完成土方工程的主要机械的之一就是推土机。借助于安装的操纵机构与推土装置完成自行式施工,主要用来清除积雪、构筑路堤、平整场地、回填基坑、开挖路堑、铲除障碍以及松散物料的堆积与铲运作业。其中履带式推土机的作业环境相当恶劣,因此它的转向制动系统随着使用时间的增加,容易导致故障的出现,推土机不能正常作业。本文主要就履带式推土机转向制动系统故障分析及维修构架展开讨论。 One of the main machinery for earthwork is the bulldozer. The self-propelled construction is completed by means of the operating mechanism and the earth-moving device. It is mainly used for clearing snow, constructing embankments, leveling the site, backfilling the foundation pit, excavating and cutting, removing obstacles and storing and shoveling loose materials. One crawler bulldozer operating environment is very harsh, so its steering brake system with the use of time increases, easily lead to failure, bulldozers can not work properly. This article mainly discusses the failure analysis and maintenance framework of the steering brake system of crawler bulldozer.