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1台配装道依茨BF6M1013EC型发动机的20 t压路机,工作48 h后出现严重烧机油、冒蓝烟现象,并伴随功率下降。用缸压表测量缸压仅为2 MPa,明显低于标准值3.0~3.8 MPa。由此判断此故障的原因是活塞、活塞环与缸套磨损。拆解空气滤清器与增压器连接管路,发现其内部积聚大量灰尘。拆开空气滤清器,发现滤芯密封面压痕不
A 20 t roller equipped with a DEUTZ BF6M1013EC engine showed severe burn-in oil and blue smoke after 48 h of operation, accompanied by a drop in power. Cylinder pressure gauge with cylinder pressure measurement is only 2 MPa, significantly lower than the standard value of 3.0 ~ 3.8 MPa. To determine the cause of this failure is the piston, piston rings and cylinder liner wear. Disassemble the air filter and the supercharger to connect the pipe and find a lot of dust accumulates inside. Open the air filter and found that the filter seal surface indentation not