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Shock absorbers: types, construction, purpose, repair and equipment necessary for this


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Bad shock absorbers – dangerous driving. The vehicle is due to their failure poorly manageable, the wheels have little traction with the road surface. This also leads to a malfunction of the brake system. The main task, which is carried out shock absorber in car, is to control and hold the wheel while driving. This avoids losing control of the vehicle.

Repair shock absorbers racks on cars

Shock absorbers are also designed to damp vibrations that occur when driving on an uneven surface, off-road and when the speed changes. Springs do not always cope with the load. Consequently, the safety of the vehicle and passengers directly depends on the shock absorber. Therefore, it is necessary to pay special attention to the selection of these parts of the chassis of the car.

The structure and types of shock absorbers

Shock absorbers consist of a cylinder with a piston inside and a valve mechanism. The combination of such elements in this system allows you to damp the vibrations in a timely manner and prevent the car from swaying violently.

Varieties by the principle of action

The most common are hydraulic and gas shock absorbers:

  • Hydraulic shock absorbers put out the vibrations of the elastic elements of the suspension using oil that flows from one tank to another through a valve system.
  • Gas shock absorbers they also use liquid, but it is preliminarily “squeezed” by a small volume of gas.

Varieties in structure

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  • Two-pipe .
  • Single-tube with gas pressure.
  • Two-pipe with gas pressure.

Single-tube have advantages, because the liquid in this device does not overheat. They are also practical: the housing can be installed up and down.

Two-pipe ones consist of two cavities, one has a piston with valves, and the second is necessary to partially fill it with oil and air. If they are absent or too few in design, then the shock absorber stops working or is compressed without resistance. In the event of such malfunctions, it is necessary to contact a car service or service station that has equipment for repairing shock absorbers. This device will restore the performance of parts.

Diagnostics of malfunctions of shock absorbers and the main causes of their failure

Checking the fault is quite simple:

  • If during driving the car does not shake and extraneous noise is not heard, then the shock absorbers function normally.
  • If in motion there are problems with braking, smooth running, fitting into a turn, and also the car cannot gain a certain speed, then it is necessary to pay attention to the condition of the shock absorbers. Such problems can lead to an accident caused by an increase in wheel slip vibration.

Most often, the main cause of the breakdown may be leakage of fluid through a damaged seal. This can happen in such cases:

  1. Wear of the sealing material due to friction.
  2. Sudden change in temperature.
  3. Dirt and dust are trapped in the shock absorber.
  4. Gas or air are trapped in the shock absorber.

To avoid breakdowns, it is necessary to seek the help of professionals in a timely manner, who will make a diagnosis and restore the parts if necessary. This can help special nozzles that are used to repair gas-oil shock absorber. They allow you to pumping gas, add fluid, and also control the pressure process.

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Equipment for repairing shock absorbers is a special device that will allow specialists to restore the main part of the suspension quickly and efficiently.

In total

The oil and gas parts of the undercarriage are important elements in the design of the car. They are responsible for its performance, safety during movement. Today, A-PROFI Company provides an opportunity to protect yourself and your car by manufacturing quality restoration equipment that meets all the requirements of modern automotive industry. You can study or buy equipment for the restoration of shock absorbers on our website.

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