An armchair is an integral attribute of the interior, which is found in almost every home. A person uses this furniture almost every day, which leads to a deterioration in its condition. Such an operation as the repair of chairs will help restore the technical parameters of the design.

Features of furniture restoration

Furniture repair is a complex operation, which depends on the type of product and the breakdown itself. Today, such operations are rarely carried out independently. It is advisable to entrust the solution of such tasks to experienced specialists who will perform them much faster and better.

Restoration of furniture is the restoration of not only its functionality, but also its appearance. A feature of upholstered furniture is that it uses fabric upholstery. To repair the internal structure, the fabric will need to be dismantled or replaced. This operation also requires certain skills and efforts.

What can be done with your own hands?

Breaking the chair is not always a problem, as you can try to restore its condition yourself. There are several types of operations that are easily performed at home:

Padding. This process involves replacing the old fabric with a new one. This also includes changing the filler (foam rubber, etc.) and restoring the internal structure of the chair. If necessary, the wooden surface itself can be restored.
Upholstery. This approach involves upholstering fabric on the surface of the chair in order to update its appearance. Often such operations are performed with old rigid structures, the surface of which is not so easy to restore with paint.
Repair. This is a general concept, which includes the previously considered operations. But often this word is understood as all repair work related to the restoration of the state of the chair frame. This includes strengthening the structure with metal corners, replacing legs or seats, as well as restoring the surface of the material with paint and sanding.

To carry out all the previously described operations, you should not only have experience, but also stock up on a lot of special tools.

Accessories

Modern chairs are made from various materials. The design of such modifications consists of many elements that can be replaced if necessary. Often, such chairs include office models that are equipped with a gas-lift mechanism. For the restoration of such products, several types of components may be needed:

Rollers. This mechanism is made of various types of plastic. When choosing this product, it is important to consider its purpose, connector type and method of fixation.
Gaslift. Almost all office chairs are equipped with this element, which allows you to hold the chair at a certain height. There are several types of these structures on the market today. It is important to pay attention to the type of mechanism that was previously used in the damaged chair.
Cross. Plays the role of a support element. Performed in the form of a 5-ray star, to which the rollers are attached. When buying, it is important to pay attention to the quality of the material and the way the parts are connected.

There are many other accessories that will be needed when repairing such furniture. This includes everything from small knobs and bolts to specialized fabrics.

How to drag and drop: step by step guide

One way to restore an old leather chair is to reupholster it. This process is quite lengthy and laborious. First of all, new fabric is bought. Padding can be done with leather and other popular materials. Some experts also recommend purchasing stuffing materials (foam rubber, batting). To simplify the hauling operation, you must also have a stapler, nails, hammer, etc.

The algorithm for solving this problem can be described in several successive steps:

At the first stage, the fabric is dismantled from the bottom of the chair. In simple models, this part is fixed only from below. But there are complex models, so it is important to initially free this part, and then proceed to the rest of the operations.
After that, the fabric is completely removed from the surface of the structure. It is important to do this consistently to avoid any damage to the elements. Please note that each element of the chair is covered with one piece of fabric. Therefore, it must be released sequentially, layer by layer. These elements should not be torn, as they will then need to be used as blanks for cutting.
The next step is to remove the old foam upholstery. To remove it, you should carefully unbend and remove all the metal staples with which it was fixed. Also try not to tear the material, which will later be used as blanks when replacing foam rubber.
Cut out the material. This operation involves the formation of new upholstery elements. To do this, use old pieces of fabric that were attached to the armrests, back and seat. The size of the new elements should be slightly larger than the old ones. This is due to the fact that it is not always possible to predict how accurately the fabric will lie. Therefore, it is better to take it with a margin.
This step involves fixing the foam rubber. Previously prepared pieces are sequentially placed on a specific part of the chair. If the foam protrudes in certain places, then it should be cut off. Thus, the appearance of each element is formed. Then a synthetic winterizer is placed on top of the foam rubber. After that, both substances are fixed on the frame with a stapler. It is important to fasten them so that they follow the contours of individual parts of the structure.
The process is completed by attaching the fabric. This operation is very similar to the previous one. But it is important to properly position the pieces on the surface. Before fixing, carefully align the fabric and stretch it. Initially, the middle part of the workpiece is nailed with staples. This is necessary in order to avoid distortions. Then each of the corners is sequentially stretched and fastened with a stapler.

How to sew yourself?

The chair upholstery process is slightly different from the upholstery, although in many ways it is very similar. This operation involves covering the chair with a cloth. For such purposes, only furniture is used that was not originally equipped with fabric upholstery.

Upholstery technology involves several sequential operations:

Before you cover a chair at home, you should stock up on some tools and materials. To perform such operations, you need fabric. As this substance, you can use products made from bamboo, cotton and other natural materials. It is important that the fabric withstand constant loads and retain its properties for a long time. You will also need a construction stapler, scissors, etc.
At this stage, you need to disassemble the chair into separate parts. This will greatly speed up the plating process. At the same time, try to remember in what order the elements were dismantled so that in the future it is easy to assemble the structure back.
After that, fabric blanks are made. They are cut out in accordance with the dimensions of a separate element of the chair. Try to use substances with a small margin in order to be able to correct the location of the material on the surface. If you plan to make an easy chair, foam rubber is placed inside it. This substance also occupies a certain volume, which should be taken into account when forming a tissue blank.
The final step is plating. Start it with small details, such as an armrest. The skinning algorithm is quite simple. Initially, the fabric is placed on the surface of the product and pulled a little so that it evens out. It is advisable to do this with an assistant, which will greatly speed up the process. When everything is in place, the material is nailed to the frame from the inside. It is important to constantly control the tension in order to avoid distortion.

All other elements are sheathed in the same way. If necessary, the material can be cut.

How to update old furniture: ideas

Old chairs are often very strong and durable. But after a long period of operation, they lose their attractive appearance. Do not rush to throw away such furniture, as it can be easily restored.

The technology for updating the chair depends, first of all, on its design. This can be done using several approaches:

Products from the 60s can be restored simply by changing the upholstery. This process is relatively simple. The main thing is to choose the right style of fabric. Some designers recommend using several color shades that will fit into the overall interior.
Restoration of the outer covering. This approach involves changing the paint layer on wooden or metal surfaces. It is used for armchairs made of rattan, wood, wicker and other natural products. This also includes the restoration of natural or artificial leather (painting, cleaning, etc.).
Replacing certain items. An old chair will look original if you change the armrest in it for a product of a different shape. Similarly, you can do with the legs or back. It all depends on your imagination and possibilities.

How to repair yourself?

Armchairs today have a different design, on which the algorithm of repair work depends. If this is an ordinary wooden product, then fixing it is quite simple. A problem should be identified, which is often poor-quality fasteners or a violation of the structure of the material. You can fix this by replacing the wooden element (back elements, frame base, etc.) with a new one or simply tightening the bolt.

It is more difficult to repair shell chairs, which often have outer fabric upholstery. To get to the breakdown, you first need to dismantle the fabric. The process of repairing such chairs is much more complicated, therefore it is not always possible at home.

Office chairs are mechanisms that consist of several parts. There are many reasons why this design loses its characteristics:

Dropout of rollers. Often this can only be corrected by replacing the cross or these moving elements. It is important to first check what the cause of the breakdown is (broken hole, missing retaining ring on the roller, etc.).
Disruption of the gas lift. There are also several reasons here, including improper fastening of the piastres or malfunction of the control lever mechanism. Therefore, these attributes should be checked first.
Cross breaks. You can restore the health of this element only by replacing it with a new one.
The back does not bounce. The main cause of this problem is the violation of the integrity of the metal parts inside. Sometimes the spring mechanism also fails. You can restore the work only by replacing parts with new ones.

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

Of course, it all depends on how difficult it will seem for you to restore the previous working state. Of course, you will have to imagine, and then implement your plan of action for the program of how to repair. A typical computer chair may require a standard screwdriver with a simple tip for a slotted screw with a “-” sign or a cap screw with a “+” sign. This or that screwdriver can be used in the case, if the whole problem is that the screws loosened over time. Even a blonde can do it. As they say, a manicure will not fly off your nails. Yes, and it will take a few minutes to work with the tool, tightening the bolts.

One of the more complex faults

The mechanisms that make up the 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 visual and no special explanations need to be given. However, understanding all the mechanics will help you figure out the weak spot right away. One of them is indicated above - loose and spontaneously unscrewing bolts. Sometimes they are replaced by screws that go into holes in other parts. For example, in the seat itself, if it is made of wood. Or aluminum tubes. Normally, these are self-tapping screws with a thread. Sometimes they are replaced with cheap ones and they do not hold. Here it is enough to buy self-tapping screws and put them in place of the ones that have fallen out. Repair will be durable and fast.

What you need to know

In most cases, repairing a computer chair is quite easy to carry out with ordinary tools. As long as you know how to deal with them. The warranty period depends on the materials from which it is made. Typically leather substitutes, foam rubber, plastics, wood and soft metals (aluminum or copper) are used.

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 saw blades for metal and wood can be different. Notching a blade for metal can tear artificial leather, while a blade designed for other materials cuts more gently.

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

Typical chair malfunctions

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

Diagram of the swing mechanism

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

Another typical malfunction is related to the fact that the head restraint begins to "fall" back. Here you should know that the principle of operation is almost the same as that of any swing device. The headrest usually consists of two hinges. One of them loosens over time, the headrest stops working normally. The problem is solved very simply - a thin metal plate must be inserted into the gap between the hinges (the thickness is selected empirically). The headrest can be removed and simply lubricated with some viscous material on the hinges. For example, glue for rubber. After drying, it will give the hinges the necessary rigidity.

Other chair malfunctions

With use, your seat can show the effect of "aging", like any furniture. And this means that by “malfunctions” one must also understand aging itself, when the constituent parts of the chair simply deteriorate: the leather substitute “wipes off”, the foam rubber “sags”, the wheels begin to scratch the floor. All this is eliminated by acquiring a new leatherette, foam rubber or grinding the notches that have appeared on the plastic wheels with a file.

Upholstery can be replaced for a more aesthetic look.

Like any mechanical device, a computer chair for the home, at home requires preventive personal care. No need to wait for screws or screws to fall out of it, no need to make a semblance of a structure out of a chair for strength testing. Subject to such a simple condition, your comfortable and comfortable seat will need only a “cosmetic” repair and only from time to time.

A computer chair is an essential attribute of the workplace of a modern person, without which it is difficult to imagine an office or an office.

Office chairs are designed to be light, agile and comfortable for long hours in the office or at home.

The convenience of a computer chair is expressed in its ergonomic and functional form, it is suitable for people of any physique, height or weight. All this is possible thanks to the unique ability to adjust the height or the level of the backrest to the needs of a particular user, for which the gas lift built into the design of each chair is responsible.

The main signs of a gas lift malfunction

However, this same part is also a weak point, the breakdown of which renders the entire functionality of the seat unusable.

Office chairs are comfortable and functional furniture, but sometimes they need to be repaired.

Computer chair parts that may need to be replaced or repaired

Schematic diagram of an office chair

If you are faced with a malfunction of the computer chair, you need to find out exactly which part needs repair. One of the most common causes of failure is the gas lift, as the part that is most subject to wear.

Do-it-yourself repairs will not be able to restore the full functionality of an office chair

There are two ways to fix a broken gas lift. The first option is to replace the defective part with a new one, no matter what, from a whole chair or bought in a store.

The gas lift of the chair or the lifting mechanism is designed to adjust the height of the office chair

carpenter's hammer;
pliers;
bolt with a diameter of at least 10 mm;
screwdriver or screwdriver;
technical lubricant.

Repair tool kit

To replace the legs of a computer chair, you must follow the step-by-step instructions:

The second method is cheaper, it consists in fixing the gas lift in one position. However, this method eliminates the possibility of adjusting the height of the chair, but if you need the same height, it is quite suitable. You will need:

screwdriver;
a pipe, a rubber hose, or a set of washers, depending on what you have on hand;
rag to remove traces of oil.

Before starting the repair, it is important to make sure that there is no gas in the gas lift and the gas chamber has free movement up and down, that is, if the height adjustment lever dangles freely. Only then follow the instructions.

According to the instructions presented earlier, remove the chair along with the rocking mechanism, leaving the cross.

We knock down the cross with a mallet from the chair, you need to hit as close to the middle as possible, alternately from different sides of the pneumocartridge

We turn it upside down and in the center we see a latch, remove it, and then take out the washers covered with oil. Having done this, you can pull out the outer casing, from which the lifting rod sticks out, on which the rubber damper, thrust washer, bearing and second thrust washer are attached.

Removing the steel washer

We remove the glass, and then everything else from the axis - gum, washers and bearing

Next, we select the delivery, which we will fix on the lifting rod, thereby fixing the height of the chair at a certain level. You can use any material from a PVC pipe to a hose and washers with nuts, the main thing is that it fits freely on the stem.

We make a tube of the desired length, with an inner diameter not less than the diameter of the axis

Measure the required length of the hose and secure it with a damper, then screw on the thrust washer, bearing, second washer and insert the structure back into the gas lift body.

We put the resulting tube on the axis, and then the rubber band (if it is still alive) and washers with a bearing

Reassemble the gas lift by installing the outer washers and latch. The chair is ready.

We put the cross in place, and complete the assembly by installing the wheels

Cross replacement

It looks like a metal cross with plastic casings below

In a separate case, it is worth noting the breakage of the cross. Although this part is made of especially durable materials, its breakage is not excluded, especially if it is made of plastic.

Types of crosses: plastic, aluminum, metal with wooden lining

Fortunately, replacing this part with a new one is quite simple. You will need:

new cross;
hammer;
pliers.

To replace, follow the instructions: turn the computer chair upside down, pull the wheels out of the mounts. Take the pliers and in a circular motion knock out the gas lift, applying point blows to its edges

To remove the plastic cross from the gas lift, you need to hold on to the gas lift and tap the cross around the connection point with light hammer blows from above.

After disconnecting the cross, install the wheels on the new one and insert the second part of the chair into the hole. You don't have to worry about incompatibilities as the gas lift attachment is standardized on all office chairs.

To knock out the gas lift from the cross, it is better to use a spacer of the appropriate size. to prevent blows to the central part of the gas lift

Thus, you can fix any office chair on your own, without the costly purchase of a new chair.

Video: Office chair repair. How to replace the gas lift (gas cartridge) of an office chair.

A modern office chair is a functional and comfortable piece of furniture, equipped with a fairly complex mechanism that sooner or later fails. In such a situation, there are three options for the development of events: purchase a new one, give it to a specialized workshop, or do the repair of an office chair with your own hands.

As practice has shown, it is quite possible to perform such work on your own. The only thing that is required from the master is the strict observance of the sequence of actions and the implementation of the instructions that will be given in this publication.

Today, there are three types of chairs on the office furniture market:

For the leader
Such a piece of furniture usually has a maximum of possibilities: a five-beam steel cross; synchro-mechanism (a device that makes the seat and back repeat the movements of the owner); mechanisms for adjusting the backrest resistance, seat depth, negative tilt, etc.
For staff
Furniture of this type has more modest characteristics and functionality. Most varieties are lightweight (providing high mobility), equipped with mechanisms for adjusting the height of the seat, armrests, and backrest angle.
For visitors
Office chairs of this modification are simply beautiful, stable and comfortable furniture, devoid of any functionality. Often they do not even have a rotation mechanism and are produced on four legs, instead of one supporting leg with a cross on wheels.

Design features

Despite the variability of designs and functional content, almost all chairs consist of one set of elements:

Five-beam cross(base). This part is made of metal or plastic. The first option is better and more expensive
Rollers. Just like the cross, the wheels can be made of metal or plastic. However, the mount and internal hinge of any roller is metal
Pneumocartridge(gas lift). The part serves as the leg of the chair and is responsible for its "elasticity"
swing mechanism contributes to the axial deviation of the chair and its fixation in one position. On expensive models, a mechanism with an offset axis is installed, providing the smoothest possible swing.
piastra. This element is a metal platform with a lever. Serves to change the height of the seat relative to the crosspiece
Permanent contact- an element that connects the back to the seat and is responsible for changing its position

Most office chair models have armrests. In cheap models, these elements are made of plastic; in more expensive ones - from anodized or stainless steel.

Common breakdowns

As noted above, an office chair is a rather complex device and any of its structural elements can fail.

Cross damage

The problem of this element may be destruction at the junction of the beams. The material from which the cross is made is important here.

As a rule, the base is a hollow structure, inside which you can insert a polypropylene pipe of suitable size and cross section. It, in turn, must be rigidly fixed to the base and the damaged beam.

Plastic parts cannot be spliced with glue or a soldering iron. due to the heavy load on the paws. It makes no sense to restore the integrity of this element. The best option would be to completely replace the damaged structure with a glass-filled polyamide base.

In order to dismantle the crosspiece of an office chair, you need:

Shoot videos. As a rule, they do not have a rigid fixation and are simply removed from the mounting sockets. For clarity of the process, it is recommended to watch the video:
Carry out the dismantling of the piastra. Fastening to the seat is made "on a cone". Disconnection from the gas lift is carried out by tapping on the attachment point. The correct process for disassembling an office chair is shown in the video:
Remove retaining clip located in the recess of the upper part of the hydraulic lift.
Knock out the gas lift for repair or replacement of the five-arm.
Note! In case of critical damage or destruction, it is impossible to knock out the gas elevator from the base. In this case, the working cylinder with a seal and bearing should be pulled out of the "glass".

The process technology and dismantling tool are shown in the video:

Destruction of the swing mechanism

If the chair does not hold the “horizon”, then the problem is most likely in the destruction of the rocking mechanism.

Fastening to the seat is made with four screws for a curly screwdriver. The element is dismantled as follows:

Unscrew the bolts that secure the swing mechanism from the seat
The gas lift is knocked out of the device mount.

This item is made of metal.

You can independently solve the problem of a collapsed device by completely replacing it (recommended) or using a welding machine.

It should be noted that domestic spare parts are not suitable for most chairs from the Middle Kingdom. This concerns, first of all, the rocking mechanisms (mismatch in size).

Chinese mechanisms: 200 x 200 mm.
Domestic: 200 x 150 mm.

In order not to over-drill holes when replacing an element, we suggest using adapter plates. How it looks assembled can be seen in the figure below.

Pneumocartridge failure

The pneumocartridge of the chair is a two-chamber structure filled with air. When the adjusting lever is pressed, the valve closes the air flow between the chambers.

If, when the valve is pressed, the gas lift rod does not extend, then the integrity of the piston, seal, etc. is broken.

It is important to know! The gas lift cannot be disassembled. In case of damage, a complete replacement of the element is required.

The dismantling process is described above. For clarity of the process, check out the video on replacing the gas cartridge on office chairs:

A fairly common cause of gas lift failure is the bending of the adjusting lever, which does not allow pressing the cartridge valve. In this case, the repair can be easily carried out on your own: you need to bend the lever to its original state.

Video: Chair Permanent Contact Repair

If the contact is loose and the back “does not hold”, you will need to seal the connection. How to do it, see the video:

As a conclusion

As can be seen from the foregoing, almost all work to restore the performance of an office chair consists in replacing failed elements. In most cases, any "handy" man will be able to perform such work. Finding the parts needed for replacement is quite simple: all components can be purchased at specialized stores or at companies selling office furniture. To complete the picture, we recommend watching a video about repairing office chairs with your own hands:

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How to repair an office chair with your own hands: step by step instructions for repair

Modern office chairs are used both in offices and at home, and like any furniture, these devices, sooner or later, need to be repaired. I offer an overview of the most common breakdowns and simple instructions for their elimination.

Types of office chairs

Damage and breakage of office furniture, as well as the complexity of repair, are determined by the design features and operation features of a particular model. We offer a wide range of office chairs for sale. What to choose taking into account the comfort of use, the duration of the resource and subsequent maintainability?

Illustrations	Varieties and their description
	Chairs for visitors. These are fixed models assembled on the basis of a metal frame. Seats and backs can be hard or soft. Soft models have foam filling and fabric or leatherette upholstery.
	Computer chairs (for staff). These are compact rotary models with a seat fixed on a roller base. The design uses rollers for soft or hard surfaces. This furniture provides seat height adjustment and backrest tilt adjustment.
	Executive chairs. In fact, this is also a computer chair, but with an additional width and height of the back. The chairs of the head use the swing function with the possibility of blocking. Of course, there is the possibility of setting the seat height and tilt. Almost all executive chairs are soft and high-quality fabrics, leatherette or genuine leather are used as upholstery.

Advantages and disadvantages:

Models for visitors distinguished by such qualities as reliability, low cost and high maintainability. Despite the low level of comfort, such furniture is a good choice for equipping an office or home office, provided that it works for a short time.
Models for staff distinguishes comfort and functionality of use. But, due to the additional functionality, the design becomes more complicated, and therefore such chairs are more difficult to repair in comparison with the previous version, where there is simply nothing to break.
Executive Models- this is even more comfort, useful and not very functions and even more luxury in decoration. All these advantages turn into complex repairs.

Design features

In the design of a simple model for visitors, the following details are used:

Tubular welded metal frame.
Plastic or plywood seat and back.
Fasteners for attaching the backrest and seat to the frame.

Foam rubber is pasted over the seat and back and the upholstery is stretched.

More complex modifications of chairs are characterized by increased functionality, which is achieved through the use of a number of structural elements, such as:

Cross with roller pairs - allows you to relatively safely and comfortably roll over a flat floor.
Gas lift - a mechanism responsible for changing the height of the seat.
Mechanisms for changing the backrest and seat tilt.
Mechanisms that block the seat swing function.

Common breakdowns

Since the design of visitor chairs is simple and there is nothing to break, we will focus on the most common breakdowns of functional chairs.

Cross damage. The crosspiece itself is a solid monolithic part, which is difficult to break under normal operating conditions. More often, decorative plastic linings break or wear out in the crosspiece.
Roller damage. In most chairs, when used improperly, the rollers crumble and break.
Destruction of the swing mechanism. If the chair is not properly used in the swing mechanism, the lock stops working and it becomes simply unsafe to swing back.
Pneumocartridge failure. This is the most common failure, in which the compression in the pneumocartridge weakens and the rod with the fixed seat falls down.

Causes of breakdowns

The causes of breakdowns are of two types, namely, non-compliance with the rules of operation and natural wear and tear of parts. Consider the most common damage in more detail.

Illustrations	Damage and their description
	Cross breakage. The main reason is the impact and, as a result, the appearance of cracks on decorative plastic overlays. Due to the fact that the legs are placed on the crosspiece, the inexpensive plastic lining is quickly covered with scuffs. On all-plastic crosspieces, due to the heavy load, one or more beams break off right at the stem mount.
	Rollers. There are two types of rollers: hard for soft surfaces and soft for hard surfaces. Most of the chairs are by default equipped with rollers for soft surfaces, which, rolling over tiles or parquet, begin to crumble and break over time. Also, due to the heavy load, the roller rod may break off, as shown in the photo.
	rocking mechanism. This assembly fails due to excessive loads (large weight of the rider and intense swinging). The cheaper the chair you bought, the more likely it is designed for light loads.
	gas lift. The reason for seat sagging lies in low compression, which in turn appears as a result of depressurization of the internal volume of the cartridge.

Self-repair - as far as possible

Almost any breakdown from the previously listed list can be fixed without contacting the workshop. Moreover, to eliminate the listed problems, there will be enough tools that are likely to be in any home workshop. Let's take a look at how to troubleshoot the most common office chair problems.

Illustrations	Damage and remedies
	cross. If the cross pads are broken, simply dismantle the broken part and try gluing or soldering it along the crack line. To hide the wear on the plastic pads, sand the entire crosspiece with sandpaper to a uniformly matte finish. If part of the all-plastic spider is broken, the structure can be bolted through a through hole drilled in the stem. However, such a repair will not provide sufficient reliability, and therefore it is advisable to replace the cross at the first opportunity.
	Rollers. If the wheel crumbles, the only sure way to repair it is to replace it. According to the type of fastening, there are two types of rollers: pressed into seats and models with a threaded rod. If the chair is Chinese, the roller rod is most likely pressed in. To remove the roller, put a chisel or other narrow metal plate into the slot at the base of the rod and pick out the part. In place of the removed roller, we insert a part with the same rod.
	swing mechanism. This assembly, if damaged, is replaced in the assembly. You can find a replacement for a damaged part on the market or in online ads for the sale of chairs and spare parts for them. The mechanism is attached to the seat with four bolts. After the bolts are unscrewed, it remains to knock the faulty mechanism off the stem and press a new part in its place.
	gas lift. The breakdown of this structural element is eliminated by a complete replacement of the part or a refurbishment. Since such damage is not uncommon, we will consider it in more detail.

How to remove gas lift for repair

In order to repair or change the gas cartridge, you need to get to it and this can be done in three ways.

How to separate the cross?

Here, too, you can not do without a hammer. We turn the knot over with the cross up and knock out the gas cartridge, striking with a hammer on the protrusion shown in the photo.

The easiest way is to buy a new part and install it in place of the damaged element. After the replacement is completed, the entire structure is assembled in the reverse order.

Gas cartridge repair

Disassembly.

Removing the rubber gasket

Repair. After you have finished disassembling, you can replace or at least clean the rubber gasket, which, due to wear, does not fit snugly against the glass. At the same stage, the separator bearing can be replaced. If the chair crunches when turning, it is in this detail.

Reverse process (assembly). The assembly of the gas lift is carried out, as well as the disassembly, but in the reverse order.

A simple and cheap way to fix a gas lift

Despite the fact that the proposed method is simple and cheap, it is effective. Of course, this method is suitable if only you use the chair and no one tries to change the height to suit their dimensions.

Summing up

Now you know what kind of breakdowns are typical for office chairs and you can fix these damages. The video will reveal some of the nuances, and if you have questions during the repair work, ask them in the comments to the article.

October 18, 2018

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