I have an office chair I bought about 3 years ago. It might stay up when you are not in it, but sinks as soon as you settle down for work. I don't need the chair height to be adjustable, but to just stay at the maximum height all the time. The pneumatic cylinder makes the chair to raise or lower to support your weight. Computer chairs are not intended to last forever, and, sooner or later, things will start to go wrong. Then, set the chair to your preferred height, laying it on its side if you need to so it stays in place. For the same reasons you adjust the seat in your car to become more comfortable as you drive, you should adjust your office chair to … It goes down with the lever, but not back up when I sit in it. My computer chair won't stay up. Office Chair Sinking Height Easy Cheap Fix! My computer chair won't stay up.? Replacing it is easy and inexpensive, and you can save money by doing it yourself. whenever i sit in my computer chair i have to keep letting it back up and it sinks back down. Sitting in an incorrectly adjusted office chair for eight or more hours a day can make you nearly as sore as standing on your feet all day. this just started a few days ago. If you have an office chair that won’t go up or down, this is the problem. Such chairs might stay up when not in use but sinks once you sit on them for work. is there something i can do? If the seat of your Herman Miller Aeron Chair won't go up and down anymore, and it's stuck in it's lowest setting, the height adjustment is broken. How To Fix An Office Chair That Won’t Stay Up – The P neumatic Cylinder. I'm pretty handy, but didn't want to waste time replacing the cylinder. Does it leave you with a SINKING feeling? Keeping a swivel chair from turning requires a few basic tools. Such chairs might stay up when not in use but sinks once you sit on them for work. i have just had it for a few months. In most cases, people think of acquiring replacements when they experience this issue with their office chairs. i have just had it for a few months. How can I fix an office chair that is now too low and won't "pump" up higher? Most task chairs have lift mechanisms with a pneumatic cylinder that uses pressurized air which allows you to control the height of the chair. I used an Office Chair Buddy to fix my sinking desk chair. To do this, turn the chair upside down, push the retaining clip at the base with a screwdriver, and pull off the wheels, then the skirt. One of the first things to go on an old office chair is the height adjustment. The fault lies in the gas cylinder that sits in the upright of the chair beneath the seat. Then don't worry here is a easy fix. For people who have problems with their home office chairs, many times these issues can be corrected.The first step is determining that you've selected the correct chair style and are following any advisory information provided by the manufacturer regarding usage and weight ratings.