The hydraulic oil installed in the hydraulic oil filter element of most good price and quality micro excavator china accounts for only half of the total hydraulic transmission system of the whole equipment. The remaining hydraulic oil is stored in hydraulic oil pump, motor, multi-way valve, hydraulic system and various pipelines. If only the hydraulic oil in the diesel oil tank is replaced, instead of all the hydraulic oil in the hydraulic transmission system of the good price and quality micro excavator china, this method will only match the new and old oil. Therefore, the root pressing must deal with the problem of cleaning the hydraulic transmission system. It is not necessary to discard the oil in the hydraulic oil filter element. The oil in the diesel oil tank of the hydraulic transmission system of the good price and quality micro excavator china is also discharged, so a lot of old oil remains in the hydraulic transmission system of the good price and quality micro excavator china. When new oil enters the system software, it will first be polluted by the residual oil in the system software, and then the cleanliness of the oil will be greatly reduced.

Therefore, as long as the hydraulic transmission system of the good price and quality micro excavator operates under the vacuum pump of the circulation system, this kind of oil change method can not deal with the problem of cleaning oil. The old oil in the filtering device can improve the cleanliness of the hydraulic oil of the good price and quality micro excavator china from the source.

The precision of the hydraulic filter element of the good price and quality micro excavator china can be controlled according to the standard of the hydraulic excavator μ M, and even the filter elements of some loading and cutting machines will also have high filtering precision. Less than 10 μ m. It will endanger the circulation of pump oil and the operation speed of the vehicle, and even destroy the filter element! Hydraulic oil filter element is common in construction machinery and equipment: the filtering precision is 10 μ M50%, the working pressure range is 1,4 ~ 3.5Mpa, the additional total flow is 40 ~ 400L / min, and the proposed replacement time is 1000 hours.