Why does the computer chair lower itself?

Today life without a computer is impossible, such are the realities of our century. And such achievements of scientific and technological progress require certain conditions, for example, the presence of a computer desk and a special chair.

And so these interior items are exploited especially actively, breakdowns, alas, are not uncommon. Can you solve the problem yourself?

Design features

At first glance, these are all office chairs - twin brothers. In fact, there are major differences in design.

Let's consider what you should pay attention to.

1. Chair for the head. Five-beam cylindrical base, multiblock for adjusting the position of the back, the level of roll and the depth of the seat.
2. Armchair for employees. Multiblock for adjusting the height of the seat, the angle of the backrest, the height of the armrests. The model is lightweight.
3. Guest chair. Four legs, soft seat, comfortable backrest.

Yet despite the variety in the range, there are components found in most seats. In particular, these include:

• Five-beam cross. This is the support of the entire structure, it can be made of metal or plastic.
• Rollers. Attached to the edges of the base. They are made of polymeric materials or metal. The maximum number is five. A distinctive feature is the presence of a hinge and metal fasteners.
• A gas lift (also called a gas shock absorber) is a chair leg, which is responsible for the elasticity of the entire structure.
• Swing mechanism. Thanks to him, the chair takes a comfortable tilt angle and fixes the selected position. Due to the fact that the axle is mixed, a smooth swing is ensured.
• Piastra is a metal platform with a lever. Thanks to it, the height of the seat changes in relation to the crosspiece.
• Permanent contact. The unit that connects the backrest to the seat and is responsible for changing its position.

Breakdown options

A computer chair is a complex mechanism, and breakdowns, alas, are an inevitable reality.

Professionals identify several of the most common faults.

1. Broken crosspiece. This is a common problem with plastic crosspieces. If in your model the cross is made of metal, you have nothing to fear, they rarely break. In the risk zone of the plastic cross, the place of intersection of the beams.
2. Deformation of the rocking mechanism. Because of this problem, you are deprived of the opportunity to rest against the vertical and elastic backrest. If the backrest falls back, this indicates a malfunction of the position latches.
3. Breakdown of the gas lift. In this case, the office chair does not hold the specified height. Most often we are talking about the deformation of the pneumatic chuck. This part has a two-chamber structure, and each of the chambers is filled with air or gas. And if, when you press the lever, the mechanism does not work and does not fall, then, most likely, the piston, seal or other element of the system is faulty.

Breakage detection

If you do not consider yourself a professional, and you are unable to figure out what exactly the problem is, adhere to the following rules:

• If it is not possible to raise or lower the seat, the tip of the gas lift lever is faulty;
• The chair is difficult to move even on a flat surface - a wheel hub is broken or a retaining ring is missing;
• The chair tilts to the side - insufficient fixation of the fasteners, manufacturer defect, excessive wear of the back mechanism;
• The back of the chair is too mobile - the permanent contact is worn out;
• The structure has lost its stability - the gas lift or the swing mechanism is faulty.

Less significant, but requiring attention, malfunctions are as follows:

• Damage to the upholstery;
• Sagging of the foam filler;
• Breakage of wheels;
• Piastre deformation.

These problems can be solved only by complete replacement of deformed elements.

Do-it-yourself breakdown elimination

Making a high-quality repair of a computer chair is not as difficult as it might seem at first glance. Some skills, as well as special tools, will solve the problem even at home.

If you are puzzling over the question: the office chair does not hold the height, what should you do? The answer is simple, you need to change the gas lift. This is one of the few parts that cannot be repaired.

The procedure is as follows:

• Remove all external elements;
• Remove the outer casing;
• Dismantle the spring fastener from the seat;
• Remove bearings and all fixing elements;
• Remove the crosspiece and protective cover;
• Dismantle the faulty gas lift.

After replacing the gas lift, all elements are assembled, but in the reverse order. If you are afraid that you will forget exactly which element, from where it was filmed, you can record every action on the camera.

Rules for the operation of office chairs

In order for the chair to serve for a long time and not cause any inconvenience with its breakdowns, it is recommended to observe the following simple rules:

• The chair should be in a dry, well-ventilated area.
• If the chair for some reason was in a zone of low temperatures (for example, it was transported in winter), it cannot be used immediately, you need to give time for adaptation. The minimum time is 24 hours.
• During the assembly process, be very careful and careful, especially in relation to the screwed parts - do not strip the threads.
• Make sure that the load on the crosspiece is not excessive.

Experts remind that one chair is designed to be operated by one person. If it is used by a huge number of people, it will have dire consequences. You need to sit down on an office chair very carefully, avoiding sudden movements.

Armrests also need careful treatment. You should not press on them, much less sit down. It is better for overweight persons to purchase structures with metal elements.

The office chair can be repaired on your own without resorting to the services of a professional craftsman. And subject to the requirements of operation, it will serve you faithfully for many years.

Video: an office chair sinks under your weight - how easy it is to repair