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我大队一台ZL４０型装载机在训练过程中，发现踩下制动踏板后，明显感觉制动滞后，不能立即减速和停车。由于该机采用气顶油双管路钳盘制动系统，所以首先检查气路情况。启动发动机后，发现气压表的压力长时间达不到规定值，经了解气压表刚刚更换不久，这就排除了气压表读数不?
I brigade ZL40 loader in the training process and found that depresses the brake pedal, the obvious feeling of braking lag, can not immediately slow down and stop. As the machine adopts gas cap double pipe caliper brake system, so first check the gas situation. Start the engine and found that the barometer pressure for a long time less than the required value, the barometer just changed soon after learning, which ruled out the barometer reading?