TOYOTA A40D自动变速器不升档的故障排除及原因分析

Why Does An Automatic Transmission Fail to Shift Up

介绍了TOYOTA A40D自动变速器的结构和工作原理,以及自动变速器液压控制自动变速的原理。重点分析了TOYOTA A40D自动变速器不升档的原因,结合具体维修过程,制定了正确的维修工艺,迅速排除了在D档位不能自动升档的故障。

The construction and fundamentals of an automatic transmission for the TOYOTA car and the principle of hydraulically controlled automatic shift are introduced in this paper. After with the emphasis on analysing the causes of failing to shift up in the automatic transmission,and deal with the correct maintenance and repair processes,lay down the available repair procedure. The trouble of the transmission,failing to shift up from D position,has quickly been eliminated.