Valve plate face wear, pull the valve plate with grooves using a hydraulic motor, such as JMDG type, NHM type, etc., when the valve plate face wear, especially when pulling a deeper trench, internal leakage increases, the speed is not enough; in addition pressure compensation gap institution failures also cause this phenomenon. You should grinding or polishing the end face of the port plate. After the damaged piston ring on the plunger seal is damaged, resulting in failure of the seal between the piston and the cylinder bore, internal leakage increases. Time to replace the seals. After the cylinder and valve plate repair, the following methods can be used to check for leaks with the surface paver repair Which is good, that is, the disk with Vaseline oil flow to drain path blocked, good oil valve plate coated flat on the platform or flat paver repair, then placed on the cylinder valve plate, cylinder diesel injection hole interval of oiling, oiling that a hole, a hole no oiling, observed more than 4h paver repair prices plunger bore diesel leak and collusion, indicating cylinder and valve plate grinding qualified. Generally institute in the design of plant equipment maintenance paver manufacturers, to determine the use and performance of the pump and pump selection. This choice must first select the pump from the type and form of the beginning, the type of pump is very large, depending on the operating conditions have vastly different selection, then what principle to choose a pump it? What is the basis? Xi'an Chengtong hydraulic maintenance repair quote _ _ paver paver repair Xi'an Shangluo Chengtong hydraulic repair Limited. Xi'an Chengtong Hydraulic Maintenance Co. (www.huosu360.com) adhere to the "people-oriented" business philosophy, has a professional staff, and strive to provide the best products and services to contribute to the community, and to welcome new and old customers to visit us, sincere cooperation for a better future. Xi'an Chengtong hydraulic service - your trusted friend, Company Address: Xi'an, Shaanxi Province Weiyang petrochemical Avenue, Contact: money work.