1.3 System pressure is not normal elimination method (see Table 2. Table 2 system pressure is not a normal phenomenon and the reasons for the elimination Fault elimination method inadequate pressure relief valve bypass valve repair or replacement of damaged valve setting is too low reset Integrated channel block design error redesigned valve repair or replacement of damaged pumps, motors or cylinder damage, overhaul or replace the pressure within the vent unstable oil mixed with air sealing, fuel, exhaust relief valve wear, spring rigidity Repair or replacement of oil pollution, clogged valve orifice cleaning, oil changes with the liquid as the working medium Transmission repair quote hydraulic energy transfer and control, referred to as liquid transmission. According to their works different, can be divided into hydraulic transmission and The drive two former major hydraulic power can be passed by the pressure of the liquid; the latter mainly use the kinetic energy of the liquid transfer power hydraulic transmission is hydrostatic liquid as the working medium, the use of sealed volume of liquid can to deliver power and energy. a transmission mode. In an example shown in Figure hydraulic jack hydraulic transmission can explain how it works. hydraulic jacks conducted two energy conversion in the work process. hydraulic repair Which is good, Xi'an-through hydraulic maintenance (already certification), Shangluo hydraulic service provided by the Xi'an-through hydraulic repair Ltd. 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.