COMPONENT OPERATION ／

・ Oil flow in LIFT plunger section

RAISE positions

Control Valve

１．When the control lever is moved to "RAISE" position, the tilt spool is moved as shown in the figure.

２．Because of this movement, the spool closes the neutral circuit (3), and the pressurized oil opens the load check valve (1). Then the pressurized oil is sent to the bottom side of the lift cylinder through the port B2.

３．Further, the oil from the rod side of the lift cylinder is sent to the oil tank through the port A2 and the drain passage (4).

1-Load check valve

2-Oil discharged from the pump

3-Neutral

4-Drain

COMPONENT OPERATION ／ Control Valve

・ Oil flow in LIFT plunger section

LOWER positions

１．When the control lever is moved to "LOWER" position, the tilt spool is moved as shown in the figure.

２．Because of this movement, the spool closes the neutral circuit (3), and the pressurized oil opens the load check valve (1). Then the pressurized oil is sent to the rod side of the lift cylinder through the port A2.

３．Further, the oil from the rod side of the lift cylinder is sent to the oil tank through port B2 and the the drain passage (4).

2-Oil

3-Neutral

4-Drain