twin busch TW 115, Инструкция по установке, эксплуатации и обслуживанию

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7.2.6 Thrust angle
The included angle is the angle between the center line of the wheel and the axes of the fall, usually the geometric sum of
camber and SAI.
7.2.7 Toe-out when cornering
Turning on cornering is defined as the difference of the steering angle (track difference angle) between the two front wheels
turned by 20 ° to the left or right.
7.2.8 Thrust angle
Definition: The angle between the vehicle centerline and the vehicle's axial thrust line.
While driving, the front and rear wheels should pull to the same side if the driving angle is not zero.
If the axle feed line is to the left of the vehicle center line, the driving angle is positive, otherwise negative.
The driving angle causes the rear of the vehicle to pull to one side.
For the vehicle to go straight ahead, the front wheels must be turned in the direction of the axial thrust line.
If the driving angle is not compensated for the front lane, the steering wheel must be turned to one side when driving straight
ahead.
If you can adjust the rear track, the driving angle can be reduced to almost zero.
The direction of the axial thrust line is the current direction of travel of the vehicle, which is determined by the rear lane. If the
direction of the axle thrust line does not coincide with the geometric center line of the vehicle, the steering wheel must be
turned degrees to go straight ahead, causing a tilt of the steering wheel is caused. This is called lateral rear wheel deviation.
Ignoring the axial thrust line the correctness of the survey cannot be ensured.
This is the main reason for steering wheel deviations.