變速箱泄壓主要是指液壓控制系統(tǒng)中油壓過低。變速箱液壓控制系統(tǒng)依靠變速箱油的壓力來控制主動換擋執(zhí)行器中閥體、離合器和制動器的故障，從而完成自動換擋。要想了解變速箱泄壓的原因和相應(yīng)的維修方法，濟(jì)南變速箱維修廠家認(rèn)為您可以從以下幾個方面進(jìn)行分析和處理。

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.

液壓控制系統(tǒng)組成

Composition of hydraulic control system

液壓控制系統(tǒng)一般由油泵、限壓閥、調(diào)壓閥、換擋閥和鎖止閥組成。這些部件可以為變速箱提供穩(wěn)定而充足的油壓，并可以調(diào)節(jié)液壓系統(tǒng)的油壓。還有一些附件，如油管、油管接頭、過濾器和密封件等。，可以運(yùn)輸、儲存和密封液壓油，還可以散熱。

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.

壓力低的原因和維修

Causes and maintenance of low pressure

對于低壓維修，可以通過自動變速器的油壓測試來判斷。通過測試液壓系統(tǒng)中的油壓，我們可以有效地知道管道、管道接頭和部件是否漏油，以及這些部件的故障狀態(tài)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.

維護(hù)方法：準(zhǔn)備一個2MPa的壓力表，然后連接到每個油壓龍頭的位置，主要測試前進(jìn)檔和倒檔主油路的油壓。在測試過程中，將變速箱檔位置于每個前進(jìn)檔或倒檔，并讀取怠速和失速狀態(tài)下主油路的油壓。

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.

油壓低的原因可以根據(jù)數(shù)據(jù)來分析，例如，如果測量數(shù)據(jù)都很高，則表明節(jié)氣門或調(diào)節(jié)閥有故障；如果測量數(shù)據(jù)低，則是油泵和超速檔直接離合器故障；如果只有D檔油路低，則意味著D檔油路泄漏。

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.

變速箱泄壓的原因和相應(yīng)的維修方法就是以上所講解的相關(guān)內(nèi)容了，您做好了解才能在使用產(chǎn)品設(shè)備時避免多個問題的出現(xiàn)。更多關(guān)于變速箱維修的的事項就來咨詢我們http://njzhuiri.cn吧！

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://njzhuiri.cn Come on!