自卸式攪拌車的出現和使用，可以為各種類型的工程施工提供許多方便，這些都是自卸攪拌車的功用，在一定程度上提高了設備的使用效率。用戶要保證水泥自動攪拌車的使用性能，其中一個重要配件就是變速器換擋機，每一種配件使用一段時間，都會出現一些問題，損壞后該怎么修理呢？
The appearance and use of dump mixer can provide many conveniences for various types of engineering construction. These are the functions of dump mixer, which improve the use efficiency of equipment to a certain extent. Users want to ensure the performance of the automatic feeding mixer, one of the important parts is the transmission shift machine, each part used for a period of time, there will be some problems, how to repair the damage?

1、攪拌車離合器損壞的原因動力換擋變速器離合器接合時，液壓油的壓力克服彈簧力壓緊摩擦片。隨著液壓油壓力的升高，摩擦片與金屬盤接觸并逐漸壓緊，使離合器將飛輪動力平穩(wěn)地傳遞到變速器輸入軸。

2、攪拌車離合器活塞密封性的檢測裝載機行走無力或油溫過高時，就需要判斷是離合器活塞密封不嚴還是油壓不足引起的，但常規(guī)檢測手段有時很難斷定是哪個原因引起故障，尤其是在水泥自動攪拌車無動力的情況下，檢查組裝好的變速器總成的各密封環(huán)就更困難了。此時，可采用氣壓閥進行測試。
2, automatic feeding mixer truck clutch piston sealing detection loader walking to or when the oil temperature is too high, you need to determine is the clutch piston seal is lax or low oil pressure, but the conventional detection method which is sometimes difficult to determine causes of failure, especially in the case of no power, check the sealing ring of the assembled transmission assembly is even more difficult. At this point, a pneumatic valve can be used for testing.