Office Chair Repair Guide

When an office chair falls apart, targeted repairs should be made based on the specific damaged components. Here are common issues and solutions:

Repairing Damaged Wheels

1. Check and Confirm the Issue: Place the chair upright or upside down and observe whether the wheels make even contact with the ground. If there is tilting, check if the wheels are bent, deformed, or broken by inverting the chair. If the tilting is due to an uneven floor, adjust the placement position; if the wheels are damaged, they need to be replaced.
2. Purchase Matching Wheels: Damaged wheels usually need to be replaced as a set. You can contact the manufacturer for the model number to order or take one of the old wheels to an office supplies store for matching. Note that the shape and size of the wheel axle should be the same as the original wheels to avoid incompatibility.
3. Remove the Old Wheels: Hold the wheel with one hand and the bottom of the chair with the other hand, then pull firmly. If the wheel is difficult to remove, insert a flat-head screwdriver into the gap between the wheel and the chair at the contact point, use the blade as a lever to pry slowly, and pull again after pulling out about 1 centimeter. For a very small number of casters fixed with screws, use a screwdriver to loosen the screws and then remove them.
4. Install the New Wheels: Apply a small amount of spray lubricant (such as WD-40) or use petroleum jelly as an alternative on the socket of the chair base. Align the new caster rod with the base, push gently with your hand, and if it is not in place, tap lightly with a rubber mallet. Avoid tapping in the middle of the rod to reduce the risk of deformation.
5. Test and Adjust: Place the chair upside down and sit on it to test whether the new wheels roll smoothly. If it is still tilted, further check the seat plate or other components.

Repairing a Damaged Chair Back

1. Loose Chair Back: Locate the screws connecting the chair back to the base (usually under the seat or at the folding point of the backrest). Tighten them clockwise with a Phillips screwdriver or an Allen wrench. If the screw hole is stripped, you can temporarily fix it by filling it with toothpicks and wood glue or replace it with a larger-diameter screw.
2. Adjust the Backrest Tension: Most office chairs have a round knob or a tab at the bottom to control the backrest resistance. Turn the knob counterclockwise or push the tab to the maximum resistance position, sit back and test by leaning back, and adjust repeatedly until it is in a suitable state.
3. Noisy or Damaged Gas Lift: If the gas lift makes a noise when raising or lowering, replace it with a gas spring that meets TUV or SGS certification. Do not disassemble the gas lift yourself to avoid danger.
4. Broken Plastic Clips: If the plastic clips on the chair back are broken, you can temporarily fix them with AB glue, but it is recommended to purchase original factory parts for replacement. If the chair has been used for more than 5 years, the fatigue value of the metal components is close to the limit, and the repair cost may exceed 40% of the price of a new chair. In this case, it is recommended to replace it with a new chair.

Tip: If you are unable to repair it yourself, you can contact a professional repair person or purchase an "office chair repair kit" (usually containing general-purpose parts such as screws and clips) to assist with the repair.