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How to do if the reversing valve of automatic feeding mixer fails

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       Each city will have a certain number of mixing stations, this is because the construction of high-rise buildings in the city can not be separated from concrete, and concrete transportation can not be separated from automatic feeding mixing truck, so automatic feeding mixing truck is very important, automatic feeding mixing truck is composed of multiple components, such as chassis, tank loading, hydraulic system, subframe, reversing valve and so on, The reversing valve will occasionally fail, such as the valve can not reverse or the reversing action is slow, gas leakage, electromagnetic pilot valve fault, and so on. The following Xiaobian will give you a brief introduction to the solution to these faults.
       1. The reversing valve of the automatic feeding stirring truck can not be reversed or the reversing action is slow, which is generally caused by poor lubrication, spring is stuck or damaged, oil or impurities are stuck in the sliding part and so on. At this time, we should first check whether the oil mist works normally and whether the viscosity of lubricating oil is appropriate. If necessary, replace the lubricating oil, clean the sliding part of the reversing valve, or replace the spring and reversing valve.
       2. The reversing valve of the automatic feeding stirring truck is prone to wear and tear of the spool seal ring, valve stem and valve seat damage after being used for a long time, leading to gas leakage in the valve, slow action or abnormal reversing of the valve and other faults. At this point, you need to replace the sealing ring, stem and seat, or replace the reversing valve.
       3, if the inlet and outlet of the solenoid pilot valve is blocked by mud or other debris, the sealing is not strict, the movable iron core is stuck, the circuit is faulty, can lead to the reversing valve can not be normally reversed, for the first three cases should be cleaned the pilot valve and the movable iron core on the mud and impurities, and the circuit fault can be generally divided into circuit fault and electromagnetic coil fault two categories. Before checking the circuit fault, it is necessary to turn the manual knob of the reversing valve several times to see whether the reversing valve is normal under the rated pressure. If it can be normal reversing, it is a circuit fault; When checking, you can use a meter to measure the voltage of the electromagnetic coil to see if it has reached the rated voltage. If the voltage is too low, you should further check the power supply in the control circuit and the associated travel switch circuit.
       The above is the content of this introduction, I hope to help you!

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