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1.方向盘自由转角变大,方向盘发飘此时,采用正常的调整方法调整不奏效,严重影响了转向器及其它机件的使用寿命,同时还危及行车安全。分析其原因有: (1)操作方法不当导致转向器上的2只7604圆锥滚子轴承及转向螺母、扇形齿轮等过早磨损,间隙增大。HZ-12A型拖拉机采用螺杆螺母循环球式转向器,其转向螺杆上连方向盘,下由2只7604轴承安装在转向器壳体上。有些机手经常打死方向盘,或高速行驶死握方向盘,这给转向器壳体造成冲击力,使转向器中扇形齿轮、转向螺
1. Free steering wheel becomes larger, the steering wheel floating at this time, the use of normal adjustment method does not work properly, seriously affecting the steering gear and other parts of the service life, but also endanger traffic safety. Analysis of the reasons: (1) improper operation led to the steering gear on the two 7604 tapered roller bearings and steering nuts, sector gear premature wear, clearance increased. HZ-12A type tractor with screw and nut recirculating ball steering gear, the steering screw with the steering wheel, the next two 7604 bearings installed in the steering gear housing. Some of the hands often kill the steering wheel, or high-speed driving the hand grip the steering wheel, which gives the steering gear shell impact, so that the steering gear fan, steering screw