1. failure phenomenon

After steering, the steering wheel of Baotou North Ben heavy truck can't be automatically turned back, so the driver can't perceive the real-time state of the steering wheel.

2. cause of failure

(1) the incorrect positioning parameters of the front wheel of Baotou North running heavy steam parts are incorrect, such as the inclination angle of the main pin, the inclination angle of the main pin, the angle of the front wheel and the front wheel front beam, which all cause this phenomenon.

2. Baotou North Ben heavy truck fittings steering system connection parts loose and serious.

3. analysis and diagnosis

Check the connection points of the steering system, such as normal, adjust the front wheel steering parameters with the four wheel locator.