自動(dòng)變速箱是與手動(dòng)變速箱相比，可以根據(jù)發(fā)動(dòng)機(jī)的變速自動(dòng)更換的設(shè)備。汽車(chē)自動(dòng)變速箱常見(jiàn)的有液力自動(dòng)變速箱(簡(jiǎn)稱(chēng)AT)、機(jī)械無(wú)級(jí)自動(dòng)變速箱(簡(jiǎn)稱(chēng)CVT)、電子控制機(jī)械自動(dòng)變速箱(簡(jiǎn)稱(chēng)AMT)三種類(lèi)型。自動(dòng)變速箱維護(hù)要點(diǎn)分析。

An automatic transmission is a device that can automatically shift gears according to the engine speed, as opposed to a manual transmission. There are three common types of automatic transmissions for automobiles: hydraulic automatic transmissions (abbreviated as AT), mechanically continuously variable automatic transmissions (abbreviated as CVT), and electronically controlled mechanical automatic transmissions (abbreviated as AMT). Analysis of the key points of automatic transmission maintenance.

1拆卸前的準(zhǔn)備工作。

1. Preparations before disassembly.

2從車(chē)上拆下變速箱。

Remove the transmission from the vehicle.

3變速箱的拆卸和組裝。

Dismantling and assembly of the gearbox.

拆卸前的準(zhǔn)備工作。

Preparations before disassembly.

調(diào)查變速箱的型號(hào)，向零部件供應(yīng)商了解該型號(hào)的變速箱零部件的供應(yīng)狀況，如果至少不能消耗零部件和建議更換零部件，請(qǐng)不要立即拆卸。對(duì)于罕見(jiàn)的車(chē)型，這一點(diǎn)尤為重要。一般不要先拆卸，找到損壞的零件后再找零件。這往往會(huì)導(dǎo)致附件困難、密封圈、墊片等破損而無(wú)法恢復(fù)的尷尬局面。

Investigate the model of the gearbox and inquire with parts suppliers about the supply status of gearbox parts for that model. If the parts are at least consumable and must be replaced, please refrain from dismantling immediately. This is particularly crucial for rare vehicle models. Generally, do not dismantle first and then search for parts after finding the damaged ones. This often leads to awkward situations where accessories, seals, gaskets, etc. are damaged beyond recovery.

放干變速箱機(jī)油，卸下優(yōu)盤(pán)，仔細(xì)檢查殘油種類(lèi)的雜質(zhì)部分。一般來(lái)說(shuō)，深棕色或黑色粉末是離合器片磨損，明亮的白色金屬粉末是油泵，單個(gè)離合器，齒輪機(jī)構(gòu)磨損。這可以進(jìn)一步驗(yàn)證原判斷的正確性

　　從車(chē)上拆下變速箱。

Drain the transmission oil, remove the USB drive, and carefully inspect the impurities in the residual oil. Generally speaking, dark brown or black powder indicates wear on the clutch disc, while bright white metal powder indicates wear on the oil pump, individual clutches, and gear mechanism. This can further verify the correctness of the original judgment. Remove the transmission from the vehicle.

由于車(chē)身底板的形狀和位置受到限制，從發(fā)動(dòng)機(jī)的后部直接拆下變速往往空間不足。可靠的方法是和發(fā)動(dòng)機(jī)一起從車(chē)上吊下來(lái)，這種方法需要增加很多輔助工作，發(fā)動(dòng)機(jī)本身也需要拆卸檢查時(shí)采用

　　單獨(dú)檢查發(fā)動(dòng)機(jī)時(shí)，松開(kāi)發(fā)動(dòng)機(jī)后支撐，從發(fā)動(dòng)機(jī)后部掉落，從變速箱上部的空間中騰出，有助于拆卸

　　將變速箱拉離發(fā)動(dòng)機(jī)時(shí)，沿軸向拉動(dòng)，可以沿軸線的順和反方向旋轉(zhuǎn)，但不得上下左右擺動(dòng)，以免損壞變速箱輸入軸和液力耦合器或變矩器連接部分的表面狀況

Due to the limited shape and position of the vehicle's floor pan, there is often insufficient space to remove the transmission directly from the rear of the engine. A reliable method is to lift the engine and transmission together from the vehicle, but this approach requires a lot of additional work, and the engine itself also needs to be disassembled for inspection. When inspecting the engine separately, loosen the engine's rear support, drop it from the rear of the engine, and free up space from the upper part of the transmission, which facilitates removal. When pulling the transmission away from the engine, pull it axially, and it can be rotated in both directions along the axis, but it must not be swung up and down or side to side to avoid damaging the surface condition of the transmission input shaft and the hydraulic coupler or torque converter connection part