Office Chair Leg Removal
The methods for removing office chair legs vary depending on the type. Here are the specific steps for common types:

Removing the Legs of a Massage Chair
Removing the legs of a massage chair is relatively complex, mainly involving the separation of air tubes and wires. First, locate the clips that connect the leg air tubes and wires, usually found near the connection point between the legs and the chair body. Once located, carefully pull out the clips to ensure the separation of the air tubes and wires. During this process, be mindful of applying moderate force to avoid damaging the air tubes or wires. After separation, hold both sides of the legs firmly, keep them steady, and slowly lift the legs upward until they are completely detached from the chair body.
Removing the Footrest of the Sihoo C Series (C300/C500)
Removing the footrest of the Sihoo C Series (C300/C500) is relatively simple, as it is usually secured by three screws. Before removal, prepare the tools that come with the chair, such as a screwdriver. Locate the three screws that secure the footrest, typically found at the edges of the connection point between the footrest and the chair body. Use the screwdriver to unscrew each of the three screws one by one, and be sure to keep the screws safe to avoid losing them. Once all the screws are removed, the footrest can be easily taken off.
Removing Chair Legs Made of Metal with Rusty Screws
Removing chair legs made of metal with rusty screws is more challenging and requires some special methods. First, use WD-40 penetrating oil and spray it into the gaps at the screw joints. Wait for about twenty minutes to allow the penetrating oil to fully soak in, providing lubrication and rust removal. After that, use a wrench to grip the screw head and gently tap the handle of the wrench with a hammer to loosen the rust layer through vibration. If the screw head is hexagonal, insert a hex wrench into it and then place a metal tube over it to extend the lever arm, increasing the force needed to turn the screw. If all the screws cannot be turned, use a blowtorch or soldering iron to heat the screw area for a few tens of seconds, utilizing the principle of thermal expansion and contraction to break the rust layer. However, be aware that heating can damage the paint finish. Finally, if none of the above methods work, use an angle grinder to cut off the old screw heads. After removing the chair legs, replace them with a new set of screws and reinstall them.



