The main work contents of fault diagnosis and troubleshooting of parker oil pump accessories are as follows:

(1) determine the nature and severity of the fault. Determine whether there is a fault, what kind of problem (pressure, speed, action or other), and the severity of the problem (normal, minor, general or serious) according to the site conditions.(2) find the failure component and failure location. According to the symptoms and related information, parker hydraulic motor accessories to find fault points, in order to further troubleshoot the fault. The main thing here is to figure out what the problem is.(3) further find the initial cause of failure, such as hydraulic oil pollution, parker vane pump parts hydraulic components reliability is low, environmental factors are not required. This is mainly to find out the external cause of the fault.(4) mechanism analysis. The causal chain of fault is analyzed and discussed in depth to find out the cause and effect of the problem.(5) troubleshooting. It is mainly to eliminate all kinds of factors that cause the failure and restore the system to normal.