Hydraulic system oil circuit of the concrete laser screed machine
When the device starts but the hydraulic system does not start, the electromagnetic valve is not electric action, and load sensing pump can keep the standby state at a lower pressure; when the hydraulic system into the working state, the load sensing pump can sense the flow demand of the system and provide adjustable flow rate according to the requirement of the
system, at the same time, the pump can sense and respond to the pressure requirements of the hydraulic system. In the manual mode, charge the three position four way solenoid valve to realize the oil into or return from two chamber of the hydro-cylinder, or motor positive inversion. And the two position two way solenoid valve use the electromagnet on-off to control the branch circuit. In the automatic mode, the laser control system adjusts the action of the solenoid valve and the tilt cylinder solenoid valve according to the real-time condition of the pavement, in the auto mode, do not need operate rocker switch solenoid valve principle.