FCAR FD505 Wheel Alignment System User Manual
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when turning.
D.
The vehicle is snaked or deviated to left and right in the driving direction, and the
body is unstable and so on.
E.
There is a phenomenon of tire abrasion on the front or rear wheels.
F.
The tire is single-sided, irregular, blocky or feather-like abrasion.
G.
After installing new tires or after crash accident repair, and after updating new
suspension or steering related accessories.
1.2
Definition of wheel alignment
In order to ensure the stability of the straight-line driving and the lightness of
handling, and to reduce the wear of automobile tires and other parts, many factors must be
considered to determine the angle between the wheel and the ground, the installation
between the steering wheel, the steering knuckle and the front axle with the frame should
maintain a certain relative position. This positional installation is called steering wheel
alignment, also known as front wheel alignment.
Previously used wheel alignment referred to front wheel positioning, and now
vehicles require rear wheel positioning in addition to front wheel positioning. The front
and rear wheel positioning of the vehicle is to detect the angular position relationship
between the car frame, the suspension member, the wheel, and the front and rear wheels in
the direction of the X, Y and Z axis. After the vehicle is accurately measured by a
dedicated instrument, the measurement result is compared with the original design
standard parameters and adjusted to the standard range to meet the original design
requirements to achieve the desired vehicle driving performance.
1.3
Product configuration
The general configuration of the FCAR 5D four-wheel alignment system is shown in
the following figure.
