Office Chair Repair and Disassembly

The repair and disassembly of an office chair can be carried out according to the following steps. You will need tools such as a rubber mallet, a flat-head screwdriver, a spray lubricant (such as WD - 40), or petroleum jelly.

Disassembly Steps

1. Separate the Bottom Tray from the Seat Cushion: Place the chair upside down on the ground. Use a screwdriver to remove the screws that secure the bottom tray, separating it from the seat cushion. After that, you can further disassemble the base, the gas lift, and the chair legs to check for fault locations and replace parts as needed.
2. Disassemble the Base: Hold the chair upside down with one hand and strike specific positions on the base with a rubber mallet. If you don't have a rubber mallet, when using an iron hammer, place a towel on the surface of the base to prevent the paint from being scratched. After striking several times, the base can be separated.
3. Disassemble the Gas Lift: Keep the chair upside down and use a hammer to strike the bottom of the gas lift evenly from the side. Be careful not to strike the middle button of the gas lift with a flat surface. If the height of the button is higher than the bottom of the gas lift, do not strike it to avoid damaging the gas lift.
4. Disassemble the Wheels: In general, you can directly pull out the wheels forcefully. If they are difficult to remove, hold the wheel of the caster with one hand and the bottom of the chair with the other hand and pull hard. If the caster foot is stuck and cannot be pulled out, insert the blade of a flat-head screwdriver into the small gap between the caster foot and the chair, use the blade as a lever and operate it back and forth slowly. Once the caster foot rod is pulled out of the chair socket by about 1 centimeter, pull on the caster foot again. In rare cases, the casters are fixed to the bottom of the chair with screws. If you see the screw heads, use a screwdriver to loosen the screws and remove the casters.

Repair an Office Chair That Leans to One Side

1. Check the Wheels: Check if the wheels are uneven when the chair is placed upright and upside down. Make sure each caster foot is in contact with the ground. Check each caster foot upside down for signs of damage. If you find damaged wheels, purchase a new set of matching wheels. You can contact the manufacturer and provide the chair model for an order, or remove an old wheel and take it to an office supplies store to find a matching replacement set. Pay attention to matching the shape and size of the wheel axles.
2. Replace the Wheels: Apply a small amount of spray lubricant (such as WD - 40) to each chair base socket. Insert the straw into the spray nozzle and insert it into each socket for a quick half-second spray. If you don't have a lubricant spray, apply a pea-sized amount of petroleum jelly to the axle of each wheel. Use a rubber mallet to tap each caster into its chair socket. Align the rod of the caster with the intended base. First, push it gently with your hand. If it is not in place, tap it gently with a rubber mallet until the rod is fully inserted into the base. If the caster design allows, tap near the base of the stem to reduce the risk of deformation or breakage. Turn the chair over and sit on it to test the new wheels. If they roll smoothly and evenly and no longer lean to one side, the repair is complete. If it still leans, continue to check if the seat plate is damaged.