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(1)故障现象农用运输车直线行驶良好，转弯时后桥中有响声。 (2)故障原因产生上述故障的原因主要有：①行星齿轮磨损过大；②球形垫圈磨损变薄；③差速器壳十字轴孔磨损松旷；④十字轴磨损过大；⑤十字轴与行星齿轮粘结在一起；⑥半轴齿轮花键槽与半轴花键齿磨损过大。
(1) Fault phenomenon Agricultural vehicles traveling straight, a sound when the bridge after the turn. (2) Causes of failure The main causes of the above failures are as follows: (1) planetary gear wear is too large; (2) ball washers wear and tear; (3) differential cross-shaft bore wear Songkuang; (4) cross shaft wear is too large; Planetary gear together; ⑥ semi-shaft gear spline groove and half-shaft spline gear wear too much.