Office Chair Rod Broken

If the rod (pneumatic rod) of an office chair is broken, it can be repaired or replaced based on the specific fault symptoms. Details are as follows:

Common Faults and Repair Methods

• Unable to Adjust Height or Automatically Sinks:

  • Sealing Issue: Poor internal sealing of the pneumatic rod may cause air leakage, resulting in the chair's inability to maintain height or slowly sinking. Invert the chair, disassemble the connection between the hydraulic rod and the seat, and check if the sealing rubber ring is aged or damaged. If damaged, purchase an appropriate sealing rubber ring for replacement.
  • Control Valve Failure: A clogged or damaged valve can cause the height adjustment function to fail. Try cleaning the valve with a cleaning agent to remove impurities; if cleaning does not resolve the issue, replace the control valve with a new one.
  • Internal Air Leakage: If both the sealing rubber ring and the valve are normal, there may be internal air leakage in the pneumatic rod, in which case the entire pneumatic rod needs to be replaced.

• Wobbling:
  Wear or aging of the inner plastic sleeve at the connection between the gas rod and the chassis can cause the chair to wobble. Measure the size of the inner sleeve, purchase a matching replacement part, and replace it to eliminate wobbling.

• Gas Rod Detachment:
  Deformation or loss of the bottom retaining clip or配件 (accessories) can cause the gas rod to detach. Search for "pneumatic rod accessories" on e-commerce platforms, purchase a universal replacement clip, and install it according to the instructions to restore functionality.

Steps to Replace the Pneumatic Rod

• Removing the Old Pneumatic Rod:
  Lay the chair down, step on the base with both feet to secure it, and shake the upper part of the seat to separate it from the pneumatic rod; gently tap the edge of the circle around the pneumatic rod with a hammer or wrench (avoid tapping the bottom), or use a pipe wrench or locking pliers to unscrew the pneumatic rod.
• Installing the New Pneumatic Rod:
  Purchase a new pneumatic rod that matches the size of the old one (prioritize products with SGS or BIFMA certification), first install it onto the base, then place the seat onto it, and finally sit on it to press down and ensure a secure connection.

Precautions

• Safety First: Ensure the chair is in a stable state during repairs to avoid injury from collapse.
• Precise Selection: Measure the diameter, stroke, and other parameters of the old gas rod to ensure the new accessories match; prioritize brands like Weiyasi and Sanhong.
• Professional Assistance: If you lack repair experience or the fault is complex, it is recommended to contact a professional repair technician for assistance.