As the models of automatic transmission are convenient to drive on urban roads, the share is increasing. However, the structure of automatic transmission is complex compared with manual transmission. Once damaged, the maintenance process is more difficult. The maintenance process of automatic transmission can be divided into the following three steps.

在拆卸自动变速箱之前一定要查找库存是否有对应的自动变速箱型号，在不能保证起码的易损件和必换件都充沛的情况下，不建议立即拆卸解体。

Before disassembling the automatic transmission, it is necessary to find out whether there is a corresponding automatic transmission model in stock. It is not recommended to disassemble it immediately if it cannot be guaranteed that there are sufficient vulnerable parts and necessary replacement parts.

可先放干变速箱机油，卸下优盘，检车残油品种的杂质部分，在正常情况下，含有深褐色或褐色粉末为离合器片磨损，亮白色金属粉末为油泵、单向离合器、齿轮机构磨损，从而进一步判断车子的故障。

Drain the transmission oil first, remove the USB flash disk, and check the impurities of the residual oil. Under normal circumstances, the dark brown or brown powder is the wear of the clutch plate, and the bright white metal powder is the wear of the oil pump, one-way clutch and gear mechanism, so as to further judge the fault of the car.

拆卸时

During disassembly

因车身底板形状个位置的限制，直接从发动机后部拆下变速箱往往显得空间不够，可靠的办法是连同发动机一同从车上吊下。

Due to the limitation of the shape and position of the underbody, it is often insufficient to remove the gearbox directly from the rear of the engine. The reliable way is to lift it from the vehicle together with the engine.

把自动变速箱拉离发动机时，应该沿着轴向拉动，克伴以绕轴线的顺和反方向转动，但不得上下左右摆动，以免损坏自动变速箱输入轴与液力耦合器或变矩器连接比分的表面状况与配合。

When the automatic transmission is pulled away from the engine, it shall be pulled along the axial direction to rotate in the forward and reverse directions around the axis, but it shall not swing up, down, left and right, so as not to damage the surface condition and fit of the connection between the input shaft of the automatic transmission and the hydraulic coupler or torque converter.

解体与装合

Disassembly and assembly

首先准备好工具及盛放各类零件的小盒子，在干净平整的操作台上进行解体，从前部油泵开始，从前至后，由外向里逐步进行，并做好记录。

First, prepare tools and small boxes containing various parts, disassemble them on a clean and flat console, start from the front oil pump, from front to back, step by step from outside to inside, and make records.

在拆卸的时候，一定要记住不能用撬棍和铁器直接敲打，因自动变速箱壳体大多数用铝合金铸成，在拆卸液控阀体是防止上下阀体分离时滚珠、卡环等掉地，要准确记住正确位置，拆卸单向离合器要注意正确配装方向，装合时不能颠倒，零件拆卸后应用汽油洗净，确保各元件的清洁。

During disassembly, it must be remembered that crowbars and irons cannot be used to directly knock, because most of the automatic transmission shells are made of aluminum alloy. When disassembling the hydraulic control valve body, it is to prevent the ball and snap ring from falling to the ground when the upper and lower valve bodies are separated. Remember the correct position accurately. Pay attention to the correct assembly direction when disassembling the one-way clutch, and do not reverse the assembly. Wash the parts with gasoline after disassembly, Ensure that all components are clean.

如更换新离合器片、制动片应在变速箱油中浸泡，待吸足油后才能装合，另外一定要注意，装合时严格按照规定力矩拧紧螺钉。

If new clutch plates and brake pads are replaced, they shall be soaked in the transmission oil and assembled only after sufficient oil is absorbed. In addition, it must be noted that the screws shall be tightened in strict accordance with the specified torque during assembly.

自动变速箱出现故障大多数是由于车主使用不当造成的，部分车主总是认为自动变速箱油不需要更换、自动变速箱进水也不需要理会，导致变速箱的损伤越来越大，甚至报废。为了保障广大车主的行车安全，各位在平常行车中一定要正确使用车辆，一旦车子出现问题一定要及时送往公司进行检查维修，以免造成大患！

Most of the failures of the automatic transmission are caused by improper use of the vehicle owner. Some vehicle owners always think that the automatic transmission oil does not need to be replaced and the automatic transmission water does not need to be ignored, resulting in more and more damage to the transmission and even scrapping. In order to ensure the driving safety of the majority of car owners, you must use the vehicle correctly during normal driving. Once the vehicle has problems, you must send it to a professional company for inspection and maintenance in time to avoid serious problems!