How to control the flow of piston pump:

(1) improvement of piston system planning. After repeated proof, the final selection of the leading priority valve and load sensing plunger steering, the new system can according to demand, to give priority to the distribution of traffic, regardless of load size, wheel speed bump can ensure enough supply, leaving some fully supply for industry use and eliminates the circuit, because the steering power supply circuit too much and the success rate of loss, the system power down progress, piston pump working pressure.

(2) optimize the configuration of the boom cylinder and piston pump, reduce the operating pressure of the system. After optimization calculation, the boom cylinder adopts the standard series 80/4. The displacement of piston pump is improved from 10ml/r to 14ml/r, the system setting pressure is 14MPa, which satisfies the lift and speed demand of the boom cylinder.

(3) in the process of application should also pay attention to the accurate use and protection of loaders, regular increase or replacement of hydraulic oil, adhere to the cleanliness of the oil, strengthen the usual view and protection.