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1.推土无力1台环卫推土机在进行摊平作业时I挡无力,并且伴有抖动现象,Ⅱ、Ⅲ挡工作正常。检查变速器油,油液高度在油尺刻度线中间位置,油位正常。该机变速器各挡位变速压力均设定为1.8～2.4 MPa,用4 MPa的压力表按图1所示测压口测量变速压力,测得I挡变速压力为0.4 MPa,Ⅱ挡、Ⅲ挡变速压力均为2.3 MPa。由此可知Ⅱ、Ⅲ挡的压力正常,而I挡的变速压力过低。
1 bulldozing weakness 1 sanitation bulldozers bulldozing in the work I am unable to work, and accompanied by jitter, Ⅱ, Ⅲ block work properly. Check the transmission oil, the oil level in the middle of the ruler scale line, the oil level is normal. The gearbox transmission gear pressure is set to 1.8 ~ 2.4 MPa, with 4 MPa pressure gauge measured pressure port as shown in Figure 1 to measure the pressure change, measured I gear speed pressure is 0.4 MPa, Ⅱ block, Ⅲ block Variable speed pressure is 2.3 MPa. It can be seen Ⅱ, Ⅲ block the normal pressure, and I block the variable speed pressure is too low.