Dongyuan Office Chair Refurbishment

The refurbishment of Dongyuan office chairs can be carried out according to the following steps, and safety regulations must be observed during operation:

1. Thorough Cleaning

1. Disassembly of Components: Use a screwdriver to remove the seat, backrest, and armrests, separating the detachable structures for in-depth cleaning.
2. Frame Cleaning: Wipe the metal or plastic frame with a soft cloth dipped in a neutral cleaner. For stubborn stains, use an alcohol wipe for local treatment to avoid corroding the material.
3. Seat Surface Treatment: Rinse mesh seat surfaces with a shower and let them air dry naturally, avoiding exposure to direct sunlight which can cause deformation. For leather or faux leather seat surfaces, use a dedicated cleaner to prevent cracking.

2. Replacement of Wear-prone Parts

1. Replacement of Pneumatic Rods:
   • Invert the chair, wear safety goggles, and gently tap the bottom of the old pneumatic rod with a rubber mallet to loosen and remove it.
   • When installing the new pneumatic rod, ensure the interface is aligned to avoid damage from forced pressing.
   • Safety Tip: Low-quality or aged pneumatic rods pose an explosion risk. If rust, air leakage, or lifting/lowering stuttering are detected, replacement is mandatory.
2. Wheel Replacement: Simply pull out the old wheels and insert silent casters (it is recommended to choose models with brakes), ensuring a secure fit.
3. Seat Surface Repair: If the leather seat surface is severely damaged, purchase an elastic chair cover online for wrapping. For sagging mesh, try using a heat gun at a low temperature to gently heat and stretch it, but the effect is limited. It is recommended to replace the seat cushion with a new one to enhance comfort.

3. Surface Touch-up and Functional Debugging

1. Metal Frame Repair: Apply anti-rust paint to areas where the paint has chipped off, and lightly sand it smooth after drying to prevent rust from spreading.
2. Plastic Part Refurbishment: For scratches, use a heat gun (temperature controlled at 100-120°C) to slowly heat them, utilizing thermal expansion and contraction to fade the marks, avoiding high-temperature deformation.
3. Functional Testing: After assembly, adjust the lifting, tilting, and rotating functions to ensure smooth operation of the mechanism. If the base adjustment fails or makes abnormal noises, it is recommended to replace the chair directly, as the repair cost usually exceeds the residual value of the chair.

Precautions:

• Wear safety goggles and gloves before operation to prevent parts from flying off or cleaners from coming into contact with the skin.
• Avoid using strong acid or alkali cleaners to prevent corrosion of the material.
• If the chair has been in use for more than 5 years or has severe structural deformation, refurbishment is not cost-effective, and it is recommended to purchase a new chair.