Main motor fault solution of trailer concrete pump

Concrete pump can be seen in many sites, and commonly the main problem is that concrete pump main motor is not up to speed or cannot start.

First of all, it should be understood that if the main motor of the concrete pump for sale motor does not start or is not started, we should first check whether QF1 is closed. If QF1 cannot be closed, check the circuit and troubleshoot. If press the main motor start button, motor casing runs, but can not meet the prescribed speed, we should first check if the power supply voltage is normal at this time, and if transformer capacity is enough to determine the power supply line diameter, to ensure that the voltage drop can remove the problem within the prescribed scope. In addition, if hydraulic system caused by improper operation start is difficult, we should first check the pump when switched on, and then check whether mixing motor operating handle in the median, pumping button is closed. If it is not possible to start, check whether the solenoid valve that controls the pressure of the main oil pump is normal, and the main pump should be in a state of discharge when starting.

In the end, it is important to remind the builders that there is an important problem that if the main oil cylinder of the concrete conveying pump is not replaced, it should check the travel switch and its related lines. If it is normal, check whether the solenoid valve and the hydraulic pressure switch of the main oil cylinder are jammed. In addition, check whether the hydraulic oil pressure of the control hydraulic pressure valve is enough, if not enough, the valve core movement cannot be pushed, and the oil cylinder will not be changed.