Office Chair Sway Repair
The repair of an office chair's sway can be carried out following these steps:
First, check for wheel issues. Examine whether the wheels are uneven when the chair is placed upright and upside down. If the wheel feet at the bottom of the chair, which can rotate vertically and horizontally, are bent or deformed, the chair will tilt in that direction. Place the chair upright and confirm that each wheel foot is in contact with the ground. Then, invert the chair and check each wheel foot for signs of damage. Casters may bend or break due to uneven weight distribution, manufacturing defects, or general wear and tear. If damaged wheels are found, you can purchase a new set of matching wheels, contact the chair manufacturer for the model number to order matching wheel feet, or take the old wheels to an office supplies store to find a matching replacement set. Pay special attention to matching the shape and size of the wheel axles.
Remove the old casters. Hold the wheel of the caster with one hand and the bottom of the chair with the other hand, then pull firmly. If you cannot pull out the caster foot by hand, insert the blade of a flat-head screwdriver into the small gap between the wheel foot and the chair's contact point. Use the blade as a lever and operate it back and forth slowly. Once the wheel foot rod is pulled out of the chair socket by about 1 centimeter (0.39 inches), pull on the wheel foot again. In rare cases, the casters are fixed to the bottom of the chair with screws. If you see screw heads at the connection between the caster and the chair, use a screwdriver to loosen the screws and remove the casters.
Apply lubricant. Apply a small amount of spray lubricant to each chair base socket. You can use spray lubricants such as WD - 40. Insert the straw into the spray nozzle, insert it into each socket, and spray quickly for about half a second per socket. If you do not have a lubricant spray, you can apply a pea-sized amount of petroleum jelly to the axle of each wheel.
Install the new casters. Use a rubber mallet to hammer each caster into its chair socket. Align the rod of the caster with the intended base, gently push the caster with your hand. If it does not click into place, pick up the rubber mallet and gently tap the caster until the rod is fully inserted into the base. If the caster design allows tapping near the base of the stem, prioritize this area to reduce the risk of the new caster deforming or breaking.
Test the repair effect. Turn the chair upside down and sit on it. If it rolls smoothly and evenly without tilting to one side, the repair is complete. If the chair still tilts, continue to check the seat plate for damage. Lay the chair on its side and locate the metal seat plate. The seat plate is usually a roughly square-shaped black painted steel plate located at the bottom of the chair seat, connecting the single-leg cylindrical column of the chair to the seat plate.
