How often it is necessary to make the collapse — convergence by car.

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The collapse and alignment are the parameters for which you must follow. It is important to control the parameters ruled for the sake of high-quality handling machine. And also for the sake of maintaining the service life of tires.

Since the parameters must be monitored, it goes without saying there is a frequency of checking and setting parameters to anew. When and what to do this will be told below.

Alignment is a value that is more often measured in millimeters, less often in degrees. Although actually convergence is all the same angle between the two components.

The first component is the direction of the wheel movement, the second is the rotation plane of the wheel. Most often, that of course it is more correct to carry out the total alignment of both wheels on a single axis.

Positive convergence indicates the stability of the car at high speed. But this option deprives the car maneuverability, that is, there may be problems on turns.

Negative convergence contributes to better manageability, but here all the errors will be very sensitive. The appearance of such an effect as the «beating» of the steering wheel is possible.

The collapse is also an angle, the angle between the rotation plane and the vertical axis of the wheel. Simply put, we are talking about the slope of the wheel to the plane of the roadbed. Here there is a negative collapse and positive.

Negative talks about the slope of the top of the wheel inward. The positive, respectively, will talk about the slope outward. As the collapse of a full-fledged angle, it is measured in degrees.

Another value is Caster. About him somehow they say a little, it is always necessary to check together with two previous values. Caster is the position of the wheels in the arches of the machine, relatively horizontal direct. Like the first two parameters, Caster affects the behavior of the car on the road.

Most often, the gathering variance is trying to fix when there is poor controllability or uneven and too fast wear of the tires. This can be called full and symptoms of the wrong parameters. Another faithful sign will be a tire squeal when turning, with even small speeds.

The indication to correct the situation will also be serious repair work with the suspension. As an example, you can call the replacement of steering. The same is the case with the lower transverse lever of the suspension.

Changing the height of the vehicle landing using special spacer the same will be an indication for adjusting the gathering-collapse.

Parameters need to be put in order if the machine began to behave on the road badly: the car can take off in any side, the control can be retarded, there is a difference in the radius of rotation in different directions, the steering wheel is badly returning after the rotation maneuver.

There are recommendations from automakers precisely for these values, according to which the gathering / collapse adjustment is recommended or over a year, or after 25 thousand km. Male. But these are common numbers. Much will depend on the quality of roads and driving style.

Calm, balanced riding for good road surface will significantly increase the resistance of the parameters. But dashing turns, bumps and speed will result in frequent check and adjust the parameters.

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