Herman Miller Aeron Repairs and Maintenance Tutorials

Herman Miller Aeron Repairs and Maintenance Tutorials

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How to Repair Common Issues on Your Office Chair: A Step-by-Step Guide

Maintaining your office chair is essential for comfort and longevity. This tutorial covers repairing common issues like replacing lumbar support, arm pads, seat foam, concealing scuffs, and changing casters.

Items You Need:

Replacing Lumbar Support

Remove Old Lumbar Support:

  • Gently pull up on both sides of the lumbar support to detach it from the chair.

Install New Lumbar Support:

  • Align the teeth of the new lumbar with the chair's guides.
  • Apply equal pressure downwards on both sides to secure it.
  • Verify the lumbar size by checking the dots on the top against the size chart. Ensure it matches your chair (e.g., B-sized Aeron with B-sized lumbar).

Adjust Lumbar Tension:

  • Flip the lumbar for varying tension levels.
  • Adjust its position for higher or lower tension. Default position is about one inch from the top of the rails. Note: Too high a placement may cause it to pop out under weight.

Replacing Arm Pads

Remove Old Arm Pad:

  • Use a power drill or Phillips head screwdriver to remove the two screws securing the arm pad.
  • Discard the old arm pad.

Install New Arm Pad:

  • Place the new arm pad on the frame, aligning the screw holes.
  • Secure it with screws, ensuring they are tightly fastened to prevent looseness.

Replacing Seat Foam

Remove Old Foam:

  • Pull the seat mesh up to access and remove the old foam. If the mesh rips, ensure all pieces are removed.

Install New Foam:

  • Peel off the adhesive backing from the new foam strip.
  • Slide it under the seat mesh, adhesive side down, aligning it evenly.
  • Press down along the foam's length to secure it.

Concealing Scuffs on Plastic Parts

Prepare for Painting:

  • Use Office Logix touch-up paint (available online).
  • Shake the can well and apply short sprays to scuffed areas in a well-ventilated space.

Revive Chair Appearance:

  • Apply touch-up paint to conceal scuffs, enhancing the chair's look.

Replacing Casters

Remove Old Casters:

  • Turn the chair on its side and pull off the existing casters.

Install New Casters:

  • Insert new casters into each hole, pushing firmly to ensure they are securely installed.

Test New Casters:

  • Place the chair upright and test the smoothness of the ride on various surfaces.


Regular maintenance and timely repairs can significantly extend the life of your office chair, ensuring it remains comfortable and functional. By following these steps, you can easily address common issues, from lumbar support replacement to caster upgrades, keeping your chair in top condition.

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