当拖拉机的Κ向、制动、传动系统及悬挂Π置等工作正常时,驾驶员手握方向盘感觉很轻松,有时可以短暂松手,车辆仍能直线行驶。如果上述Π置发生故障,驾驶员操纵方向盘时将会感觉到异常。(1)车辆行驶中手发麻。当车辆以中速以上行驶时,底盘出现周期性的响声或方向盘强烈振动,导致驾驶员手发麻。这是 When the tractor Κ direction, braking, transmission and suspension Π home and other work properly, the driver’s hand grip the steering wheel feel very relaxed, and sometimes can let go for a short time, the vehicle can still be a straight line. If the above Π home fails, the driver will feel abnormal steering wheel. (1) vehicle hand numb. When the vehicle is driving at medium speed, the chassis has a periodic noise or strong vibration of the steering wheel, causing the driver’s hand to become numb. this is