How to Repair Office Chairs in Yongchuan
The repair of office chairs in Yongchuan requires selecting the appropriate method based on the specific type of fault. Here are the repair steps for common issues:
1. Hydraulic System Issues
If the backrest of the office chair cannot stand upright or adjust its height, there may be a fault in the hydraulic rod or transmission components. First, lay the chair on its side and check if the support point fixing screw (such as a 10*1 non-standard screw) at the connection between the hydraulic rod and the backrest is damaged. If the screw is broken, replace it with a standard size 10 screw. When installing, ensure that the screw length (such as 30 millimeters) matches the original component to avoid affecting the range of motion of the hydraulic rod due to excessive length or shortness. If the movement of the hydraulic rod is obstructed, add a gasket at the connection to adjust the clearance. If the hydraulic rod is completely ineffective, replace it with a new one. It is recommended to contact the manufacturer or a professional repair technician to obtain a compatible model.
2. Replacing Broken Wheels
Turn the chair upside down and use a wrench to unscrew the fixing screws or clips of the broken wheels counterclockwise, then remove the old wheels. When installing new wheels, ensure that the model matches the original wheels (such as diameter, material, braking function, etc.). Align the wheels with the base holes and tighten the fixing screws or clips clockwise with a wrench. After installation, manually rotate the wheels to confirm smooth rotation without wobbling.
3. Repairing Loose Backrests
If the connection between the backrest and the chair body is loose, use a wrench to remove the backrest fixing screws. Apply woodworking glue (such as white glue) evenly on the contact surface between the backrest and the chair body, reinstall the backrest and press it firmly to ensure full contact with the glue. Use clamps or heavy objects to fix the backrest and let it sit for 24 hours until the glue is completely dry before use to avoid secondary loosening due to premature stress.
4. Handling Broken Armrests
Remove the broken armrest (usually by unscrewing the fixing screws), clean the dust and old glue from the broken surface. Apply strong glue (such as AB glue) evenly on the broken part, align the two sections of the armrest and fix them with clamps or ropes under pressure for at least 24 hours until the glue is completely cured. When reinstalling the armrest, check if the screw holes are aligned to avoid secondary damage caused by forced installation.
5. Repairing Damaged Seat Cushions
If the fabric of the seat cushion is damaged but the sponge or filling is intact, trim the frayed edges of the damaged area with scissors to prevent further tearing. Select fabric similar in color and material to the original fabric and sew it along the damaged edge with a sewing machine (if a sewing machine is not available, use strong glue to paste a patch). If the filling is collapsed, supplement it with sponge or memory foam, cover it with fabric again and install it back on the chair frame.
6. Handling Mechanism Damage
If the lifting, rotating, or other mechanisms of the office chair are damaged, minor faults (such as loose screws) can be tightened with a wrench or screwdriver; damaged parts such as armrests and casters can be replaced with original factory parts. If there is damage to complex internal structures such as gears and springs, it is recommended to contact a professional repair technician for handling to avoid more serious faults caused by self-disassembly.
7. Replacing the Lifting Rod
Turn the chair upside down and use a rubber mallet to evenly tap around the base steel ring to separate the base from the hydraulic lifting rod. Use a screwdriver to remove the fixing screws of the upper seat, remove the upper seat, and then lightly tap the edge of the metal chassis with a hammer. Hold the hydraulic lifting rod with one hand and step on the chassis with the other foot to press down forcefully, removing the old lifting rod. When installing the new lifting rod, align it with the holes and assemble it in the reverse order. After installation, test whether the lifting function is normal.
