How to fix a gas lift office chair. An office chair is falling down - how to fix it? As a conclusion

Unlike cabinet furniture, the chair is subject to increased wear, since in addition to daily use it contains mechanical and, most importantly, hydraulic parts.

So why did one owner’s chair break down after half a year, while another’s chair lasted for years without a single breakdown? This circumstance does not always depend on the quality of a particular model. First of all, of course, it is necessary to pay attention to the weight of the user, as well as care during operation. Anyway, modern armchairs Most are designed for a weight of up to 120 kilograms, and manufacturers, in turn, provide a guarantee for any damage from 12 to 18 months.

But if your chair is broken and the warranty period has already passed, then, with sufficient skill, you can easily repair the computer chair yourself. However, we recommend turning to professionals in organizations specializing in this.

If your computer chair lowers itself when you sit down and rises when you rise from it, and the period of lowering or raising can vary from several seconds to a day - this is a clear sign gas released from the gas cartridge. Gas lifts cannot be repaired, since their disassembly is dangerous to life.

In this situation, you can fix the chair with improvised means in the required position or replace the gas cartridge with a new one. The cost of the gas cartridge is not high, and it can be bought at any specialized store.

So, you have decided to replace the gas cartridge yourself.

You will need:

Armchair
Curly screwdriver
Rubber hammer
Metal drift
New gas cartridge (appropriate length and diameter)
Vise (for more convenience)

Replacing gas lift

If you carry out repairs in the cold season, the liquid in the gas lift may freeze; in this condition it is strictly prohibited to use it. Wait until the new gas cartridge warms up to room temperature(This will require leaving it for up to 24 hours).
The first step is to unscrew the seat from the rocking mechanism or piastres using a figured screwdriver. Turn the chair over, mark the face of the rocking mechanism, remove the 4 screws holding the chair seat to the rocking mechanism, and set the chair body aside.
Move protective cover, take the gas cartridge in left hand downward swing and impact mechanism medium strength start tapping the rocking mechanism at the base of the gas cartridge, being careful that you don’t bend the rocking mechanism. If you are unable to disable the swing mechanism, try holding the base of the gas cartridge in a vice and turning the swing mechanism.
After you have removed the swing mechanism, you need to knock the gas cartridge out of the crosspiece; to do this, turn the crosspiece upside down with the rollers and, using a metal drift, knock the gas cartridge out of the conical base of the crosspiece with gentle blows. Make sure that you do not damage the front side of the chrome cross and the stiffening ribs of the plastic cross.
The crosspiece is disconnected! Difficult task behind, now you need to assemble the chair, first screw the swing mechanism to the backrest seat, pay attention to the correspondence of the front side of the seat with the front side of the swing mechanism.
Now place the crosspiece with its wheels on the floor, remove the transport cap from the gas cartridge (you should see the button; attention! pressing the gas cartridge button in your hands is dangerous), insert a new gas cartridge, make sure that the diameter of the gas cartridge matches the crosspiece, put on the protective cover and put the chair body on the swing mechanism, if everything is in order, press the body of the chair with your hands and check all the elements again. You can sit on a chair and check the operation of the gas lift.

Attention! If you have a problem with the gas cartridge immediately after assembling a new chair, you may have encountered a defective gas lift or rocking mechanism. But before contacting a sales organization to replace parts, check whether the gas lift button is fixed by the lever from the swing mechanism.

Attention! If the gas lift does not respond to pressing the lever, check: - the swing mechanism or piastres are attached correctly, - whether the lever for pressing the gas lift button is bent. In other cases, the gas cartridge will need to be replaced.

Repairing an office chair is often expensive and sometimes even impossible. Is it possible to do something with your own hands?

Before you throw away the good stuff office chair because the gas lift or wheels are not working, try to fix it. All you need is a few simple tools and easily accessible parts.

Gas lift malfunction

Most common reason breakdowns of office chairs - damage to the lifting mechanism.

If lifting mechanism The chair needs repairs, but all other parts are in order, don’t rush to throw it away. Fix it! You can replace the gas lift yourself. Unfortunately, even without breakdowns, this part will wear out sooner or later.

The process of replacing this mechanism can be called two-part:

Dismantling the lifting mechanism. Measurements for purchasing or ordering a new part.
Installation of a new part. Assembly.

That's all. This will take about 45 minutes, excluding the time needed to find the part.

You will need an assistant and some tools:

gripping pliers (needle-nose pliers);
pipe wrench;
Phillips screwdriver;
hammer (it is optimal if you use a wooden or rubber one).

Repair progress:

turn the chair upside down and place it on the table;
remove the mechanism from the seat using a screwdriver;
The gas lift can be removed by applying several medium-force blows with a hammer. You need to hit from the side of the cross (five-pointed), but so as not to damage it. For this it will be more convenient to use two hammers. Place one hammer on the gas lift, and strike with the second from above;
install a new lifting mechanism;
assemble the chair;
adjust the chair lowering lever.

Wheels

Loose or completely fallen-off rollers can also be easily repaired yourself. What is needed:

hammer;
screwdriver.

The screwdriver, by the way, can be replaced with any other durable object that will convenient to pry on something.

turn the chair over;
disconnect the seat base from the gas lift;
remove the crosspiece;
Remove the plastic covers from the crosspiece using a screwdriver.

At the end of the metal cross there are plastic plugs on which the wheels are attached.

In the center of the crosspiece you will see a ring with five tabs that secures the shrouds. Using a screwdriver, pry up the edge of each casing and remove the plastic plugs. Worn plugs must be replaced. Next, install the covers and wheels.
Sometimes the roller spring ring is faulty. These videos also need updating.

Cross

Breakage of this part of the chair almost always occurs due to careless use. The crosspiece is destroyed if the user suddenly sank into the seat and “fell” into it. Of course, everything also depends on the material. Steel crosspieces are much stronger than plastic ones, but their failure is also possible.

Almost any breakdown of this element cannot be repaired and requires replacement.

Carefully remove the crosspiece. Use tools for this and do not act harshly, as you may damage the gas lift.
Remove the wheels.
In the center of the cross there is a ring with recesses that secures the plastic casing. Using a screwdriver, pry up the ring and slide the edge of the casing. Take it off.
Remove the plugs.
Replace and reassemble.

If only one beam is broken, the entire five-arm should still be replaced. Since in this case the remaining rays take on the entire load and can also quickly break. It is recommended to replace the broken plastic cross with a stronger metal one, if possible.

Piastra

A piastra is a part that is responsible for height regulation. If your chair has become shaky and creaky, then this is a breakdown of the piastres. What could have happened?

The mounting screws may have become loose. Twist them. If that doesn’t help, unscrew it completely, apply glue (PVA or Moment will do) to the threads and screw it in. Allow the glue to set before you sit back on the chair.
The insert seam between the plate and the bushing that fits onto the gas lift has burst. You can solder the seam. It is important to remove the gas lift first.

Back

This is probably the most annoying breakdown. If the back of the chair does not lock, then the permanent contact that regulates the connection between the back and seat is faulty.

The permanent is a non-separable part, so the part should be removed (this is not difficult, you just need to unscrew four bolts) and replaced.

Even such a cosmetic defect as worn upholstery can be corrected by purchasing fabric at the store and using a furniture stapler.

These are just the most basic breakdowns of office chairs. Yes, if you do your own repairs, you still have to pay for new parts. But such repairs will cost several times less than buying a new chair. Not all elements can be repaired, and in many cases you cannot do without the help of a specialist.

A fairly common situation when you urgently need to answer the question, how to fix an office chair? At first glance, it may seem that if an office chair is broken, it is easier to take it to a specialized workshop, where it will be repaired with a guarantee. But it may turn out that this type of service is not provided in your city. Indeed, in Russia this is done only in megacities. What then to do in the provinces? Throw it in a landfill and buy a new one?

Of course, it all depends on how difficult you find it to be to restore it to its previous working condition. Of course, you will have to imagine and then implement your plan of action according to the program on how to repair it. A regular computer chair may require a standard screwdriver with a simple tip for a split screw with a “-” sign or a screw with a head in the form of a “+” sign. You can use one or another screwdriver if the problem is that the screws have become loose over time. Even a blonde can handle this. As they say, the manicure will not come off your nails. Yes, and you will need to work with the tool for a few minutes, tightening the bolts.

One of the more complex problems

Mechanisms that make up a chair

Like any technical mechanical device, an office chair (sometimes called a computer chair) consists of several parts. Pay attention to the parts and how they interact with each other. In principle, the design itself is clear and no special explanations need to be given. However, understanding all the mechanics will help you figure out the weak point right away. One of them is indicated above - loose and spontaneously unscrewing bolts. Sometimes they are replaced by screws that fit into holes in other parts. For example, in the seat itself, if it is made of wood. Or in aluminum tubes. Normally these are self-tapping screws with threads. Sometimes they are replaced with cheap ones and they don’t last. Here it is enough to buy self-tapping screws and replace the ones that have fallen out. The repair will be durable and quick.

What you need to know

In most cases, repairs computer chair quite easy to do with ordinary tools. Provided you know how to handle them. Warranty period service depends on the materials from which it is made. Substitutes are typically used genuine leather, foam rubber, plastic, wood and soft metals (aluminum or copper).

Now you can easily clarify what exactly your chair consists of. Knowing the materials and structure is important in order not to damage them with tools during repairs. For example, the blade for metal and wood files can be different. The notch of the metal blade can tear artificial leather, while a blade designed for other materials cuts more softly.

The nuance is that sometimes you have to turn the chair over and cut off the excess aluminum tube under the seat, which becomes loose and “crawls out” over time from the foam rubber, clinging to clothes.

Typical chair malfunctions

Depending on the design, chairs are divided into simple and complex. But the scheme is usually the same.

Swing mechanism diagram

These are chairs with a headrest (and without it), with armrests (they are also found without them, but very rarely). The most vulnerable of constituent elements knot - swing. Repairing the swing mechanism of an office chair requires knowledge of the features of its operation. Required information can be obtained on the website. There is not only a diagram, but also a video (the sequence of repair actions is shown step by step).

Other typical fault is due to the fact that the headrest begins to “fall” back. Here you should know that the operating principle is almost the same as that of any swing device. The headrest usually consists of two hinges. One of them becomes loose over time and the headrest stops working properly. The problem can be solved very simply - you need to insert a thin metal plate into the gap between the hinges (the thickness is determined experimentally). The headrest can be removed and simply lubricate the hinges with some viscous material. For example, glue for rubber. After drying, it will give the hinges the necessary rigidity.

Other chair malfunctions

With use, your seat may show the effect of “aging”, like any furniture. This means that by “malfunctions” we must also understand aging itself, when the constituent parts of the chair simply deteriorate: the leather substitute “wipes off”, the foam “sags”, the wheels begin to scratch the floor. All this can be eliminated by purchasing new leatherette, foam rubber, or grinding off the nicks that appear on the plastic wheels with a file.

To give a more aesthetic appearance, you can replace the upholstery

Like any mechanical device, a computer chair for home use requires preventive maintenance. You don’t have to wait for screws or screws to start falling out of it, you don’t have to make the chair into something like a structure to test its strength. Subject to such simple condition your convenient and comfortable seat will only need “cosmetic” repairs and only from time to time.

As a rule, the question of how to disassemble an office chair arises in situations of transporting furniture or when repairs are necessary. How to do this easily and quickly? Here are recommendations that will help you cope with this difficult task yourself.

Let's start the disassembly process

Before you begin disassembling the chair, follow these steps:

position the chair so that its back rests against the wall;
stand facing the chair;
rest your feet on the base;
take the armrests in your hands.

Start rocking the chair left and right and at the same time pull up on the armrests. Do not forget about safety nets - if you move suddenly while separating the elements of the chair’s structure, you may fall. If you do everything correctly, such results are possible.

1. The seat of the chair was completely disconnected from the gas elevator.

2. The gas lift (also called a pneumatic chuck) has separated from the crosspiece, but is still in the swing mechanism.

In the first case, you should turn the cross so that the gas lift is directed downward. Keep the chair itself suspended, approximately 20-30 cm from the floor. Take a hammer and tap it on the edge of the gas elevator. If you are unable to reach the edge, use a metal tube or chisel. Try not to overdo it with the applied efforts, because inside the elevator, in its very center, there is a fastening bracket. It is very sensitive to shock, so it can be accidentally damaged.

What to do if the air chuck is stuck

But how to disassemble an office chair if it was not possible to remove the gas elevator from the swing mechanism? Position the chair with the lift facing down. Use a rubber mallet to hit the top part sticking out of the mechanism with medium force. It is not recommended to use a regular hammer - there is a risk of breaking the plastic and damaging the gas elevator. When impacting, direct the forces downwards, so you will gradually loosen the gas lift - and it will begin to come out of the swinging mechanism.

You can use another method. Place the office chair with the air chuck pointing upward. Hit the place where it enters the seat part (it is usually made of metal). All subsequent blows should be applied to a new place, otherwise there is a risk of jamming the mechanism. Do not forget that the entire procedure is carried out under a canopy, and the chair should be held by the thin part of the gas elevator. Do not hold on to the thick part - you may accidentally destroy the air chuck, as a result of which you will not be able to pull all its steps out of the seat.

If the gas lift was separated from the chair, you have done most of the work. Now remove the wheels from the cross. If the metal pin gets stuck in the crosspiece (and this is possible when removing the wheels), remove it using pliers and then reinsert it into the wheel. If it is necessary to replace the swing mechanism, unscrew the four screws holding it in place.

Before starting repairs, familiarize yourself with the mechanism and follow the recommendations. Then you will not have any problems with how to assemble or disassemble an office chair.

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The article is intended for those who have encountered a situation related to the need for urgent repair of office chairs. How to carry out some operations yourself and solve the problem on our own V short terms- that is the purpose of the article.

Not all problems can be solved independent decision. There are also breakdowns that cannot be solved without special equipment and the experience of real professionals.

However, there is a fairly large list of damage to such chairs, the most common, which you can easily fix with your own hands.

Repair of office chairs and computer chairs

As you all know, the design of the chair includes a gas lift, the task of which is to adjust its height. This element most often fails. Upholstery is a common problem due to scuffs, damage mechanical type, greasy stains that are difficult to clean, and needless to say, cigarette burns are also a scourge for our offices, because it is no secret that in many employees prefer to smoke in the workplace, even if there is a strict ban from their superiors.

Having its own service life, the chair, like any thing of active use, will sooner or later require drastic measures to solve problems associated with daily stress. If the frame itself is made in such a way that its service life is quite long, then it is the existing mechanisms, moving elements and the upholstery itself that after some time fail and require repair or replacement.

Often we are faced with an important question - what is better, to repair office chairs that have begun to show problems in use, have lost their appearance or buy a new one? Everyone needs to decide this question on their own. If the damage to your chair can be easily and cheaply repaired, then does it make sense to spend a significant amount on a new purchase? In addition, situations may be different - lack of free finances for at the moment time, or an urgent need to put such a chair into use. I propose to consider the cheapest and most affordable damage to repair yourself.

Elements increased risk in office chairs

In order to know which side to take on the repair, what tools will be required for this, and to what extent it will be possible to do it without a specialist, I advise all owners of office furniture to first understand the very design of this type of furniture. This is important to get an idea of what can most often fail in it.

The highest risk elements include:

rollers, very often destroyed;
bursting crosses;
topgun, demonstrating the lack of full functionality;
gas lift, which no longer locks in the selected position.

For repairs you will need the following tools:

Phillips and slotted screwdrivers;
mallet with a rubber nozzle;
hexagons of different sizes.

In addition, I advise you to get advice about the components available for sale for this type of chair. This will help save time so as not to have to reassemble a failed unit, which costs a penny and will be quite easy to replace.

The crosspiece of the chairs can be made of plastic or made of metal.

Its main diameters are 580, 600 and 680 mm. If it is plastic, then exceeding the load on it by more than 100 kg is simply unacceptable. Violation of this condition is the main cause of damage to the crosspiece. Metal can withstand weight up to 120 kg.

Gas lifts are also different.

Personally, I have come across two main types, with increased and small travel (this option is most often used in executive chairs).

Video with instructions for replacing the gas lift below

Rollers are a problem in flooring.

Since they are made of plastic, rubber and even made of semi-soft material, before purchasing a chair you need to decide on the covering of the office floor. With its hard surface, which has protrusions, cracks, and unevenness, plastic rollers will not last long. If available flooring in the form of parquet or laminate, then you need to worry about the condition of the coating and use chairs with semi-soft casters. Their axis is mainly 10 and 11 mm.

Video on changing wheels below

Each chair has the ability to adjust the tilt of its back, which is permanently responsible, almost never requiring repair or replacement, which also applies to the FDA element, which presses the back to the person sitting on the chair. Personally, I have not encountered any breakdowns of these mechanisms.

The chairs may have a mechanism installed that allows the chair to swing, called a topgan.

It can be short or long. It probably breaks even more often than the rollers.

Video on replacing the top gun

Do-it-yourself repair of accessible damage

What makes these chairs convenient is that they are very easy to disassemble. Before starting repairs, I advise you to prepare a container where you can put small details fastenings or components of failed mechanisms. I removed the rollers from the cross very easily, and the 4 bolts securing the topgun to the seat required some effort from me to carefully unscrew them. Because of long-term use, they are often misaligned, which can affect the ease of twisting, which can damage their splines. In order to remove it from the gas lift, I had to use a mallet, which I struck along the perimeter, which allowed me to disassemble this structure. By the way, the damaged crosspiece required me to use a hammer to remove it. I also came across a situation where, apart from the leg, nothing could help remove the cracked crosspiece. The gas lift is removed from the body or from the cross itself.

The best way to carry out high-quality and quick repairs of office chairs with your own hands is to use my instructions.

Before starting the repair, I turn the chair upside down, having first found a surface on which it is convenient to place the seat.
I take a Phillips screwdriver and carefully unscrew the 4 screws that secure the seat to the height adjustment mechanism, called the piastrum, and remove the seat itself. It is important not to lose the screws.
The piastra requires me to tap it to get it off the gas lift. It doesn't work any other way. This must be done carefully, as there are plastic elements that can be easily damaged. And if there were problems with the piaster, which is determined before disassembling the chair, it must be purchased in advance and the faulty one must be replaced at this point. And I carried out the assembly process exactly, observing the reverse order.
If it is necessary to replace the crosspiece, I remove the broken element and remove the wheels from the mounting sockets. In the center of the cross you can see a ring with 5 notches. It secures the plastic casing on top. Need a screwdriver. I use it to pick up the ring, move the edges of the casing, move it and remove it from the ledge. This work will be required to remove the five existing covers.
The steel case has special plugs that must be removed. Only new ones are inserted into the crosspiece. Next comes the reverse assembly process, following the entire sequence. Upon completion - test. I sit on a chair and perform the usual evolutions on it.

Naturally, not all elements can be repaired so easily. I have described exactly those damages that can be eliminated with your own hands. Other possible breakdowns of the chair will require the participation of specialists. This may require special tools and materials that are practically impossible to purchase commercially.

If you need an experienced specialist, then our website - best guide and assistant. This is a new absolutely free site for conveniently searching for repairmen and companies. Choose the master that suits you yourself by going to the appropriate section, or simply send your application, indicating the type necessary work and the area where you live and you will be contacted shortly.