Office Chair Repair Guide

The repair method for a damaged office chair depends on the specific damaged part. Here are common situations and corresponding solution steps:

1. Damage to the upper part If the backrest wooden board is cracked or the frame is deformed, prioritize replacing the upper - part components. Determine whether the damage is limited to independent modules such as the backrest or armrests. If it is overall structural damage, contact the manufacturer to obtain suitable accessories and avoid self - modification that may lead to structural imbalance.

2. Tilted to one side

• Check wheel - ground contact: Place the chair upright and upside - down to confirm that each wheel foot is in contact with the ground. If the wheels are uneven, further check whether the wheel feet are damaged.
• Replace the wheels: If the wheels are damaged, purchase new wheels of matching models. You can contact the manufacturer to provide the original model or take the old wheels to an office supplies store to compare the shape and size of the wheel axles.
• Remove the old wheels: Pull out the wheel feet directly by hand; if they are stuck, insert a flat - head screwdriver into the gap between the wheel foot and the chair contact point as a lever, pull it out about 1 centimeter, and then pull again; for a very small number of wheels fixed with screws, use a screwdriver to loosen the screws and remove them.
• Lubricate and install: Apply a small amount of spray lubricant (such as WD - 40) or a pea - sized amount of Vaseline to the socket on the chair base. Use a rubber mallet to knock the new wheels into the socket, ensuring that the wheel axle is aligned with the base.
• Test and further inspection: Invert the chair to test whether the new wheels are stable. If it is still tilted, check the seat plate: Place the chair on its side, find the metal seat plate (usually a square black - painted steel plate that connects the single - leg column to the seat plate), and confirm whether it is deformed or loose.

3. Loose gliding bone block of the backrest Taking the Sihoo C500 second - generation premium model as an example, you need to disassemble the back cover: Pry open the back cover from the bottom, remove 5 screws, take off the rear aluminum alloy cup holder, and check whether the connection of the gliding bone block is loose or worn. Replace the accessories or tighten the screws if necessary.

4. Damage to the hydraulic rod

• Inability to lift or strange noises: If the chair cannot be lifted, it may be due to poor internal sealing of the hydraulic rod or a control valve failure; strange noises may be caused by a lack of lubrication or loose components.
• Sealing problem: Invert the chair, disassemble the connection between the hydraulic rod and the chair seat, and check whether the sealing rubber ring is damaged. If it is damaged, purchase a suitable rubber ring for replacement and then reassemble.
• Control valve failure: Clean the valve to remove impurities. If it is still ineffective, replace it with a new valve.
• Lubricate and tighten: Drip professional hydraulic oil or lubricating oil into the moving parts of the hydraulic rod and repeatedly lift and lower the chair to evenly distribute the oil; if the components are loose, use a wrench to tighten the screws. Note: Hydraulic rod repair involves high - pressure risks. Ensure the chair is stable before operation. Inexperienced individuals are advised to contact professional repair personnel.