How To Understand How a Wheel Alignment Machine Works

Buying a car does not end with spending the initial money on the purchase. It entails maintenance that has to be taken seriously. Paint will fade, scratches may surface, dents may happen but something that is critical is when steering problem happens. A wheel alignment machine works to make this happen.

The wheel alignment machine adjusts the wheels in a manner where they are perfectly coordinated in order for the car to work at its best. It is used to avoid tire wear or other automotive alignment problems. For example, a truck machine can sometimes be quite heavy and if the wheels are not properly aligned, then it can cause steering problems resulting in the need for brake lathes or end up in a serious accident. A plant machine can do damage to crops instead of working its best.

To understand wheel alignment, one needs to know about the following most vital information:

  • Camber - the measurement of the wheel’s angle in degrees. It can be positive, if the wheel is angling from the focal point of the car. It can be negative, if it slants towards the center.
  • Toe - determines the closeness of the wheels. Usually the wheels are closest if they are up front.
  • Caster - gives off the measurement of the swivel followed by the direction of the vehicle on the side when the steering wheel is turned.
  • Steering axis inclination - measurement of the slant when one looks at it from the front.
  • Scrub radius - the distance where steering axis inclination crosses the land and the middle of the wheel.
  • Included angle - the slant between the steering axis inclination and the camber.
  • Riding height - influences the efficiency of the camber and toe.
  • Setback - when the position of the front tire against the other tire is too far back.
  • Thrust angle - where the tires at the back guide the middle part of the vehicle.
  • Steering center - the effect that comes when the driver takes on a straight, flat route.

When a repairman uses a wheel alignment machine he usually does the four wheel alignment type. Tools will be placed on all the tires. It can be that only the front tires are adjusted or all of them. He would check first for camber and steering problems. Aligning without checking for such will result in instability. Using a wheel alignment machine ensures that the vehicle will travel the roads in a straight line when steered straight ahead. He makes sure that there is positive caster. Toe setting is critical.

Before setting the machine, the technician will take into consideration the speed of the vehicle. The machine makes the center line the point of reference by putting all the tools on all the wheels. The steering axis inclination finds out the measurement and sees if it affects the vehicle’s speed. To avoid the quick wearing of a tire, the riding height should be one inch viewing from front to back and the sides. Some equipment will gauge set back and even let one know what is not taken as a good score.

These are some major points in wheel alignment. Wheel alignment machines measure the correct swivel or direction of a vehicle. Have your vehicle checked regularly do not overlook wheel alignments for it can make a huge difference in the way one travels.


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