The concrete chassis of pump truck is mainly used to provide power when the pump truck moves and works. Through the pneumatic device to push the fork in the transfer box, the fork drives the clutch sleeve, and the power of the automobile engine can be switched through the transfer box. Switch to the rear axle of the car to drive the pump car, switch to the hydraulic pump to complete the concrete transfer and distribution.
In the pump car, the power source of the oil pump and the power source of the car are both from the engine of the pump car chassis. The driving system of the car chassis of the oil pump cannot work at the same time, and they are switched through the transfer box. PTO is an air valve system above the control box. It can make the driving gear in the transfer box mesh with the gear shaft that drives the oil pump or the driving gear mesh with the car's universal joint drive gear.