The main role of the hydraulic tank of hydraulic oil tank in the hydraulic system for the storage, cooling, separating the oil contained in the air and eliminate foam. We must first consider the choice of tank capacity, general mobile equipment take 2 to 3 times the maximum flow rate of the hydraulic pump sales pump, stationary devices take 3 to 4 times; Second, consider the maintenance of hydraulic oil tank, when hydraulic systems are all projected After the oil tank not lower than the minimum oil level when the oil level after retracting the cylinder must not exceed the maximum oil level; and finally consider the tank structure, the separator tank and tradition can not play the role of precipitation dirt pump maintenance, should be along install a tank longitudinal axis vertical partition. Leave gaps on both sides of the separator space communication between the pump and the tank-side end of the separator plate, hydraulic oil inlet and outlet disposed at one end on both sides of the separator is not connected, so the oil into the oil and return the distance between the most far more than some of the hydraulic oil tank cooling effect. Selection of general particle filter pollutants 10μm or less impact on the pump is less obvious, but more than 10μm, to pump life have significant impact, especially in 40μm or more. Solid particle contamination of hydraulic oil pump is relatively easy to make sports part surface wear and tear, which requires installation of the oil filter to reduce pollution levels. Filtration precision: axial piston pump 10 ~ 15μm, vane pump is 25μm, the gear pump is 40μm. Pollution wear pump can be controlled within the allowable range. Currently the increasingly widespread use of high-precision filter, can significantly extend the life of the pump. Pump maintenance, hydraulic pumps, hydraulic preferred by the Jinan Jing Jing Chong Chong Hydraulic Machinery Limited. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) strong, credible, in Jinan, Shandong mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead crystal create hydraulic and you hand into the brilliant, for a better future!