1 Reasons for slow lifting of dump truck carriages
① There is strong frictional resistance between the lifting systems, and the return oil circuit is not smooth;
② The lifting cylinder limit valve is not tightly sealed, and the sealing ring of the lifting cylinder is not tightly sealed, resulting in insufficient oil pressure;
③ Severe blockage or leakage of pipelines;
④ The goods loaded on the vehicle exceed the rated carrying capacity of the entire vehicle;
2, The reason for the automatic falling of the lifting system of the dump truck carriage
① The lifting sealing ring of the vehicle is not tightly sealed;
② The distribution valve is not in place;
③ Leakage in the conveying pipeline;
3, The reason why the dump truck carriage cannot fall or stop at will
This usually refers to insufficient air pressure or the amount of oil in the fuel tank, as well as problems with the power take-off and other components of the vehicle.