Office Chair Pneumatic Gas Lift Cylinder Repair

If you have an office chair that won’t stay up anymore you have a few options for a fix. You can replace it with a new cylinder  for around $20 or so, or if you always maintain your chair at the same height level (like I do), you can permanently fix your cylinder at next to no cost and relatively low DIY difficulty level.

Here is the material and tools list to get the job done in about 15 minutes:

  • 4″ long 1-1/2″ diameter PVC pipe – (look in your basement, garage, ask a friend, or get from a local hardware store for pennies)
  • A flat-head screwdriver
  • Either a hacksaw or a PVC pipe cutter

Step 1.

Remove the retaining clip by pushing it from the side with a screwdriver tip and slide out the chair base with wheels.

01c31d5a533d971a9b4b548dbe4af693352fa19aaa

 

Step 2. Measure and cut the PVC pipe to a desired length with a hacksaw or a pipe cutter and slide it onto the cylinder.


017faf86b584383f97d2791b914718b4a1ff3e2e6b

 

Step 3. Put the smaller diameter plastic cylinder skirt (if included with your chair) in a reverse direction so that it covers up the PVC pipe. Slide the larger diameter plastic skirt in a normal direction to cover up the base of the cylinder.

01c890213c7bbcbf1a87dcd30f3759f1dc0ceef8bc
0172241e6948b080528eda9ae835ccfc3157d29adfStep 4.  Slide the wheel base back onto the cylinder and fasten it with the retaining clip.

 

017a4d9b4d31ea920fe461400fd2c49939aa4f542bDone! Your office chair will no longer adjust in height, but you will have a working chair with fixed height, as a permanent, or as a temporary fix, until your new cylinder arrives.