Acting hydraulic system is increased by varying the pressure force. A complete hydraulic system consists of five parts, namely, power components, actuators, control components, auxiliary components (attachment) and hydraulic oil. Hydraulic system can be divided into two categories: the hydraulic drive system and hydraulic control system. Hydraulic drive system to transmit power and motion as the main feature. Hydraulic control system will make the output of the hydraulic system to meet specific performance requirements (especially dynamic performance), commonly referred to as hydraulic systems mainly refers hydraulic transmission. Import maintenance, increase the speed of the hydraulic motor of the hydraulic pump is also limited by the back pressure. For example crank rod hydraulic motor, hydraulic pump speed is increased when the import agent, back to the oil back pressure must be significantly increased in order to ensure the link will not hit the surface of the crankshaft, thus avoiding collision phenomenon. As the pump speed is increased in the import of maintenance, the required back pressure chamber oil return value should be increased. But excessive increase back pressure of the hydraulic motor efficiency will drop significantly. In order to make the efficiency of the motor is not too low, the motor speed should not be too high. Imported hydraulic pump maintenance | crystal create a hydraulic (certified) | pump from Jinan Jing Chong hydraulic machinery Limited. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) Shandong Jinan, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In the crystal to create a hydraulic leadership with the staff warmly welcome all inquiries negotiations to create the crystal to create a better future for the hydraulic. You can also access (www.jnjcyy.com/supply_details_51402155.html), for more information about the company.