How to Remove the Cricket of a Chair: A Complete Repair Guide

The irritating creak that occurs with each turn or tilt can turn a comfortable job into torture. This sound not only distracts from important tasks, but also signals that the mechanism of your work is not enough. chair It requires urgent attention. Ignoring the problem can lead to a complete failure of the expensive swing mechanism or even injury.

In this article, we will discuss in detail why there is friction of metal against metal, how to correctly diagnose the source of noise and which lubricants are best suited for different nodes. You will learn how to conduct an audit without calling the master and return the furniture to its former quietness.

Before you start active actions, you need to understand that different types of creaks require fundamentally different approaches to treatment. Somewhere it is enough just to drop the oil, and in another case, you will need a complete dismantling of the unit and replacement of bearings. Let’s determine what exactly you are facing.

Diagnosis: Looking for the source of extraneous sound

The first step in the struggle for silence is to determine exactly where the sound is coming from. It often seems to creak under the seat, but on closer listening it turns out that the problem lies in the presence of the head. gaslift Or the wheels joining the cross. To make a good diagnosis, you will need an assistant who will slowly perform movements while you listen.

Start by visually inspecting all visible compounds. Pay attention to the presence of rust, chipped paint or obvious gaps in the docking places of parts. If you find out corrosion On metallic elements, it's almost guaranteed to be a source of unpleasant sound. Rust destroys the smooth surface of the metal, creating roughness, which, when friction, emit a characteristic screech.

Try to load different parts of the chair in turn. Sit still and sway back and forth. Then lean to the sides. If the sound only appears when the backrest is deflected, the problem is in the fixing mechanism or in the place where the backrest is attached to the seat. If the hum is a constant background, most likely, the matter is bearing rotating elements.

• 🔍 Listen to the nature of the sound: a deaf knock indicates backlash, and a ringing creak indicates dry friction.
• 👐 Swipe your hand through all connections during movement: vibration will tell you where exactly the tightness of the node is lost.
• 🛠️ Check the tightening density of all visible bolts: sometimes the source of noise is simply a sprawling thread.

Do not forget about the state of upholstery and filler. Sometimes the fabric rubs against the plastic elements of the frame, creating the illusion of a breakdown of the mechanism. Make sure that foam-stuff It does not shift or create friction against metal stiffness ribs inside the seat.

Necessary tools and lubricants

To successfully eliminate the creak, you will need a minimum set of tools that can be found in any home. The main thing is to choose the right lubricant, since the use of the wrong composition can only aggravate the situation, turning the dust into abrasive porridge.

The main tool will be a set of screwdrivers (cross and flat) and hexagon keys. Often, hexagonal They are required for disassembling modern furniture models, since manufacturers hide fasteners deep in the design. Passatages may also be needed to remove locking rings or plugs.

The choice of lubricant is a critical point. Not all oils are equally useful for different chair nodes. Below is a table to help you choose the right composition for a particular situation:

Type of node	Recommended lubrication	What to avoid
Wheel bearings	Silicone lubricant, Litol-24	Water, liquid engine oil
Swinging mechanism	Graphite lubricant, Solidol	WD-40 (as the main lubricant)
gaslift	Silicone spray (surface)	Thick, consistent lubricants
Plastic bushings	Silicone Teflon spray	Petroleum products (corroding plastic)

Particular attention should be paid to aerosol lubricants with a spray tube. They allow you to deliver the composition to hard-to-reach places without a complete dismantling of the mechanism. However, remember that many sprays tend to wash out quickly, so it is better to use permanent nodes. greasewhich are placed inside when assembled.

⚠️ Never use WD-40 as a long-term lubricant. It is a solvent with the addition of oil, which quickly evaporates and washes out the remnants of the factory lubricant, after which the creak returns with a vengeance.

Elimination of squeak in the swinging mechanism

The swing mechanism (top-gan or multiblock) is the heart of your chair, taking on the main load. It is here that most often there is friction of metal against metal due to drying of the factory lubricant or dust.

First, try to lubricate the knot without disassembling. Turn the chair over or put it on your side. Find the moving joints of the mechanism. Using a spray tube, profusely apply lubrication to the gaps between moving parts. After that, you need to actively work with the mechanism 10-15 times to make the composition penetrate inside.

If surface treatment does not help, you will have to remove the mechanism. It is attached to the bottom of the seat with four bolts. By opening them, you will have full access to the insides. Here you can find that sleeve-sleeve The thick lubricant has worn or dried. The old composition should be removed with a rag, and the new one should be applied with a spatula or finger (in a glove) evenly over all rubbing surfaces.

When assembly, pay attention to the state of the spring mechanism. Sometimes it can touch the body, making a metal ring. In this case, it is enough to slightly bend the turn or put a piece of dense tissue / rubber at the contact point.

Repair and lubrication of the gas lift (pneumopathron)

Gaslift is a sealed node and ideally it should not require maintenance. However, over time, the rod can begin to make sounds when moving up and down or when rotating. Most often, the problem lies in the contamination or corrosion of the top of the rod entering the glass.

To eliminate the creak of the gas lift, it is not necessary to disassemble it (this is dangerous and almost impossible without special equipment). It is enough to thoroughly clean the visible part of the chrome rod from dirt and old lubricant. Then apply the layer. silicone lubricant All around the rod.

Move the rod up and down several times so that the lubricant goes under the omentum. If the sound makes the connection of the gaslift with the cross, try to propel them. Sometimes cone landing eventually loses density, and the metal begins to rub against the metal when loaded. In this case, winding the connection site with fume tape or a thin layer of rubber before re-installation will help.

Can I lubricate the gas lift with oil?

Use of liquid oils (machine, spindle) for a gaslift is not recommended. They are too fluid and can damage the rubber seals inside the coils, which will lead to depressurization and fall of the chair. Use only inert silicone compounds.

It is important to understand that if the gas lift makes sounds of "pitching" or drops sharply under the weight of the body, no lubrication will help. It's a sign of depressurization of the pneumo-cartridge. In that case, The only solution is to replace the gas lift completely. New, because this unit is not subject to repair.

Scream of wheels and crosses

The wheelbase is often left unattended, although it is the one that takes the blows when riding on the floor. The screeching here usually occurs in two places: in the axis of rotation of the wheel itself or in the place of attachment of the wheel to the cross.

Remove the wheel from the cross nest. Look at the axis. If it has wound hair or threads, they must be removed - they are the main enemy of bearings. After cleaning, grease the axle and the inside of the wheel abundantly. For wheels, lubricants that do not attract dust are best suited, for example, Teflon.

The cross itself (five-pitched base) can creak in the places of fastening of the gaslift or in the joints, if it is composite. Plastic crosses can creak due to microcracks or material stratification. In this case, the lubrication will only give a temporary effect.

If you have a metal cross, check the welding places of the rays. Sometimes microcracks in the weld give a characteristic sound when tensile load. Visually, you may not notice this, but when pressed, the sound will be clear. These chairs require a replacement of the base.

Prevention and care of furniture

To avoid the question of how to remove the creak of the chair every six months, it is important to follow simple rules of operation. Regular prevention prolongs the life of the mechanisms and maintains comfort.

Every six months, you will audit all connections. Wipe the dust off the machinery as it mixes with the lubricant and turns into an abrasive. Watch for the cleanliness of the floor: small debris, getting under the wheels, clogs the bearings and accelerates their wear.

Don't let the chair overload. Each machine has its own strength limit. If you weigh more than the limits specified in the passport, the nodes will experience extreme friction, and no lubrication will last long. Also avoid sharp jerks and swings "on the edge" - this destroys the structure of metal and plastic.

⚠️ Note: When cleaning your chair, do not use aggressive chemicals (solvents, acetone) next to plastic and rubber elements. They can break the structure of the material, making it brittle and creaky.

Frequently Asked Questions (FAQ)

Why does the chair creak immediately after purchase?

A new chair may creak because the parts have not yet been rubbed together. It is also possible that the plant saved on lubrication or poorly tightened fasteners. Give the furniture a couple of days of work, and if the sound does not pass, tighten the connections.

Can sunflower oil be used for lubrication?

Absolutely not. Vegetable oils eventually dry out, oxidize and turn into a sticky substance that sticks together parts and attracts dust. Use only technical lubricants.

How do you know if it’s time to change the gas lift, not lubricate?

If the chair spontaneously falls under the weight of the seated person, does not hold the height or makes sounds of etching gas ("psh"), then the tightness of the valve is violated. The lubricant is powerless, we need to replace the knot.

How to lubricate plastic sleeves so that plastic does not corrode?

For plastic elements, silicone lubricants without petroleum products are best suited. Conventional oils and solidols can cause swelling or destruction of certain types of plastic.