11.1.10. General information on installation of corners of wheels and angles of rotation
Installation of corners of forward wheels is an adjustment which is led on forward wheels in order that they settled down under the correct corner in relation to a suspension bracket and to the earth. If corners of forward wheels are incorrectly established, it will affect not only a steering, but also will increase wear of tires. Usually on forward wheels disorder of wheels, a corner of a cross-section inclination of an axis of turn and a convergence (divergence) of forward wheels are measured. The convergence (divergence) of forward wheels is regulated on all models; the corner of a cross-section inclination of an axis of turn is not regulated. Disorder of wheels is regulated only by replacement of the top support of a rack of a suspension bracket with special ekstsentrikovy model. The convergence (divergence) is regulated and on back wheels, but only by replacement of external plugs of the longitudinal lever by special ekstsentrikovy plugs.
Installation of corners of forward wheels is very exact work for which correct performance are required the difficult and expensive equipment. Therefore the mechanics with necessary tools is best of all to cause for carrying out this procedure. However, in order that you understood this process better and better cooperated from a workshop which is carrying out it, we will give here the main idea of that it itself(himself) represents.
The corner of a convergence (divergence) is a deviation of wheels inside. The purpose of installation of a certain corner is ensuring their parallel rotation. If the car has a zero corner of a convergence, the distance between forward edges of wheels will be equal to distance between back edges of wheels. The real size of a corner of a convergence is usually very insignificant. The corner of a convergence of forward wheels is regulated by the provision of a tip of steering draft of rather steering draft. The corner of a convergence of back wheels can be regulated, only having established special ekstsentrikovy plugs on an external support of the longitudinal lever. Incorrectly established corner of a convergence will result in non-uniform wear of tires because they will scrape a road surface.
Disorder of wheels is a deviation of wheels from a vertical axis if to look at the car in front or behind. If wheels are rejected outside in the top part, such disorder is called as positive (). If wheels in the top part are rejected inside, disorder is called as negative (-). The size of a deviation is measured in degrees from the vertical line, and this size is called as a corner of disorder of wheels. This corner influences number of racetracks of protectors which adjoin to the road and is compensated by changes in suspension bracket geometry when the car turns or moves on the rough road.
The corner of a cross-section inclination of an axis of turn is a deviation of an axis forward rotary шкворня from a vertical. The deviation in the top part is a positive corner, and a deviation forward - a negative corner of a cross-section inclination of an axis of turn back. This corner is not regulated on the cars described in this Management.