Hydraulic jacks usual maintenance 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 frequently used filters cleaned once every two months, half a tank cleaning, and replace with new oil. 2, pump the normal operating temperature of 10`C-50`C. EHV sync jack high oil temperature, cooling measures to be taken or stop the pump, when the 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. Our company is specialized in producing all kinds of separate hydraulic jacks and hydraulic equipment business. Specializing in the production of large tonnage 5--2000 ton hydraulic jacks, high pressure electric (hand) dynamic hydraulic pump stations and a variety of convenient and practical hydraulic tools. Large number of products exported abroad, by the majority of users praise. Enterprises adhere to the principle of quality first, reputation first, excellence and strive to provide trustworthy various hydraulic tools. Years of research and development, production experience from manual jack, product testing from the purchase of raw materials, processing of products, the factory, each link quality as the first element, the strict implementation of national quality standards. Therefore, I plant products are reliable, durable and strong jack, timely service, thoughtful and reputation of users. All products of the technical indicators are close to or reached the international level. The company since its inception, in the community care and support of colleagues while separate hollow jack of all staff unremitting efforts, continue to grow and develop. Become Dezhou production of various kinds of electric jacks, hydraulic jacks products in recent years. From manual jack, Lu Hydraulic (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.