(1) causes and analysis
Baotou North heavy duty truck steering knuckle bushing and main pin clearance is too large. Due to bad lubrication, when the main pin and bushing when the gap is too large, the destruction of the kingpin inclination angle and self righting effect, and reduce the camber, the front wheel and the kingpin axis vertical angle or become a state so that the front wheel inside, and make the wheels turn the steering resistance increase can not automatically return back positive.
(2) diagnosis and treatment
Diagnosis: to make the vehicle in a straight line position, visual inspection or testing whether there are two front tilt angle. If there is no camber when lifting the front axle, the side of the wheel off the ground, the wheel will be off the ground, if the tire top obvious shift in the bottom shift, namely main pin and bush with clearance is too large or the main pin and the main pin hole matching.
Processing: replace the bushing and according to the technical requirements of the hinge.
(3) other reasons
1 the front axle is bent and twisted to make the pin hole angle change.
2 Baotou North heavy truck parts before the spring plate spring is poor, so that the main pin back angle change.
3 steering knuckle due to overload deformation, so that the front wheel camber change.
4 front wheel bearing is too tight.
5 Baotou North heavy truck parts before the spring plate U bolts loose.