HYDRAULIC SYSTEM
B2301, B2601, WSM
(2) Operation Neutral Oil forced into the control valve through P port pushes and opens the unload valve (3), and opens the unload valve (3), and then returns to the transmission case through T1 port. Oil behind the unload valve (3) returns to the transmission case through the groove of the spool (2). Since the check valve (9) and the poppet 2 (5) are closed, oil in the hydraulic cylinder does not flow to the transmission case. Thus, the implement remains at its fixed position. (1) (2) (3) (4) (5) (6) (7) (8) (9)
Valve Body Spool Unload Valve Unload Poppet Poppet 2 Sleeve Adjusting Bolt Connecting Plate Check Valve
P: Pump Port C: Cylinder Port T1: Tank Port
9Y1211156HYM0006US0
Lift When the position control lever is set to "LIFT" position, the spool (2) is pushed into the valve body (1). The oil forced into the control valve body (1) through P port flows to two oil circuits. The first circuit is oil flowing to the back of the unload valve (3) to close it. The second oil circuit is oil flowing to the check valve (9) and the hydraulic cylinder through C port to lift the implement. (1) (2) (3) (4) (5) (6) (7) (8) (9)
Valve Body Spool Unload Valve Unload Poppet Poppet 2 Sleeve Adjusting Bolt Connecting Plate Check Valve
P: Pump Port C: Cylinder Port T1: Tank Port
9Y1211156HYM0007US0
7-M6
KiSC issued 11, 2014 A
