Simple identification method of hydraulic oil quality，In the absence of special testing equipment, we have summarized several methods to easily detect and identify the quality of hydraulic oil.Visual inspection method. If the oil is milky white and turbid, it means that the oil contains a lot of water. Combustion method. Dip a small amount of oil to be tested with clean, dry cotton yarn or tissue paper, and then ignite it with fire. If there is a "crack" popping sound or flashing phenomenon, it means that the oil contains more water.

Maintenance knowledge of hydraulic oil,Performance requirements of hydraulic oil,Different brands of hydraulic oil must not be mixed,The influence of contaminated impurities in hydraulic oil on hydraulic oil,The influence of dust,Water hazards,Filtration of dust and water,Change hydraulic oil regularly,When hydraulic oils of different brands are mixed together, they will not be able to exert the performance of the hydraulic oil, and will produce sediments, which will greatly reduce the output power.

11 precautions for the use of hydraulic pumps,(1)Precautions for hydraulic pump connection,The hydraulic pump can be installed with a support or a flange.The hydraulic pump and the prime mover output shaft should be connected by an elastic coupling.The oil suction pipe should be as short as possible, straight, large, and thick. The oil suction pipe generally needs to be equipped with a coarse filter with a nominal flow rate not less than twice the pump flow rate (the filtration accuracy is generally 80-180μm). The oil inlet and outlet of the hydraulic pump should be installed firmly, and the sealing device should be reliable.The self-priming height of the hydraulic pump does not exceed 500mm (or the imported vacuum does not exceed 0.03MPa).