QF-type separation of double-acting hydraulic jack, hydraulic jack return, the use of advanced manufacturing technology, high-strength thick cylinder, with a high safety factor, long life and other characteristics, is the product of years of experience, I plant developed mature quality products, Widely used in highways, railways, bridges, subways, construction, shipbuilding, mining machinery, foundation settling tests, static piling, pile testing and other industries. QF type can be equipped with separate hydraulic jack hydraulic lock (for selection), as required in the model plus the usual -S hydraulic jack repair methods are there? 1, the working level in the tank should always be kept in the center of the oil the subject line, to prevent pump cavitation. When refueling, use 120 mesh grease filter new oil filter out impurities. When regular use, once every two months cleaning filter hydraulic jacks, half a tank cleaning, and replace with new oil. 2, pump normal operating temperature 10`C-50`C. Jack manufacturers high oil temperature, cooling measures to be taken or stop the pump, jack the price of oil temperature is too low, or low heating measures need to be taken to improve the operation of the oil. 3, before the motor is started, the need to change the valve position in half. Jog a few times to prevent high-pressure pump suction air, before using air excluded. 4, the pump it is set at the factory to work under pressure shall be arbitrarily increased. Hydraulic jack manufacturers _ Lu (certified) _ Jack Lu force provided by the hydraulic machinery plant in Texas. Texas Lu force hydraulic machinery plant (www.luliyeya.com) is a leader in Dezhou, hydraulic machinery and parts, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Lu Hydraulic leadership with the staff warmly welcome all inquiries negotiations to create Lu hydraulic force a better future.