Considering the economy should be the lowest total cost of equipment costs, operating costs, maintenance costs and management fees. Centrifugal pump with high speed, small size, light weight, high efficiency, large flow, simple structure, no pulse infusion, steady performance, easy operation and maintenance and convenient. Therefore, the following exceptions roller hydraulic repair, should be used wherever possible centrifugal pumps: a metering requirements, use metering pumps, peristaltic pumps, hose pumps, hydraulic lift roller demanding repair factory, the traffic is very small and there is no suitable low flow high When the centrifugal pump head can be selected, the choice of roller hydraulic reciprocating pump maintenance organizations, piston pumps, can also be used as vortex pumps, vane pumps hydraulic system failure diagnostic methods when cavitation do not ask a lot, but the most common is the feeling diagnostic method. Feeling diagnostic method is by using simple equipment maintenance personnel diagnostic instruments and personal experience with the hydraulic system fault diagnosis, determine the location and cause of failure. Velocity bracket on the "high-yield and efficient" work plays a vital role, especially in the time frame bracket shift should not be people at Shearer elapsed time used hydraulic support roller repair prices under certain circumstances bore Cai flow systems were small, it was decided the speed of movement of the bracket, so the design of hydraulic systems, the flow system should be people. Work double for double back to the ring for the hydraulic system, all the way between the frame and the other way in the cable slot. At work and on the increase every frame a clever way for the return fluid pipes, pipe diameter and between the same frame. Roller hydraulic repair company in Xi'an _ _ Weinan Chengtong hydraulic roller hydraulic repair service from Xi'an Chengtong hydraulic repair Limited. Xi'an Chengtong Hydraulic Maintenance Co. (www.huosu360.com) is Xi'an, industrial maintenance, installation of leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Xi'an Chengtong hydraulic service leadership with the staff warmly welcome all inquiries negotiations to create Xi'an Chengtong hydraulic repair a better future.