One, Why can't the lifting chair be raised anymore?
The current lifting mechanisms for lifting chairs are primarily divided into three types: hydraulic, mechanical, and pneumatic. If a lifting chair is not lifting, there are three possible causes: 1) The adjustment handle and its associated mechanism are faulty; 2) The pneumatic cylinder is malfunctioning; 3) Someone is sitting on the chair, preventing it from lifting. The chair must be empty when lifting and must be loaded when lowering.
If it's the first situation, the only option is to have the vendor or manufacturer repair it. If it's the second situation, you can either do it yourself or have the manufacturer repair it. If it's the third situation, simply pay attention to the usage during application.
Two. What should I do if the lifting chair won't go up?
If the pressure gauge fails, simply replace it. The following steps outline the process:
1. Turn the computer chair upside down and lay it flat. First, remove the chair's base, which is difficult to detach. In this case, you will need a tool, such as a hammer or mallet (preferably a rubber mallet), to avoid damaging the paint and leaving small pits. Place the hammer along the bottom steel ring and strike it firmly in a circular motion, then try to pry it apart. If that doesn't work, continue hammering and prying.
2. The base was removed, leaving the hydraulic cylinder and upper support. The hammer is then used for further work.
3. Before hammering, remove the upper seat using a screwdriver to facilitate subsequent hammering and forceful removal.
4. Similarly, use a hammer to forcefully strike the metal plate, while holding a hydraulic jack with one hand and using your foot to operate it. After removal, simply install the new one.