Remedy: inhalation rotating air: pump and pump cover is added between paper pad; hydraulic pump motor repair with a diamond abrasive on the plate, so that the pump and pump cover vertical error of not more than 0.005mm hydraulic motors overhaul, tighten pump body and pump cover coupling, without leakage. Cause: (14) pump and the motor drive shaft coupling misalignment, friction with a twist: Remedy: Adjust the concentricity of the pump and motor coupling so that error is less than 0.2mm. Cause: (15) meshing precision gear pump is not enough: Remedy: reach for research gear gear precision. Cause: (16) off the pump shaft seal skeleton hydraulic motor is installed, the pump is not sealed: Remedy: replace the pump shaft seal qualification. Pipes water can be raised to a position above the pump and water. For example, if the pump under three meters at the pond, then the pipes on the pump outlet can be 30 meters. As can be seen, there is a big drawback piston, it wasted a lot of water. Generally, in this type of pump water consumption, in fact, only about 10% of the flow along the pipes up. When the rest of the water accumulated momentum out of the water pump. Piston and no magic. We can use an alternative design approach to achieve the same function: 1, the water flow down from the pond to drive a waterwheel. 2, waterwheel connected to a common shaft drive pumps (or reciprocating pumps, centrifugal pumps, etc.). 3 by this pump to pump water on the high places. Repair of hydraulic motors, hydraulic Jing Chong price (certification), a hydraulic motor provided by the Jinan Jing Chong Hydraulic Machinery Co., Ltd .. 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 creating hydraulic leadership with the staff warmly welcome all inquiries negotiations to create the crystal creating hydraulic better future.