Hydraulic jacks crawling method outlined eight hydraulic jack handle crawling is a situation we will encounter is a lot of consumers are more troublesome phenomenon manufacturer of hydraulic jacks, then how to deal with hydraulic jacks crawling phenomenon it ? Xiaobian for you summed up the eight. First, the end cap of the hydraulic cylinder seals too tight or too loose. Ring should be adjusted so that there is proper tightness to ensure smooth rod back and forth by hand pulling without leakage. Second, the piston rod poor rigidity. Increase the rod diameter. Third, the rod bent. Should straightening rod. Four, the gap between the cylinder moving part is too large. With the gap should be reduced. Fifth, the installation position shift hydraulic jacks. Should check the hydraulic cylinder and parallel rails 200t hydraulic jacks, and calibration. Six, piston and piston rod concentricity bad. Should be corrected, adjusted. Seven-cylinder air intrusion. Should be added to the exhaust system, or the hydraulic cylinder to the maximum stroke rapid movement, forced exclusion of air. Eight, after the installation of hydraulic jacks and rails are not parallel. Should be adjusted or re-install. QF-type separation of double-acting hydraulic jack, hydraulic return hydraulic jacks, use of advanced manufacturing technology, high strength thick cylinder, with a high safety factor, long life high quality hydraulic jacks, is the product of years of experience to develop our factory 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 -S 200t hydraulic jacks, hydraulic power Lu (certified), hydraulic jacks are provided by Lu of hydraulic equipment 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.