First jacks, hydraulic jacks to keep it lubricated and clean is a must to be guaranteed. So when we jack before routine inspection, we must first do is to clean the surface of the jack, and then slowly dismantle jack peripheral parts. We should note that seal is very fragile parts so be very careful when disassembling point, so when need to be careful inspection and disassembly, do not use excessive force to avoid damage to components. Then carefully check the jack and the surrounding parts of the seal, if the problem has shown symptoms, be sure to carry out maintenance and replacement, there is the problem of seals will damage the jack or use is not normal or does not use all of a sudden normal 320 jack, so jack is not functioning properly and cause equipment downtime. So the next step is to check elsewhere. Secondly, we have to check the hydraulic jack lubricant. Lubrication is very important to reduce losses and increase resistance to stress, not only for the jack, but also for all imports jack. It should be noted that there is also a little thin jack, jack should not add too much grease you might ask why I do not do to explain this issue to look up and see you. Finally, more attention is to cover exposed jack. Check the jack, do not let the jack is exposed to environmental contaminants or moisture. If the work is interrupted, should be oiled paper covered plastic sheet or similar material has been machine. Single acting hollow (feedthrough) is widely used in construction of the separation jack hydraulic jack, bridge construction, road and railway construction, power station construction, equipment upgrade, mechanical demolition, the hollow jack with a pull-up, the center hole for the wire, steel and other pass through the center of the empty can be processed according to user needs, users can request the production of different specifications, different stroke hollow jack, optional hydraulic station, single-acting manual pump. Hydraulic hydraulic jack _ 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.