Office Chair Repair

Office chair repair requires targeted measures based on specific issues. Here are common problems and repair methods:

I. Repair of the backrest gliding mechanism of the Sihoo C500 Second Generation Deluxe If the backrest bone blocks are loose and fail to stay in place, the back cover needs to be removed for tightening. The specific steps are as follows:

1. Removing the back cover: Gently pry open the lower edge of the back cover, ensuring even force to avoid damaging the clips.
2. Removing the screws: Use a Phillips screwdriver to remove the five internal fixing screws and store them safely to prevent loss.
3. Separating the cup holder: After removing the screws, gently push the aluminum alloy cup holder to separate it from the backrest main body and check for wear at the bone block connections.
4. Reassembling: Clean any impurities from the contact surfaces of the bone blocks, reinstall the cup holder in its original position, tighten the screws, and test if the backrest sliding resistance is appropriate.

II. Repairing an office chair that leans to one side Chair leaning is often caused by damaged wheels or poor base contact, requiring systematic inspection and component replacement:

1. Checking wheel condition

   • Place the chair upright and upside down to observe if each wheel foot makes even contact with the ground. If a wheel on one side is suspended, there may be a bent wheel axle or a stuck wheel.
   • After inverting the chair, check for cracks, deformation, or rubber aging and detachment on the wheel feet, focusing on the connection between the wheel axle and the wheel.

2. Replacing damaged wheels

   • Removing old wheels: Pull out the wheel foot directly by hand. If it is stuck, insert a flat-head screwdriver into the gap between the wheel foot and the chair base and use leverage to gently pry it open. A very small number of wheels are fixed with screws and need to be removed with the corresponding screwdriver.
   • Matching new wheels: Contact the manufacturer to provide the chair model and order original wheels, or take the old wheel to an office supplies store to compare the shape of the wheel axle (such as round or square), diameter, and wheel width to ensure compatibility with the base socket.

3. Lubrication and installation

   • Lubrication treatment: Spray a small amount of WD-40 spray lubricant (about half a second) into each base socket, or apply a pea-sized amount of Vaseline to the wheel axle to reduce friction-induced jamming.
   • Installing new wheels: Gently tap the wheel rod with a rubber mallet to align it with the base socket. First push it in by hand about 1 centimeter, then tap the base of the wheel rod with a rubber mallet until it is fully embedded, avoiding direct tapping on the wheel surface to prevent damage.

4. Testing and troubleshooting

   • Sit on the inverted chair and move it slowly to observe if it still leans. If the problem persists, check if the seat plate is deformed or if the connecting screws are loose. Replace the seat plate or reinforce the bracket if necessary.

Repair tips: Wear protective gloves before operation to avoid scratches from a slipping screwdriver. If the chair has a complex structure or is severely damaged, it is recommended to contact professional repair personnel for handling.