手动操纵阀是用手动操纵的阀。
当车辆恢复平稳行驶时，可利用手动操纵阀，将支撑体收回，保持车辆原来的通过性；
When the vehicle returns to smooth running, it uses the hand operational valve to take back the supporting body;
如采用液压操纵，则可直接从泵车的泵送系统中获取液压驱动力，并通过手动液压阀实现操纵。
Such as the use of hydraulic manipulation, or directly from the pump of the hydraulic pumping system of access to driving force, and through hydraulic valve manually manipulated to achieve.
举升操纵阀是自卸汽车液压举升系统的控制中心，该操纵阀分为电磁式、电液式、手动式和气动式等几种。
Lifting control valve is the control center of hydraulic lifting system of dumpers, which is classified into electromagnetic type, electro-hydraulic type, manual type and air-powered type, etc.
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