变速箱泄压主要是指液压控制系统中油压过低。变速箱液压控制系统依靠变速箱油的压力来控制主动换挡执行器中阀体、离合器和制动器的故障，从而完成自动换挡。要想了解变速箱泄压的原因和相应的维修方法，
济南变速箱维修厂家认为您可以从以下几个方面进行分析和处理。
Transmission pressure relief mainly refers to the low oil pressure in the hydraulic control system. The transmission hydraulic control system relies on the pressure of the transmission oil to control the failure of the valve body, clutch and brake in the active shift actuator, thus completing automatic shifting. In order to understand the causes of gearbox pressure relief and the corresponding maintenance methods, Jinan gearbox maintenance manufacturer thinks that you can analyze and deal with it from the following aspects.
液压控制系统组成
Composition of hydraulic control system
液压控制系统一般由油泵、限压阀、调压阀、换挡阀和锁止阀组成。这些部件可以为变速箱提供稳定而充足的油压，并可以调节液压系统的油压。还有一些附件，如油管、油管接头、过滤器和密封件等。，可以运输、储存和密封液压油，还可以散热。
The hydraulic control system is generally composed of oil pump, pressure limiting valve, pressure regulating valve, shift valve and lock valve. These components can provide a stable and sufficient oil pressure for the transmission and can regulate the oil pressure of the hydraulic system. There are also some accessories, such as oil pipes, oil pipe joints, filters and seals., It can transport, store and seal hydraulic oil, and also can dissipate heat.
压力低的原因和维修
Causes and maintenance of low pressure
对于低压维修，可以通过自动变速器的油压测试来判断。通过测试液压系统中的油压，我们可以有效地知道管道、管道接头和部件是否漏油，以及这些部件的故障状态是否正常。
Low pressure maintenance can be judged by the oil pressure test of automatic transmission. By testing the oil pressure in the hydraulic system, we can effectively know whether the pipes, pipe joints and components are leaking oil, and whether the fault status of these components is normal.
维护方法：准备一个2MPa的压力表，然后连接到每个油压龙头的位置，主要测试前进档和倒档主油路的油压。在测试过程中，将变速箱档位置于每个前进档或倒档，并读取怠速和失速状态下主油路的油压。
Maintenance method: prepare a 2MPa pressure gauge, and then connect it to the position of each oil pressure tap, mainly to test the oil pressure in the main oil circuit of forward gear and reverse gear. During the test, place the transmission at each forward gear or reverse gear, and read the oil pressure in the main oil circuit under idle and stall conditions.
油压低的原因可以根据数据来分析，例如，如果测量数据都很高，则表明节气门或调节阀有故障；如果测量数据低，则是油泵和超速档直接离合器故障；如果只有D档油路低，则意味着D档油路泄漏。
The cause of low oil pressure can be analyzed according to the data. For example, if the measured data are very high, it indicates that the throttle or regulating valve is faulty; If the measured data is low, it is the fault of the oil pump and the overdrive direct clutch; If only the D gear oil circuit is low, it means that the D gear oil circuit is leaking.
The reasons for the pressure relief of the gearbox and the corresponding maintenance methods are the related contents explained above. You can avoid multiple problems when using the product equipment only if you understand them well. Please come to us for more information about gearbox maintenance http://www.jnbsx.com Come on!
