Maintaining and adjusting truck wheel alignment is crucial for ensuring safety and operational efficiency. According to an article on VnExpress, after a period of use, the suspension and steering systems of trucks are prone to wear and tear, leading to misalignment of the wheel angles. So, when is adjustment necessary, and what parameters should be noted? This article will provide detailed answers to these questions, helping you better understand “where only trucks can set wheels” as analyzed by VnExpress.
Key Truck Wheel Alignment Angles
VnExpress emphasizes that wheel alignment adjustment should only be performed after addressing wear and tear issues and damage to the suspension and steering systems. The three basic parameters that need to be checked and adjusted include: camber angle, caster angle, and toe angle.
Camber Angle: Wheel Tilt
Camber angle is the angle of the wheel’s vertical tilt relative to the road surface. Ideally, the wheel should be perpendicular to the road to optimize contact. However, when a vehicle turns, centrifugal force causes the body to lean, affecting the camber angle. VnExpress notes that the camber angle is usually adjusted for the front wheels and sometimes for the rear wheels. Incorrect camber angles, especially on the rear wheels, can lead to rapid wear of vehicle components. 
Illustration of camber angle
Caster Angle: Steering Axis Tilt
Caster angle is the angle of the steering axis relative to the vertical plane. VnExpress explains that the caster angle affects stability when the vehicle is moving straight and the steering return ability after turning. This angle is set for the steering wheels, helping the vehicle operate more stably. 
Illustration of caster angle
Toe Angle: Wheel Alignment
Toe angle is the angle formed by two wheels on the same axle relative to the direction of vehicle movement. According to VnExpress, the toe angle directly affects tire wear and vehicle handling. Excessive toe-in will cause rapid tire wear, while excessive toe-out will affect vehicle stability. 
Illustration of toe angle
Conclusion
Adjusting truck wheel alignment is an important part of the maintenance process, helping to ensure safety and operational efficiency. Through the VnExpress article, we better understand the importance of checking and adjusting camber, caster, and toe angles. By understanding and applying this knowledge, truck users can extend tire life, minimize maintenance costs, and ensure safe operation. “Where only trucks can set wheels” is not just the road surface, but also the proper attention to truck wheel alignment maintenance and adjustment.
