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The feeling and fault of the tractor's steering wheel while driving
When the steering, braking, transmission system, and suspension devices of tractors (including automobiles) work normally, it is easy for the driver to hold the steering wheel. Sometimes the driver can loosen his hand for a short time and the vehicle can still run straight. If the above device malfunctions, the driver will feel abnormal when manipulating the steering wheel. First, the hand is numb during driving. When the vehicle is traveling at a speed above mid-speed, the chassis may experience periodic sounds or strong steering wheel vibrations, causing the driver's hands to numb. This is due to the destruction of the directional drive balance and excessive wear of the drive shaft and its splined sleeve. Second, heavy and laborious steering. The reasons are as follows: (1) The rolling bearings and sliding bearings in all parts of the steering system are over-tightened and the bearings are poorly lubricated; (2) The ball head pins of the steering longitudinal and die tie rods are over-tightened or lack of oil; (3) Steering shafts and Casing bending causes seizure; (4) The front wheel is not properly tuned; (5) The front axle or frame is bent and deformed; (6) The tire pressure is insufficient, especially the front tire. Third, the steering wheel is difficult to manipulate. When driving or braking, the direction of the vehicle is automatically biased toward the side of the road, and the steering wheel must be firmly held to ensure straight running. The causes of vehicle deviation are: (1) the front wheel specifications or air pressure on both sides are inconsistent; (2) the front wheel kingpin caster or wheel camber on both sides are not equal; (3) the front wheel hub bearings on both sides The gap is inconsistent; (4) The degree of curvature or elasticity of the leaf springs on the two sides is inconsistent; (5) The wheelbase of the left and right sides has a large difference; (6) The wheel brake gap is too small or the brake drum is out of round, causing the side brake to issue a card, Brakes are delayed; (7) The vehicle is loaded unevenly. Fourth, the direction of hair floating. When the vehicle reaches a certain high speed, there are some reasons why the steering wheel trembles or swings: (1) the balance of the front wheel assembly is damaged due to shimming the tire or rim repair; (2) loose parts of the transmission bearing assembly; 3) The total successful balance of the drive shaft is destroyed; (4) The shock absorber fails and the leaf spring stiffness is inconsistent; (5) The steering system parts wear loose; (6) The front wheels are improperly aligned.