At this time, you should immediately grab the low gear, lower the throttle, use the engine idle speed to slow down, and then slowly step on the brakes; Make the tractor stop smoothly in a short time; Then check the shallow original painting and troubleshoot it. Otherwise, it will lead to accidents. Causes of sudden failure of tractor steering: ① The steering wheel fastening nut and positioning key are loose, and the steering wheel cannot drive the steering shaft to rotate. ② The upper and lower bearings of the steering gear worm are damaged and stuck, or there is a foreign body stuck in the steering gear worm, which suddenly stops the steering wheel. (3) The steering arm touches the fixing bolt of the frame or steering gear, and the steering wheel cannot rotate after turning to an angle. (4) Brake pedal, pulley cover of small four wheels, etc. Relating to the steering arm, which prevents the steering wheel from turning to a certain angle or returning. ⑤ The steering knuckle kingpin and bushing are severely burned and stuck. ⑥ The relevant coupling parts of steering transmission mechanism, such as ball pin, steering arm and steering knuckle arm, are loose or broken. ⑦ The tractor axle shaft suddenly broke.