Herman Miller Mirra Gas Cylinder Replacement Tutorial

Herman Miller Mirra Gas Cylinder Replacement Tutorial

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How to Replace the Gas Cylinder on Your Herman Miller Mirra 1 Chair?

In today's tutorial, we're tackling the task of replacing an old gas cylinder with a new one —a key step in maintaining the functionality and comfort of your Herman Miller Mirra 1 chair. Before proceeding, ensure you have dismantled the chair as necessary by following the steps provided in our previous tutorials.

Tools Needed:

Steps to Replace the Gas Cylinder:

Preparing the Chair:

  • Begin by removing the cover that does not house the cylinder cable beneath it. It's crucial to remove only this cover to prevent damage to the cylinder cable head.

Removing the Cylinder Cable:

  • Gently pull out the cylinder cable head to release the cable, allowing for its retraction.

Detaching the Old Gas Cylinder:

  • Use a monkey wrench to loosen and detach the gas cylinder from the seat's mechanism.
  • Apply a hammer to the bottom of the chair to help release the gas cylinder.

Installing the New Gas Cylinder:

  • Insert the new gas cylinder into the base of the chair. Ensure it's properly seated and secure.

Reassembling the Chair:

  • Place the seat back onto the chair, ensuring it aligns correctly with the new gas cylinder.
  • Reconnect the cylinder cable head by pushing the circular part into its designated spot, then press the latch and insert the remainder of the cylinder cable head securely.

Testing the Chair:

Before putting the cover back, test the chair's height adjustment to ensure everything is working correctly. Once confirmed, reattach the cover.

Reinstalling the Arms:

If you've removed the arms, now is the time to reinstall them along with the adjustable plastic rail mechanism. Follow the video demonstration closely to ensure proper installation.


Your Herman Miller Mirra 1 chair should now be equipped with a new gas cylinder, ready to provide adjustable support and enhanced comfort. This simple yet crucial maintenance task will extend the lifespan and functionality of your chair. For all your Herman Miller Mirra 1 replacement parts, remember to visit OfficeLogixShop.com, where you'll find high-quality components at the best prices.

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