In the application process of the automatic mixer, if the hydraulic system presents defects, the operation function of the mixer will be greatly reduced. Only by understanding the causes of the defects of the hydraulic system and timely handling the defects can the mixer recover normally. Today, we collected the causes, diagnosis and cleaning of the short or no pressure of the hydraulic system of the mixer, hoping to help us.
Assuming that the hydraulic system pressure of the automatic mixer is short or no pressure at all, we can check in sequence according to the following aspects:
Check whether the hydraulic pump can output hydraulic oil. If it is a new hydraulic pump without hydraulic oil output, the pump body may have casting defects (shrinkage cavity, sand hole, etc.), so that the oil suction cavity is connected with the oil pressure cavity, and the oil pressure talent is lost, it should be replaced by the manufacturer in time. If it is not a new hydraulic pump and there is no hydraulic oil output, it may be that the steering of the pump is not correct, the parts are severely worn or damaged, and they shall be replaced in time.
If the hydraulic pump has oil output, check whether the overflow valve operates normally. If it is abnormal, it may be that some valves of the pressure oil circuit are stuck due to dirt or other reasons, which are in the oil return direction, resulting in a short circuit between the pressure oil circuit and the overflow circuit, or the pipe joint is loose, or some valves in the pressure oil circuit leak severely, or the seal of the hydraulic cylinder and hydraulic Marta is damaged, which leads to severe leakage.
Cleaning method: disassemble relevant valves for cleaning, check the size of sealing space and various sealing equipment, and replace the damaged sealing equipment.
If the output flow of the hydraulic pump decreases obviously with the increase of the pressure, and the pressure can not reach the specified value, it is caused by the increase of the vacancy after the wear of the hydraulic pump.
Cleaning method: measure the volume power of the hydraulic pump to confirm whether the pump can be used continuously. Repair or replace the severely worn parts.
If the hydraulic system of the whole automatic mixer can set up normal pressure, and there is no pressure in some pipelines or hydraulic cylinders (or hydraulic motors), it may be because of the blockage of small holes, pipelines or reversing valves, throttle valves and other parts. At this moment, it is necessary to check the pressure and oil flow section by section, find out the cause and clean it.
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