When installing the suction pipe, pay attention to the following matters: no air leakage is allowed. On the screw thread and flange surface of the pump suction part, air is often leaked due to small cracks. In addition, the suction side of the door (unnecessary and unnecessary) will leak into the air. The resistance of the suction pipe should not be too high, otherwise oil suction, cavitation and other phenomena will occur. The suction height of the pump should have different requirements for the pump's vision, generally not more than 500 mm.

Remove the unit pump products (samples in footnotes, this book or footnotes), and usually the suction pipe should be an oil suction filter The accuracy of the grid is generally between 100~200 meshes. After more than twice of the area, the grid should be larger than the tubing. Research and disassembly are very simple (regular cleaning).

Pay attention to the following items when installing the oil return pipe: the hydraulic cylinder or overflow valve on the oil return pipe should be stretched toward the oil level below the oil tank to prevent splashing from causing bubbles. The overflow valve on the oil return pipe cannot be directly connected to the pump inlet, but must pass through the oil tank, otherwise, the oil temperature will rise rapidly. The leakage of the solenoid valve and the oil return pipe is connected, and there should be no back pressure, otherwise it should be separately in the oil tank.

All pipes shall be installed twice Once the pipeline is installed, it is usually pickled with 20% sulfuric acid or hydrochloric acid solution, washed with 10% soda water, then washed with warm water, dried, oiled, and pressure tested. After installation, it is prohibited to bring sand, scale, iron and other pollutants into the pipeline and valves.

When installing all pipelines, it is necessary to clean the oil and oil tank, which can be a labor in the cycle. Clean the main system of the oil transmission pipeline, the oil discharged from the overflow valve, hydraulic valve, oil tank circuit, the feed port of the valve block, and the hydraulic cylinder block with ordinary oil. The irreversible effect is in the washer, the oil, and the complex absorption and distribution of the cleaning of each department

A filter shall be installed on the oil suction side of the pump to prevent impurities from entering the pump twenty × The square meter/second washing oil viscosity is beneficial to the active turbine oil (when the temperature is 38 ℃). The oil port in the oil tank is installed with 80~80 connecting filters. The strength of ordinary rubber is washed with dissolved oil. If it is heated to 50~80 ℃, the rubber pipe, cinder, etc.

20 minutes~The washing time is 3 hours or more every day. When cleaning, it should be slapped, turbulent, and the pipe should be repeatedly accelerated or the dirt should be broken After washing, the washing oil will be washed away, but there is always residue in the oil, and it will be mixed back in the hydraulic oil. Therefore, water, steam, kerosene, alcohol, etc. cannot be used as the cleaning agent. Clean in the cleaning tank, and the Z final thorough cleaning test. It is applicable to the requirements. At this time, the hydraulic cylinder, control valve, etc. are stuck in the correct direction of the system, and slowly run from no-load.