In addition to carefully analyze whether the fault lies in the outer road connection hydraulic components, but also pay special attention to figure out the system moves from one state to another job working state what kind of control the hydraulic repair shop to use "even in the middle", Control if the signal is wrong hydraulic repair phone, it should address the physical, each inspection, pay attention to whether the connection between all the main oil line between wrong and main oil line and control circuit and generate mutual interference, if any mutual interference, to Analysis of how to use adjustment errors. Pressure is less than the rated hydraulic maintenance Contact reason is the pressure regulator spring deformed or use the wrong hydraulic maintenance, the regulator spring compression stroke is not enough, a leak in the valve is too large, or the pilot valve section cone valve excessive wear. Hydraulic Repair Information, Xi'an-through hydraulic maintenance (certification), by the Xi'an-Tongchuan hydraulic maintenance through hydraulic maintenance Limited. Xi'an-hydraulic-repair Ltd. (www.huosu360.com) (www.xayeya.com) is Xi'an, industrial maintenance, installation of leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. Xi'an Chengtong hydraulic service leadership with the staff warmly welcome all inquiries negotiations to create Xi'an Chengtong hydraulic service better future.