In the same way that can happen with any other type of product or item that you buy. Let me tell you that office chairs also tend to have problems after a few years of use. For the simple reason, that the more use you give your chair and the cheaper it is, the sooner you will notice that you are going to have problems, such as for example that it begins to sink and lower itself.
When you start your search for a new office chair, you will probably notice that most of them will allow you to adjust the height of the seat thanks to the help of a cylinder that normally is filled with gas inside. However, with time and use, your chair will begin to sink and lose the pressure it brings with it in its gas tank.
For this reason, we have prepared a small guide for you on what to do when your office chair starts to sink or drop by itself.
Guide to Fix Sinking Office Chair
Gas loss is the problem
The cylinder of your office chair is that part of the chair that connects the base to the seat and is welded together. And it is what allows us to adjust the chair and allow it to move from top to bottom. Inside the chair cylinder, there is a piston that is actuated using nitrogen gas. So when you pull on the chair lever, the nitrogen gas is changing the chambers inside the cylinder, allowing it to move up and down.
With time and continuous use of your desk chair, the seal on the cylinder begins to wear out and the gas comes out in liquid form where there will be a certain leak in some models the screw that holds it loose. After these events, the damaged cylinder will cause the chair to sink.
The quality of the paint materials is key to avoiding gas losses
There are a number of components that make up an office chair. These components include: the base generally consists of 3, 4, or 5 wheels. A cylinder of gas stores compressed air and is equipped with a telescopic cover. The seat is fitted with a plate holding adjustable lever and a support pad.
Essentially, a desk chair is built around a single-acting cylinder that has a piston that has been filled with air. When activated by someone pushing the lever, further compressing the air inside the chamber, resulting in a lifting motion allowing the seat to be raised. As the piston moves further out of the chamber, air expands inside and allows the seat to lower, and as a result, the chair will be higher.
For this reason, it is necessary to have the knowledge that the chair that we are going to buy has quality components. Since these will take care of giving a long life to your desk chair, if not, over time you will have a headache and two options to choose from:
1) Repairing the cylinder of gas your chair
2) Buy a new one.
How to fix gas loss?
The repair of the piston is one of the methods out there to resolve the gas loss of the office chairs and the best of all is that is not as expensive as people think. This is because the piston itself can be replaced by a new one or this same system can be easily locked without having to modify its design, which in itself is quite complex.
It is important to remember that this piston mechanism is a cylinder that is normally housed within a cylinder column. Instead of operating with liquid, like the piston in your car, it runs on compressed air.
The lever helps you to adjust your seat controls, compression, and decompression of the air, which in turn sets the desired height of your chair. When this mechanism fails, basically you have to buy a new pneumatic cylinder to restore the adjustment function. It is important to note that the entire system is sealed.
The cylinders to the waste gas can be machined manually and thus leave a little more profitable. Fortunately, chair manufacturers offer spare cylinder packages that you can purchase and thus keep your office chairs in optimal condition.
How to repair the piston of our office chair
To repair the piston follow the steps that we will mention below:
Lay the office chair on its side, making sure the air cylinder is fully extended.
Remove the wheel assembly brings chair removing the retaining clip base. It consists of a small metal clip, of the center pole of the bottom of the wheelbase. Remove it by grasping it with a pair of needle-nose pliers.
Place a socket wrench on the top post of the chair cylinder, just below the seat tray. Squeeze the key around the post and move the key back and forth. Trying to loosen the cylinder from the seat tray. These gas cylinders are only held in place by friction and can be difficult to release from the chair.
Spray some lubricant (suggested to use WD-40) around the top of the cylinder post where it meets the seat tray if you are having trouble removing it from the office chair. Once the lubricant has been in the chair for a few minutes. Try to remove the cylinder again, using the socket wrench.
Replace the old pneumatic cylinder on the chair with a new one by pressing it into the slot at the bottom of the seat tray and replacing the base of the chair.
Place the chair upright and sit down firmly on the seat tray, using your full weight. This will seat the pneumatic cylinder firmly on the seat tray, giving new life to your old office chair.