Ｔ２０推土机的主离合器主要由主动部分、从动部分、移动套组件，液压助力器和小制动器组成，属于湿式多片非经常接合式，采用液压助力的操纵系统。 工作中有时会碰到主离合器失灵的现象，不仅降低工作效率，严重时还会影响施工进度。常见的有４种故障，其主要原因、判断和排除 The main clutch of the T20 bulldozer mainly consists of an active part, a driven part, a moving sleeve component, a hydraulic booster and a small brake. The main part of the T20 bulldozer belongs to a wet multi-piece non-regular engaging type and adopts a hydraulic boosting control system. Occasionally encountered in the work of the main clutch failure phenomenon, not only reduce work efficiency, but also affect the construction progress in serious cases. There are four common faults, the main reason for judgment and exclusion