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

在拆卸變速箱之前一定要查找?guī)齑媸欠裼袑?yīng)的自動變速箱型號，在不能保證起碼的易損件和必?fù)Q件都充沛的情況下，不建議立即拆卸解體。

Before disassembling the transmission, it is necessary to check whether there is a corresponding automatic transmission model in stock. It is not recommended to disassemble the transmission immediately when there are not enough vulnerable parts and necessary replacement parts.

可先放干變速箱機(jī)油，卸下優(yōu)盤，檢車殘油品種的雜質(zhì)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(jī)構(gòu)磨損，從而進(jìn)一步判斷車子的故障。

You can drain the gearbox oil first, unload the USB flash disk, and check the impurity part of the residual oil. Under normal circumstances, if there is dark brown or brown powder, the clutch plate is worn, and the bright white metal powder is worn by 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(fā)動機(jī)后部拆下變速箱往往顯得空間不夠，可靠的辦法是連同發(fā)動機(jī)一同從車上吊下。

Due to the limitation of the shape and location of the car body, it is often not enough space to remove the gearbox directly from the rear of the engine. A reliable way is to lift the gearbox from the car together with the engine.

把自動變速箱拉離發(fā)動機(jī)時，應(yīng)該沿著軸向拉動，克伴以繞軸線的順和反方向轉(zhuǎn)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 in both the forward and reverse directions around the axis, but it should not swing up, down, left and right, so as not to damage the surface condition and fit of the connection between the automatic transmission input shaft and the hydraulic coupling or torque converter.

后期解體與裝合

Later disassembly and assembly

首先準(zhǔn)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(jìn)行解體，從前部油泵開始，從前至后，由外向里逐步進(jìn)行，并做好記錄。

First, prepare tools and small boxes for various parts, disassemble them on a clean and flat operation platform, start from the front oil pump, from front to back, from the outside to the inside, 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(shù)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(huán)等掉地，要準(zhǔn)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(yīng)用汽油洗凈，確保各元件的清潔。

When disassembling, remember not to knock directly with crowbar and iron, because most of the automatic transmission shell is made of aluminum alloy. When disassembling the hydraulic control valve body, it is necessary 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. When disassembling the one-way clutch, pay attention to the correct assembly direction. Do not reverse it when assembling. Clean the parts with gasoline after disassembly, Make sure the components are clean.