collapse is the inclination of the wheel in a vertical plane relative to the centerline of the vehicle. It can be positive if the wheels are tilted outward or negative if the wheels are tilted inward. The camber angle mainly affects the uniformity of front tire wear. If the camber of one wheel is positive and the other is negative, then the car will pull to the side when driving in a straight line.
Convergence - the difference in distance between the front and rear edges of the wheels. Positive toe means the wheels are closer together at the front than at the rear when measured at wheel midpoint height. Negative toe means that the wheels are further apart at the front than at the rear.
Lateral inclination of an axis of turn of a wheel is the angle between the axis of inclination of the steering knuckle and the vertical drawn through the wheel attachment point, looking in the longitudinal direction of the vehicle.
Due to the camber angles and the transverse inclination of the axis of rotation, the points of contact of the wheels with the road are located closer to the axis of the steering knuckle. This supports the so-called "running shoulder", the easier it is to drive. Also, bumps from uneven surfaces are less transmitted to the steering.
The angle of the longitudinal inclination of the axis of rotation. The axis about which the wheel turns is placed in space so that its lower part is directed forward. Such an angle of longitudinal inclination is called positive. With a positive value of the angle, the self-return of the wheel to the middle position after the turn is improved.
Toe adjustment
1. Set the front wheels straight. There are markings on the steering shaft and steering gear case. Install the steering so that the indicated markings match.
2. Loosen the clamp nut on each tie rod (arrow illustration). Adjust the toe by turning the left and right tie rods. At the same time, turn the left and right steering rods by the hexagon by the same size. Make sure that the ball joints and boots do not twist when adjusting.
3. After finishing the toe adjustment, tighten the clamping bolts at the steering rods to 80 Nm.