Office Chair Structure Repair

Office chair structure repair requires different methods depending on the damage. Common repair methods are as follows:

Repairing an office chair that leans to one side

1. Check the wheel status
   Place the chair upright and upside down to ensure all wheel feet are in contact with the ground. If any wheels are damaged (e.g., broken or deformed), purchase matching new wheels for replacement.
2. Remove old casters
   • Grasp the wheel and the bottom of the chair with your hands and pull it out forcefully; if it cannot be removed manually, insert a flat-head screwdriver into the gap between the wheel foot and the chair contact point as a lever.
   • In rare cases, casters are fixed with screws and need to be removed by loosening the screws with a screwdriver.
3. Lubricate the base sockets
   Spray a small amount of lubricant (such as WD-40) on each chair base socket, or apply a pea-sized amount of petroleum jelly to the wheel axle to reduce friction and prevent jamming.
4. Install new casters
   Align the rod of the new caster with the base using a rubber mallet and gently push it in; if it is not in place, tap it lightly with a rubber mallet until fully inserted.
5. Test the repair effect
   Turn the chair upside down and check if the wheels roll smoothly. If it still leans, further inspect the seat plate for damage (e.g., deformation or breakage).

Repairing an office chair with mortise-and-tenon joints

1. Disassemble and mark
   Disassemble the chair in the original assembly order and mark each component with a serial number for easy subsequent installation.
2. Clean the dust
   Use a high-power air gun to blow away dust, avoiding washing with water or a damp cloth. If there is cement slurry or chemical paint, remove it with physical means (such as a scraper) or fine sanding tools.
3. Remove the old paint
   • Use fine sandpaper to sand or scrape off the old paint, taking care to protect the carved parts.
   • If using a paint remover, wear protective gloves and a mask to avoid skin contact.
4. Reassemble
   Assemble in the original structural order, ensuring that the component order and position are correct and that the mortise-and-tenon joints fit tightly.
5. Touch up the paint and sand
   • Sand the worn areas with sandpaper to ensure paint adhesion.
   • Apply varnish evenly to prevent color differences; after drying, repeat the application 2-3 times until the desired gloss is achieved.