With respect to the mechanical transmission, hydraulic transmission is a new technology that originated in 1654 Pascal hydrostatic transmission principle proposed. It is liquid as the working medium, to form a transmission of energy transfer through energy conversion devices. Hydraulic drive has the following advantages: ① the working fluid can be piped into any position; ② actuator arrangement is not bearing restrictions, with convenient and flexible tubing connections can be arranged transmission mechanism; ③ hydraulic drive can change the original rotary motion motivation linear motion; ④ can easily achieve variable speed; ⑤ load control, speed control and direction control easy roller repair factory, it is easy for centralized control, remote control and automatic control; ⑥ smooth hydraulic transmission without vibration; ⑦ have Good lubrication conditions can improve the reliability and service life of hydraulic components work; ⑧ hydraulic components conducive to achieving standardization, serialization and generalization. Therefore, hydraulic transmission has been widely used in various sectors of the national economy in. At the same time, such as crawler excavators these drivers also use a hydraulic motor. Another advantage is that the hydraulic motor roller repair Which is good, by the pressure of the liquid pumping stations, as is the service pipe rollers, so can be transported to many places, such as excavators, pumping output from the upper part of the hydraulic oil You can drive the hydraulic pump repair to advance on the following travel agency. With the auto industry, hydraulic steering systems are widely used in automobile steering mechanism, especially some heavy-duty trucks, it is a unique lightweight flexibility steering roller maintenance costs, to win the majority of users. However, due to the hydraulic steering system failure rate compared with mechanical steering system, and the fault is not easy to judge, so learning should enhance knowledge in this area, in order to properly use and maintain the pump after repair steering systems, reducing the failure rate. Which good repair roller | Xian roller maintenance | Xi'an Chengtong hydraulic service from Xi'an Chengtong hydraulic maintenance Limited. Xi'an-hydraulic-repair Ltd. (www.huosu360.com) strong, credible, in Xi'an of industrial maintenance, installation and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xi'an-hydraulic service and you work through into the brilliant, for a better future!