solenoid Valve
N3-M5
TRANSMISSION
A : 4WD Port
B : Bi-speed Turn Port
C : Bi-speed Turn Clutch Port
P : From Power Steering
Pump
T : To Tank
(a) 4WD Side
(b) 2WD Side
9Y1210220TRM0003US0
KiSC issued 07, 2012 A