编辑手语：两张框图对于分析推土机无力的故障方便、快捷。推土机推土无力的原因可根据图1和图2进行判断。按图1首先检查万向节转动情况，若起动推土机后稍稍加大油门，万向节转速升高很快，达到1200r／min以上，说明万向节情况正常；如果转速升高很慢或转速无法提高，就属于不 Editing sign language: The two block diagrams are convenient and quick for analyzing the failure of a bulldozer. The reason why bulldozers do not push bulldozers can be judged based on Fig. 1 and Fig. 2 . According to Figure 1, first check the universal joint rotation, if you start the bulldozer after slightly increasing the throttle, universal joint speed increased rapidly, reaching 1200r/min or more, indicating that the universal joint condition is normal; if the speed increase is very slow or speed Can't improve, it belongs to not