Because of the convenience of the automatic transmission on the urban road, the occupancy rate is increasing. However, the structure of the automatic transmission is more complex than that of the manual transmission. Once damaged, the maintenance process is more difficult.

因此，今天先來談談自動變速箱維修注意事項。

Therefore, let's talk about the maintenance of automatic transmission.

自動變速箱常見問題

Common problems of automatic transmission

1、行駛中有沖擊的感覺

1. There is a feeling of impact when driving

2、車輛打滑，加速無力，起步無力，甚至無法起步

2. Vehicle skidding, weak acceleration, weak starting, or even unable to start

3、入檔、換擋沖擊，入檔熄火

3. Gear in, shift impact, gear in flameout

4、軸承、差速器、主轉動齒輪、油泵等液壓系統異響

4. Abnormal noise of hydraulic system such as bearing, differential, main rotating gear, oil pump, etc

所以自動變速箱維修要根據車子的不同問題做出不同的對應措施。

Therefore, the maintenance of automatic transmission should make different corresponding measures according to different problems of the car.

我們把自動變速箱的維修過程分三步：拆卸前、拆卸時、后期解體與裝合。

We divide the maintenance process of automatic transmission into three steps: before disassembly, during disassembly, and after disassembly and assembly.

拆卸自動變速箱前

Before removing the automatic transmission

在拆卸自動變速箱之前一定要查找庫存是否有對應的自動變速箱型號，在不能保證起碼的易損件和必換件都充沛的情況下，不建議立即拆卸解體。

Before disassembling the automatic transmission, it is necessary to check whether there is a corresponding automatic transmission model in stock. It is not recommended to dismantle the automatic transmission immediately if the minimum number of vulnerable parts and necessary replacement parts are sufficient.

可先放干變速箱機油，卸下優盤，檢車殘油品種的雜質部分，在正常情況下，含有深褐色或褐色粉末為離合器片磨損，亮白色金屬粉末為油泵、單向離合器、齒輪機構磨損，從而進一步判斷車子的故障。

The gearbox oil can be drained first, the USB disk is removed, and the impurity part of the residual oil is inspected. Under normal conditions, dark brown or brown powder is worn for the clutch plate, while the bright white metal powder is for the wear of the oil pump, one-way clutch and gear mechanism, so as to further judge the fault of the car.

拆卸自動變速箱時

When removing the automatic transmission

因車身底板形狀個位置的限制，直接從發動機后部拆下變速箱往往顯得空間不夠，可靠的辦法是連同發動機一同從車上吊下。

Due to the limitation of the shape and position of the underbody, it is often not enough space to remove the gearbox directly from the rear of the engine. The reliable way is to hang the gearbox from the vehicle together with the engine.

把自動變速箱拉離發動機時，應該沿著軸向拉動，克伴以繞軸線的順和反方向轉動，但不得上下左右擺動，以免損壞自動變速箱輸入軸與液力耦合器或變矩器連接比分的表面狀況與配合。

When the automatic transmission is pulled away from the engine, it should be pulled along the axial direction and rotated along the axis in the opposite direction. However, it is not allowed to swing up, down, left or right, so as to avoid damaging the surface condition and matching of the automatic transmission input shaft and the hydraulic coupling or torque converter.

后期解體與裝合

Later disintegration and assembly

首先準備好工具及盛放各類零件的小盒子，在干凈平整的操作臺上進行解體，從前部油泵開始，從前至后，由外向里逐步進行，并做好記錄。

First of all, prepare the tools and small boxes for holding all kinds of parts, and disassemble them on a clean and flat operation platform. Start from the front oil pump, from front to back, from outside to inside step by step, and make records.

在拆卸的時候，一定要記住不能用撬棍和鐵器直接敲打，因自動變速箱殼體大多數用鋁合金鑄成，在拆卸液控閥體是防止上下閥體分離時滾珠、卡環等掉地，要準確記住正確位置，拆卸單向離合器要注意正確配裝方向，裝合時不能顛倒，零件拆卸后應用汽油洗凈，確保各元件的清潔。

When disassembling, it is necessary to remember that it is not allowed to directly knock with crowbar and iron ware, because most of the automatic transmission case shells are made of aluminum alloy. When disassembling the hydraulic control valve body, it is necessary to prevent the ball and snap ring from falling off when the upper and lower valve bodies are separated. Remember the correct position accurately. When disassembling the one-way clutch, pay attention to the correct assembly direction, and do not reverse when assembling. The parts should be cleaned with gasoline after disassembly, Make sure that the components are clean.

自動變速箱出現故障大多數是由于車主使用不當造成的，部分車主總是認為自動變速箱油不需要更換、自動變速箱進水也不需要理會，導致變速箱的損傷越來越大，甚至報廢。

Most of the failures of automatic transmission are caused by improper use of vehicle owners. Some car owners always think that the oil of automatic transmission does not need to be replaced and the water in the automatic transmission does not need to be paid attention to, resulting in more and more damage to the gearbox, or even scrapped.

為了保障廣大車主的行車安全，各位在平常行車中一定要正確使用車輛，一旦車子出現問題一定要及時送往維修公司進行檢查維修，以免造成大患！

In order to ensure the driving safety of the majority of car owners, you must use the vehicle correctly in the ordinary driving. Once the car has problems, you must send it to the maintenance company for inspection and maintenance in time, so as to avoid serious accidents!