An office chair is falling down - how to fix it?

The successful productive activity of any employee depends mainly on how well his workplace is organized.


A good office chair is part of the success of your business

A computer chair plays an important role here, since people working in an office spend most of their working time on it.

Causes of office chair breakdowns

Before you begin making repairs yourself, you must:

  • understand the design of a piece of furniture;
  • find out which element is faulty.

Computer chair design

The main components of an office chair are:

  • seat and back;
  • permanent - a contact connecting the backrest to the seat and allowing you to adjust the angle of inclination;
  • armrests;
  • piastra - the mechanism by which the chair is controlled;
  • gas lift providing seat height adjustment;
  • cross with rollers, acting as support and moving mechanisms, respectively.

Main components of an office chair

Definition and causes of malfunctions

The presence of malfunctions in the operation of a gas elevator (lift, gas cartridge) is indicated by the following aspects:

  1. the gas lift does not hold the seat in the specified position;
  2. the seat does not lower or rise when operating the control lever;
  3. the seat goes down under the own weight of the sitting person;
  4. the chair is tilted from its axis to one side;
  5. the chair “swings” in different directions.

Signs of a malfunction

The main reasons for the formation of these malfunctions are:

  • lack of lubrication in the mechanism. During the entire period of use, the gas lift requires periodic maintenance, which consists of applying lubricants;

Special composition for gas lift lubrication

  • natural wear and tear. Manufacturers guarantee the operation of the mechanism for 18 – 24 months. After the specified period, it is necessary to carry out repair work or replace the main furniture units;
  • improper operation: exceeding the permissible load level, jumping on the seat, and so on.

Office chair falls down: causes of breakdown, fix it yourself

If your office chair drops down, or the position adjustment mechanism does not work, and the chair is stuck, the gas lift may be the cause of the problem. You can take the chair to a special workshop for repair. You can also save money by repairing the chair or replacing broken parts yourself.

Common Causes of Stool Breakage

Almost all chair failures are associated with gas lift. It is located in the main part of the chair, to which the seat and crosspiece are mounted.

There are 3 most common breakdowns associated with lowering the chair down. Below we will describe what to do in each case. The breakdowns are as follows:

  1. The crosspiece is damaged. The problem is damage where the beams meet. The base consists of a hollow structure and a polypropylene pipe located inside. The latter needs to be secured to the damaged beams and the main part of the chair.
  2. The swing mechanism is broken. If the chair does not stay straight, the mechanism responsible for rocking is most likely damaged.
  3. The pneumatic cartridge is broken. The pneumatic cartridge is a two-chamber structure with air inside. The design also includes an adjustment lever. When it is pressed, the valve blocks the passage of air into the chambers. If the gas lift rod does not extend while being placed on the valve, it means that the damage is associated with the piston or seal.

Note! Do not repair plastic parts using glue or a soldering iron. Due to heavy loads on the legs, the structure may break. Therefore, there is no point in trying to restore the damaged part. It is best to completely replace the part with a new one made from the same material.

Gas elevator repair

A gas lift for an office chair consists of the following elements:

  • outer casing made of high-strength metal;
  • a cylinder consisting of two reservoirs and equipped with a bypass valve;
  • a piston with a rod located inside the cylinder and intended for lowering/raising the chair;
  • button that is operated by the control lever.

Internal structure of an office chair lift

The gas elevator is a completely sealed equipment and even if a breakdown occurs, the gas cannot enter the surrounding air.

To achieve the specified level of safety in using the mechanism, gas is pumped into the cylinder exclusively under factory conditions. Therefore, you can only do partial repairs of the office gas lift yourself, which boils down to “jamming” of the mechanism in a certain position.

How to repair a gas cartridge by fixing it? To repair a lift and fix the lift at a certain level, you must:

  1. gain access to the mechanism. To do this, remove the decorative plug (if any) and the pin - lock - from the lower part of the cross at the place where the lift is attached;

Disassembly to gain access to gas lift

  1. the crosspiece with the decorative casing is removed, thereby opening access to the lift;
  2. A piece of pipe suitable in length is put on the piston. It is this element that fixes the gas lift in one position. Therefore, it is important to determine in advance the optimal seat height and the required pipe length;

Fixing a gas lift with a pipe cut

  1. The chair is being assembled.

Why does the chair squeak?


There can be several reasons for the squeak:

  • The mounting screws on the swing mechanism have come loose. In this case, repairing the chairs is easy: just take a screwdriver and tighten the screws. To prevent further unwinding, it is better to remove the bolts, drip thick PVA glue into the opening and install the bolts in place. Do not operate the mechanism until the glue has completely dried;
  • The weld at the piastra or in the swing mechanism has burst. Unscrew the seat and remove the piaster;
  • metal mechanisms require lubrication. To do this, you need to drip WD-40 lubricant onto problem areas. The unpleasant squeak should disappear within a day.

Replacement of gas elevator

If the gas cartridge does not compress, and the device is required when using a chair, that is, fixing the device in one position is unacceptable, then a complete replacement of the mechanism is required.

To replace you need:

  • prepare a certain set of tools and additional materials;
  • familiarize yourself with the work flow chart.

Preparing to replace the gas lift

To replace the gas lift swing mechanism, you will need to prepare:

  • new chair lift. You can purchase accessories in a specialized store. When choosing a gas elevator, you should take into account the dimensions of the equipment and the maximum load. If you can’t determine the parameters yourself, you can use the help of sales consultants;
  • Phillips screwdriver for assembling and disassembling furniture;
  • hammer. To ensure safety, it is better to use a hammer made of rubber. Such a tool will not damage the equipment during operation;
  • ring punch;

Punch – a tool for pulling out (so-called “knocking out”) parts from holes

  • vice. You can replace the gas lift without a vice, but using a bench tool will simplify the work;
  • WD-40 liquid.

All adjustments of the chair with the TopGan rocking mechanism

– there is a free swing adjustment, – the backrest is fixed in the working position, – the force of deflection is adjusted, adjusts to the weight of the person sitting.

Below we will look at all the possibilities of this mechanism.

1. First adjustment, height. You can change the height of the seat by turning the lever (see Fig. 1), which, in turn, acts on the gas lift. The seat can be raised or lowered to suit the height of the user.

2. The second adjustment is to fix the chair in the working, vertical position , stopping the backrest from swinging. This can be done using the same lever (Figure 1), but this time we turn the handle to the right or left. When turning, the lever enters a special round hole to the left of the mechanism and locks the backrest in the working position, you sit straight and the chair does not lean back.

3. Adjusting the chair to your weight . In the front part of the mechanism there is a special spring hidden by a cap, which regulates the rigidity of the chair back swing. If you tighten the spring strongly, then a person with a lot of weight can sit comfortably on the chair. If the spring is weakened, then the swing becomes easy, comfortable for a person with little weight. This mode is adjusted by turning the knob clockwise or counterclockwise. Attention! You should not apply too much force; if the spring is completely fixed, you can break the thread on the bolt, which is located in the center.

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TOP-GAN swing mechanism, how to adjust, video:

The cost of a new office chair, especially if we are talking about advanced models with adaptation to a person’s individual parameters, is a fairly substantial amount of money. On the one hand, it is simply impossible to do without a chair at home and at work: it is an irreplaceable piece of furniture, sitting on which a person of the modern era spends most of his day. On the other hand, sitting on a broken or worn-out chair is an even worse idea. The last option remains - repair.

Here, as is usually the case, the owner is faced with a choice: either give his chair to the craftsmen, pay a small amount of money for repairs, and then pick it up whole and almost brand new. A more complicated option, but cheaper, is to repair the work chair yourself. Fortunately, there are many video tutorials and articles on this topic on the Internet. However, you will have to pay for this not with money, but with your personal time and effort.

Before repairing an office chair, first of all, you need to figure out which specific elements of the chair need repairing. An office chair is not a car or an airplane, but its mechanism also consists of a complex of parts and components. Most often, problems with office chair breakdowns are associated with the following components:

  • Wear and tear of the chair upholstery;
  • Breakage and clogging of rollers;
  • Cracks in the crosspiece;
  • Problems with the swing and control mechanism;
  • Problems with the gas lift

If the owner of the chair follows most of the rules for using his office chair, then the upholstery still takes the brunt of the damage. These include traces of ash or spilled coffee, and ordinary wear and tear caused by everyday contact with clothing and body parts. Replacing upholstery is not the most difficult procedure; most of the expenses will go towards finding and purchasing suitable fabric.

If you were able to determine that the failure of the chair is associated with one of the working elements, then difficulties begin here. A classic repair kit for repairing chair mechanisms must contain:

Phillips and slotted screwdrivers; Mallet with rubber nozzle; Hexagons in several sizes

However, another piece of advice is to search the Internet for information regarding repairing a specific mechanism. The set of tools can be supplemented according to the situation. Separately, it is also worth noting that repairing a gas lift on your own is a very dangerous undertaking and not always advisable. The gas lift contains liquefied air, so careless handling of this part can lead to its rupture. The price of gas lifts today is not particularly high, so we personally recommend just buying a new cartridge and replacing it, rather than risking your own health.

Our specialists are always ready to answer all your questions regarding the repair of broken parts and mechanisms in office and home chairs. If you wish, you can also order repairs to your chair from us: we always guarantee the highest quality of services and affordable prices.

Causes of office chair breakdowns

Before you begin making repairs yourself, you must:

  • understand the design of a piece of furniture;
  • find out which element is faulty.

Computer chair design

The main components of an office chair are:

  • seat and back;
  • permanent - a contact connecting the backrest to the seat and allowing you to adjust the angle of inclination;
  • armrests;
  • piastra - the mechanism by which the chair is controlled;
  • gas lift providing seat height adjustment;
  • cross with rollers, acting as support and moving mechanisms, respectively.

Main components of an office chair

Definition and causes of malfunctions

The presence of malfunctions in the operation of a gas elevator (lift, gas cartridge) is indicated by the following aspects:

  1. the gas lift does not hold the seat in the specified position;
  2. the seat does not lower or rise when operating the control lever;
  3. the seat goes down under the own weight of the sitting person;
  4. the chair is tilted from its axis to one side;
  5. the chair “swings” in different directions.

Signs of a malfunction

The main reasons for the formation of these malfunctions are:

  • lack of lubrication in the mechanism. During the entire period of use, the gas lift requires periodic maintenance, which consists of applying lubricants;

Special composition for gas lift lubrication

  • natural wear and tear. Manufacturers guarantee the operation of the mechanism for 18 – 24 months. After the specified period, it is necessary to carry out repair work or replace the main furniture units;
  • improper operation: exceeding the permissible load level, jumping on the seat, and so on.

Do-it-yourself troubleshooting

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 allow you to solve the problem even at home.

If you are racking your brain over the question: your office chair doesn’t hold its 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;
  • Remove the spring fastener from its seat;
  • Remove bearings and all fixing elements;
  • Remove the crosspiece and protective cover;
  • Remove the faulty gas lift.


Gas lift is responsible for the elasticity of the stool.
After replacing the gas lift, all elements are assembled, but in the reverse order. If you are afraid that you will forget which element was taken from where, you can record each action on camera.

Gas elevator repair

A gas lift for an office chair consists of the following elements:

  • outer casing made of high-strength metal;
  • a cylinder consisting of two reservoirs and equipped with a bypass valve;
  • a piston with a rod located inside the cylinder and intended for lowering/raising the chair;
  • button that is operated by the control lever.

Internal structure of an office chair lift

The gas elevator is a completely sealed equipment and even if a breakdown occurs, the gas cannot enter the surrounding air.

To achieve the specified level of safety in using the mechanism, gas is pumped into the cylinder exclusively under factory conditions. Therefore, you can only do partial repairs of the office gas lift yourself, which boils down to “jamming” of the mechanism in a certain position.

How to repair a gas cartridge by fixing it? To repair a lift and fix the lift at a certain level, you must:

  1. gain access to the mechanism. To do this, remove the decorative plug (if any) and the pin - lock - from the lower part of the cross at the place where the lift is attached;

Disassembly to gain access to gas lift

  1. the crosspiece with the decorative casing is removed, thereby opening access to the lift;
  2. A piece of pipe suitable in length is put on the piston. It is this element that fixes the gas lift in one position. Therefore, it is important to determine in advance the optimal seat height and the required pipe length;

Repair options

If the permanent contact or crosspiece fails, you can do the repair yourself. Broken piastres, pneumatic cartridges, and swing mechanisms will have to be replaced with new parts. The same rule applies to damaged wheels.

Replacing rollers

Over time, the rollers may fall out of the beams of the cross due to wear of the plugs, especially if the latter are made of aluminum or plastic. To repair these elements, you need to perform a number of actions:

  1. The chair is turned over so that the rollers are on top.
  2. The wheels are removed from the cross. To do this, you just need to pull them towards you.
  3. Remove the casings from the beams of the cross using a screwdriver.
  4. Damaged plugs are pulled out of the housing.
  5. Install new seals and assemble the parts in the reverse order: casings, then rollers.

A broken wheel is treated with superglue or replaced with a new one. A common cause of breakage is the accumulation of debris, hairs, and threads. In this case, the rollers are removed, cleaned, and installed in their original place.

If the socket for fixing the axle of the wheels in an office chair fails, most likely you will have to change the crosspiece.

Breakage of piastres

You can repair an office chair yourself if the technician has experience working with mechanics. First of all, it is necessary to clarify what material the crosspiece is made of. It is better to replace the plastic part immediately, since it is pointless to restore a fragile product. Restoration of piastres is carried out as follows:

  1. The chair is turned over, for convenience, its seat is placed on a chair so that the back is pressed against the floor surface.
  2. The wheels are removed from the mounts.
  3. Unscrew the 4 bolts that secure the rocking mechanism and piaster to the seat.
  4. Disconnect the gas lift by lightly tapping it with a rubber or wooden hammer. You must act carefully, otherwise the mechanism will become deformed and become unusable. The “stuck” compound is treated with a special liquid.
  5. Using a screwdriver, remove the pneumatic cartridge stopper, the washer, and then the gas lift rod.
  6. The piastra is knocked down with gentle tapping.
  7. Repairing a plastic part involves gluing and soldering, but these methods are only relevant if there is minor damage.
  8. The broken beam of the crosspiece is fixed with plastic or metal plates, secured with screws or superglue. Metal parts are restored by welding.

Repairing a computer chair must be done very carefully and carefully. Careless handling can lead to damage to the piastres or pneumatic chuck.


Unscrew the bolts


Knock down the piastra with light taps


Screw on a new one

Destruction of the swing mechanism

If the swing mechanism breaks down, you will have to replace it. The part is attached to the seat with 4 screws, so for dismantling you need to perform a number of steps:

  1. All connecting bolts are unscrewed with a screwdriver.
  2. The pneumatic cartridge is carefully knocked out of the mounts.
  3. Drill holes in the part or use adapter plates.
  4. Replace the damaged element.

A computer chair is a popular type of furniture, but most models are made in China. Domestic spare parts that can be found in the relevant departments are not suitable for them. In this case, you will have to order parts or try to repair the swing mechanism yourself (for this you will need a welding machine).

Air chuck failure

The pneumatic cartridge is a two-chamber product, inside of which there is air under pressure. The gas lift cannot be disassembled and repaired at home; only a complete replacement of the part is possible. To repair an office chair with your own hands, you must follow the instructions:

  1. Disconnect the fasteners that hold the mechanism. To do this, remove several screws from the seat.
  2. The seat is removed, the gas lift is removed, after lightly hitting the structure from the side of the cross.
  3. The mechanism is removed from the metal case using a wooden or bronze drift.
  4. A new pneumatic cartridge is installed in the crosspiece and fixed to the seat.

The mechanism may break due to careless handling of the office chair, exceeding the recommended loads, or prolonged use. Self-disassembly of the pneumatic chuck is strictly prohibited, as the technician may receive serious injuries. The optimal solution would be to purchase a new part and replace the damaged one.

Destruction of permanent contact

Thanks to permanent contact, the office chair provides reliable support for the spine. If a part breaks, you do not need to purchase a new one; you can repair it yourself. The necessary actions will depend on the nature of the failure:

  1. Deformation of the thrust spring, bending of the brackets. To restore elements, it is necessary to return them to their original shape.
  2. Wear of screw fasteners. In this case, only replacing them will help.
  3. Loose backs. Sealing the permanent contact connections will help get rid of this problem.

A step-by-step description of the steps will help you figure out how to properly repair an office chair without resorting to the services of specialists. Usually, work on replacing and restoring elements does not cause difficulties for home craftsmen. After repairs, it is necessary to follow the standard rules for operating furniture, and then the products will last longer.

Replacement of gas elevator

If the gas cartridge does not compress, and the device is required when using a chair, that is, fixing the device in one position is unacceptable, then a complete replacement of the mechanism is required.

To replace you need:

  • prepare a certain set of tools and additional materials;
  • familiarize yourself with the work flow chart.

Preparing to replace the gas lift

To replace the gas lift swing mechanism, you will need to prepare:

  • new chair lift. You can purchase accessories in a specialized store. When choosing a gas elevator, you should take into account the dimensions of the equipment and the maximum load. If you can’t determine the parameters yourself, you can use the help of sales consultants;
  • Phillips screwdriver for assembling and disassembling furniture;
  • hammer. To ensure safety, it is better to use a hammer made of rubber. Such a tool will not damage the equipment during operation;
  • ring punch;

Punch – a tool for pulling out (so-called “knocking out”) parts from holes

  • vice. You can replace the gas lift without a vice, but using a bench tool will simplify the work;
  • WD-40 liquid.

Sequence of replacement work

How to remove the old gas lift from the chair and install a new lift? The work is performed in the following sequence:

  1. treating all joints of stool elements with WD-40 liquid. This will make the disassembly process easier;

Lubricating units to facilitate disassembly

  1. seat detachment.

How to disassemble the chair? Using a Phillips screwdriver of the appropriate size, loosen the bolts securing the seat to the piastre.

Next, the chair is turned over and the seat and decorative casing are removed from the lift using rolling movements. The work can also be done by resting your feet on the crosspiece and using rolling movements to remove the chair;

Detaching the seat from the cross and gas lift

  1. disconnecting the lift from the piaster and crosspiece.

The work is done by knocking out the gas lift with a hammer with a rubber tip. To facilitate the process of disassembling the cross and the lift, you can also use a metal drift.

Before knocking out, remove the retaining ring - the pin located on the back side of the cross at the point where the gas cartridge is connected;

Removing the gas cartridge from the piastrum

  1. installation of a new gas cartridge. To do this, at the first stage it is necessary to insert the device into the crosspiece (until there is a click indicating the fixation of the element), applying some force, put on the protective and decorative casing and connect the half-assembled structure with the piaster;
  2. Assembling the computer chair in reverse order.

You can learn more about the independent process of replacing a gas elevator on a computer chair by watching the video.

Replacing a gas chair lift is not a complicated process, so even a novice craftsman can do the job on his own. If you have all the tools, a new lift and pre-processing, the work is completed within 15 - 20 minutes.

Computer chairs have long outgrown their status as exclusively office furniture. Today they are increasingly being purchased for apartments and houses, which is explained by the versatility, ergonomics and durability of the design. But even such reliable products can experience breakdowns, the most common of which are malfunctions in the gas spring. To find out the degree of wear of this part, you will have to figure out how to remove the gas lift from an office chair to repair it or completely replace it. You can cope with the task without professional help, the main thing is to know the features, the operating principle of this mechanism and strictly follow the instructions presented in the article .

Common breakdowns

An office chair is a rather complex device, which consists of a five-beam cross, a pneumatic chuck, a swing mechanism, a piastra, and a permanent contact. Any of these elements can fail. The most common types of breakdowns are:

  1. The seat does not go down or up. The problem occurs when the tip of the lever that operates the gas lift button breaks or bends.
  2. Problems with wheels. Observed if the retaining ring is missing or the bushing breaks.
  3. The chair does not hold the “horizon”. Most likely, this is due to the destruction of the swing mechanism.
  4. Back distortion. Indicates wear of the mechanisms supporting this element, loose fasteners, and manufacturing defects.
  5. Reduced stability of furniture. The most common causes are breakdowns of the gas lift or swing mechanism.

If at least one structural element of office chairs fails, further operation of the product is impossible until the problem is resolved. Repairs may require new parts to replace worn or broken parts. You can order them at service centers or from furniture manufacturers.

It is not recommended to purchase office chairs with a warranty period of less than 1.5 years. This is the type of furniture that breaks down the fastest.

What is gas lift in an office chair?

The design of such furniture is multi-component and complex, so it is not recommended to do the repair of office chairs yourself without first understanding their “stuffing”. So, the main task of the backrest is to support the spine of a sitting person. Its sizes and shapes may vary, but the angle between it and the seat is always about 90 degrees, which allows you to relax your lower back when leaning back.

The seat can be of several types, they are discussed in the table.

TypeFiller
SoftSprings, foam rubber
HardMetal, wood, straw
Semi-softPolymer materials

It is recommended to choose seats that have a rounded front edge. The width can vary from 40 to 50 cm, depth - up to 48 cm.

Armrests serve as a support for the elbows; with their help, the load is removed from the person’s spine and neck. These elements may be adjustable or non-adjustable. A piastra is a metal platform on which a lever is attached. Its function is to change the height of the seat. As for the gas lift itself, it is a steel cylinder filled with inactive gas. It adjusts the product in height, it can be long, medium and short. There is also a cross - a load-bearing component of the structure. It is a large-diameter base with rays, their optimal number is 5 pieces. It is the cross that bears the main load.

The crosspiece is made of metal or plastic - in the first version the chair itself will be heavier.

Rollers are used to move the computer chair. They are made from polymers, polyurethane or nylon. All these components are the main components of the design. In addition to them, manufacturers equip products with additional mechanisms that improve the functionality of office furniture.

Types of crosspieces for chairs

Before removing the crosspiece itself, you should take into account that the chair can be broken if you apply too much force (the gas cartridge is especially easy to damage). Therefore, we recommend viewing thematic lessons that tell you how to properly remove the cross from an office chair. The video describes the following actions:

  • We remove the rollers from the unnecessary cross and disconnect the lifting mechanism from the chair. To “knock out” the lifting mechanism, you will need to make several blows with a hammer on the gas lift.
  • Using a flat-head screwdriver, pry off the ring located in the center of the cross. There will be 5 protrusions on the ring that secure the plastic casing. You will need to bend the edges of the protrusions and carefully move the casing away. After this, the cross will be removed.

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The next step is to replace the old product with a new one.

Replacing the mechanisms of a computer chair can be easily done at home. The video explains in detail how to change the crosspiece of office chairs. The replacement proceeds as follows:

  • The plugs are removed from the steel body, after which new ones are installed inside.
  • A casing is put on each “branch” of the cross, then the casings are secured with retaining rings to the center.

At the end, wheels are attached to the legs of the office chair and the product is connected to the gas lift.

If you don’t want to think about how to change the crosspiece in your office chair, we recommend looking at the Baltofis catalog and choosing reliable furniture.

An office chair is an integral part of any office. It is also used as a piece of home furniture. They must have a stable design, be light and comfortable. For ease of use, all chairs are equipped with a lifting mechanism. It rests on the crosspiece. Since the latter receives the greatest load, it is subject to wear and, as a result, may fail. To replace it, you can go to a workshop, or you can do it at home.

In order for a computer or office chair to last as long as possible without any breakdowns, it is necessary to care for it and follow certain rules.

  • About once every six months you need to inspect all the furniture parts, check the tightness of the connections and whether all the nuts and bolts are tightly tightened;
  • Fabric parts must be cleaned with a vacuum cleaner. If there are stains, you can use various stain removers;
  • If the upholstery is made of leather, it must be wiped with a damp cloth soaked in a special solution;
  • It is worth considering the maximum load of the chair used;
  • There is no need to sit down suddenly on the seat to avoid breaking the crosspiece or gas lift;

If you follow the necessary recommendations, your office chair can last for many years.

The products differ in several aspects; let’s look at each of them in more detail.

Dimensions

IllustrationDescription

Models with a diameter of 50 mm.
The most widespread solution, found in almost 90% of cases. Used for the entire segment of budget products and most options in the mid-price and premium segments. This type is considered a standard and has proven itself well among users. Another advantage is its affordable price, which allows you to carry out repair work at minimal cost.

Crosspieces for chairs for gas lift with a diameter of 38 mm. This solution is much less common and is used in premium-segment products, most often executive chairs with a stylish design. There is no particular difference in the design, the only difference is the narrow mounting hole into which the shock-absorbing element is placed.

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IllustrationDescription

Models for child seats. Most often, products with a diameter of 480-560 mm are used; they provide the necessary stability and do not take up much space. There are a lot of modifications and types of execution, as well as colors, since children's models are produced in a wide range and are distinguished by the brightness of their colors.

Crosspieces for office and computer chairs.
Here, options with a diameter of 600-640 mm are most often used; this type can be called the most popular, since it is what is used in the majority of models sold. Finding such a solution will not be difficult, since all sellers keep this particular variety in stock as the best-selling one.

Options for executive chairs. This solution has a diameter of 700 mm and provides the best stability, so it is ideal for massive structures, as well as for models with a reclining backrest, in which the center of gravity can shift significantly.

Another important factor is the diameter of the mounting hole for attaching the wheels. There are only two varieties:

  • 11 mm. The most common solution today, it is used in the vast majority of models and is available for sale in all furniture fittings stores. There are many design options, so you can easily select suitable rollers for any type of floor covering.
  • 10 mm. This type of pin is much less common and is often used in wooden crosspieces and in designer models. In terms of its performance characteristics, this option is practically not inferior to the one described above, but in many regions there is a problem with purchasing such wheels, since they are bought very rarely, most sellers simply do not keep them in stock and carry them only to order.
IllustrationDescription

Wooden crafts. The most attractive option, distinguished by a respectable appearance. Most often used in executive chairs with wood trim.
The manufacturing material is hard wood, as only they provide the necessary strength.

The central console is made of metal and has wooden beams on it, in which a sleeve cap is used to install the rollers, the internal diameter of which is 10 mm. This is the most problematic place; often, when you have to dismantle the wheels, the bushings are pulled out along with them. You have to strengthen the seat with adhesive compounds, but if it is already broken, this will not give the desired effect.

Crosspieces with wooden overlays. This type is a steel frame with wooden panels fixed on top. This design provides a number of advantages:
  • Attractive appearance. The exterior finish is indistinguishable from a solid wood cross, since all joints and joints are hidden and only the wooden surface is visible from above.
  • Strength. A steel frame does not have the disadvantages of wood, it is durable, the holes in it do not break and the material does not deform from exposure to moisture.

Chromed steel structures. An excellent solution that combines affordable cost and very high strength. The products are made of steel, and the surface is chrome-plated to give it a more attractive appearance and protection against corrosion.
The element looks great on armchairs and remains attractive for a very long time, the main thing is not to damage the coating.

Another advantage is that there is a wide variety of modifications, so choosing the optimal solution to replace the old damaged crosspiece will not be difficult.

Polished aluminum products.
A modern solution, characterized by an attractive appearance and high strength, the elements can withstand loads of up to 150 kg. The disadvantage of this type is the relatively high cost, but if you consider that such crosses are used mainly in executive chairs, then the costs are completely justified.

Plastic crosses. The most common solution today, which has the following features:
  • Low cost. This is the most budget solution available to most buyers.
  • Good strength indicators. Modern polymer raw materials make it possible to obtain reliable products that can withstand loads of 100-120 kg.
  • Huge variety of options. There are so many solutions that choosing the right solution will not be difficult.

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Causes of failure

Computer chairs, when used correctly, last for many years. In the event of a manufacturing defect in the gas spring, the furniture can be replaced, especially if it has a warranty. But replacing the gas lift, either with your own hands or with the help of professionals, may also be necessary if the product is used incorrectly. Main causes of breakdowns:

  1. Creating an advantage. It is not recommended to sit on one side of the seat; you need to sit in the middle.
  2. Irregular furniture care. It is recommended to lubricate parts at the intervals specified in the instructions for use.
  3. Frequent placement of two people on one chair. The structure can support a weight not exceeding 120 kilograms.

It is not recommended to sit down from a jump or run, otherwise there is a high probability of the gas spring breaking, as a result, you will have to change the gas lift on the office chair, which will entail additional financial costs.

Rules for using office chairs

In order for the chair to serve for a long time and not cause inconvenience due to breakdowns, it is recommended to follow the following simple rules:

  • The chair should be located in a dry, well-ventilated area.
  • If for some reason the chair was in a low temperature zone (for example, it was transported in winter), it cannot be used immediately; it must be given time to adapt. Minimum time is 24 hours.
  • During the assembly process, be very careful and careful, especially with regard to screw-on parts - do not strip the threads.
  • Make sure that the load on the cross is not excessive.


Handle your office chair with care.
Experts remind that one chair is designed for use by one person. If a huge number of people use it, it will have sad consequences. You need to sit down on an office chair very carefully, avoiding sudden movements.


If the damage is minor and does not require complete replacement, a welding machine is required for repairs.

The armrests also need to be treated with care. You should not press on them, much less sit down. For overweight people, it is better to purchase designs with metal elements.


In the event of a complete breakdown, you need to buy a ready-made part.

You can repair an office chair yourself without resorting to the services of a professional technician. And if you follow the operating requirements, it will serve you faithfully for many years.

The process of dismantling a part depending on the type of base

If the structure no longer rises and locks in the desired position, it means that the gas lift on the office chair needs to be repaired. You can do this yourself. The algorithm of actions will be almost identical for both plastic and metal bases.

Plastic

Dismantling of the structure, the base of which is plastic, occurs in a certain sequence. If a person is changing a gas cartridge for the first time and does not know how to remove the gas lift from office chairs, he will need an assistant. Instructions:

  1. Unscrew the bolts located under the seat. Carefully remove it from the mountings.
  2. Stand on the crosspiece and gradually, using rocking movements, pull the chair up by the armrests. Set it aside.
  3. Use a rubber hammer to apply several light, precise blows to the body of the structure from the side of the cross - the gas lift should come out of the base gradually.

After this, you need to replace the part and perform the same steps in reverse order.

Metal

The principle of removing a gas spring from a metal base is similar to the previous one. The only difference is that some manufacturers use fragile material in the manufacture of the structure. Therefore, it is recommended to be careful when knocking out the gas lift. The blows should be weak so that the cross does not crack .

In fact, repairing an office chair gas lift with your own hands is a simple process. If you approach the solution to the problem responsibly and study all the nuances, you can repair the furniture yourself and very quickly, rather than spending money on a new product.

An office chair is falling down - how to fix it?

It is very comfortable to be at a computer desk in a comfortable office chair. This piece of furniture is very popular among office workers and simply lovers of comfort. But some consumers, after a certain period of time, become puzzled by the imperfection of the chosen item. For example, most often an office chair falls down - we will tell you how to fix it in this article. We'll tell you how to repair and adjust the gas lift, how to raise the height and prevent it from spinning. Why doesn't the chair maintain its height spontaneously when you sit down?

We are repairing a chair on wheels

This type of furniture is more susceptible to wear and tear than the same Soviet wooden chairs. Daily use quickly deteriorates the mechanisms and hydraulic parts that make up the structure.

But then another interesting question arises: why do some people’s chairs break down after two months, while others’ chairs last for years? Often this circumstance is due only to the quality of the materials of a particular model. First, of course, you need to pay attention to the fact that modern models can only withstand up to 130 kilograms, and the manufacturer provides a warranty of about 12-18 months.

But if it happens that the chair is broken, and the warranty card has not been valid for a long time, then with a little skill you can do the restoration work yourself.

Important! If you are not confident in your abilities, it is better to contact special service centers.

The problem and its solution

If it happens that the seat itself lowers when you try to sit comfortably, and rises synchronously with you, and this period of raising or lowering varies from one second to twenty-four hours, then the problem clearly lies in the gas escaping from the gas cartridge.

Important! The gas flits themselves cannot be repaired, since disassembling such a component can be hazardous.

In this case, you will have to take the damaged furniture, fix it in the most convenient position and begin replacing the old gas cartridge with a new one.

Important! The cost of such a part is low, which significantly reduces the cost of all work.

If you're still wondering how to fix an office chair, then you'll have to do a little preparation.

What will be useful?

In order to fix an office chair if it falls down, you need to acquire the following tools:

  • Furniture chair.
  • Set of different screwdrivers.
  • Mallet.
  • A drift made of metal material.
  • New gas cartridge that will fit your furniture.
  • A vice that will make the work process a little easier.

Important! If for some reason the repair takes place in the cold, then there is a possibility that the liquid in the gas elevator has frozen, and in this condition this part cannot be used. Wait until it reaches room temperature completely (this may take about a day).

Replace a broken component

Well, for a successful result you should follow these tips:

  • We take a shaped screwdriver in our hands and proceed to dismantle the seat from a special “swinging” mechanism, or piastres. Simply turn your office chair over, mark the rocker side of the face, and remove the four screws that secure the chair seat to the rocker mechanism. You can move the housing to the side.
  • Remove the protective cover and take the gas cartridge in your left hand so that the mechanism is facing down. Apply medium force blows while tapping the base of the gas lift. Make sure that the mechanism itself is not deformed.

Important! If you can’t dismantle the structure, use a vice and turn the installation around.

  • If the structure has been removed, then you can safely knock out the broken component from its cross: simply turn the parts over with the rollers facing up and use a metal drift to carefully knock the part out of the cone.

Important! Be careful not to cause mechanical damage to the front part of the cross and the stiffeners.

  • If the component has been dismantled, then further work will go like clockwork. We assemble the chair by screwing the rocking mechanism to the backrest seat, making sure that everything corresponds to its position.
  • Now we simply lower the cross onto the wheels and remove the transport cap from the gas cartridge. We insert a new component into the structure, forgetting about the correspondence of the diameters of the parts.
  • We put the protective casing and housing in place. If all the steps were completed without errors, you can press your hands on the surface of the case and check the functionality of all elements.

Important! If there are any problems with the new element, then there is a possibility that you are faced with a manufacturing defect. Before contacting the manufacturer, check that the button on the element is secured using a lever. It is also not recommended to press the button while the component is in your hands.

material

Repairing a chair on wheels is a fairly simple procedure for those who have already dealt with similar structures. If you are new to this business, then we hope that these instructions have helped you.

Source: https://serviceyard.net/sovetyi/ofisnyiy-stul-opuskaetsya-vniz-kak-pochinit.html

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