1.Can the hydraulic pump of 0.2 square agitator output hydraulic oil? If it is a new hydraulic pump, there is no hydraulic oil output, it may be that the pump body has casting defects (shrinkage cavity, trachoma, etc.), so that the oil suction cavity and the pressure oil chamber are connected, and the pressure oil can be lost, so that the manufacturer should be replaced in time. If it is not the new hydraulic pump, there is no hydraulic oil output, it may be the wrong steering of the pump, serious wear or damage of parts, timely replacement.

2. The hydraulic pump of 0.2-square-meter automatic mixer has oil output. Check whether the relief valve can work normally. If it is not normal, it may be that there is dirt or other reasons in a valve in the pressure oil line stuck in the oil return position, resulting in short circuit of the pressure oil line and overflow loop, it may also be that the pipe joint is loose, or some valves in the pressure oil line leak seriously, or the sealing damage of the hydraulic cylinder and hydraulic motor leak seriously. Cleaning method is to disassemble the relevant valve to stop cleaning, check the size of the sealing gap and various sealing installation, sealing installation damage should be changed.

3. The output flow of the hydraulic pump of the mixer truck decreases significantly with the increase of the pressure, and the pressure cannot reach the regular value, which is caused by the larger gap after the hydraulic pump is worn. Cleaning method is to determine the volume efficiency of the hydraulic pump, you can be sure that the pump can continue to use, wear serious parts, should stop repair or change.

4.automatic mixer hydraulic system can set up normal pressure, and some pipelines or hydraulic cylinder (or hydraulic motor) no pressure, it may be due to the pipeline, small hole or throttle valve, reversing valve and other parts of the infarction. At this point, the pressure and oil should be checked section by section to find out the reason for cleaning.