How to Fix a Loose Armrest on an Aeron Chair: Replacing The Arm Index
If you are experiencing a loose armrest on your Aeron chair, do not worry; it is a fixable issue. This tutorial from OfficeLogixShop will guide you through the steps to replace the Arm Index, which will secure your armrest once again.
1. Gather Your Tools
- Power drill or screwdriver with a Phillips head
- Wrench
2. Remove the Armrest Screws
Begin by unscrewing the bottom two screws that hold the armrest using a Phillips head bit. These screws are crucial for securing the armrest pad to the chair's internal frame.
3. Loosen the Silver Bolts
Using your wrench, loosen the silver bolts that are exposed after removing the armrest pad. These bolts hold the internal horizontal adjustment mechanism together.
4. Remove the Broken Index and Metal Frame
Carefully remove the broken arm index and the metal frame surrounding it. The index is the notched plastic part that allows the arm to lock into different horizontal angles.
5. Install the New Arm Index
Position the new OfficeLogixShop arm index where the old one was. Ensure the correct label is facing up: 'R' for the right side and 'L' for the left side to ensure proper orientation.
6. Reattach the Metal Frame
Place the metal frame back on top of the new index, aligning it with the silver bolts. This frame provides the structural support for the armrest's pivot.
7. Secure the Plastic Piece
Press the plastic cover piece over the frame, making sure it aligns perfectly with the bolts.
8. Tighten the Bolts and Washers
Hand-tighten the bolts and washers first to ensure alignment, then use your wrench to fully secure them. This prevents future horizontal wobble.
9. Test the Armrest
Before reattaching the cushion, test the armrest for tightness. It should click into the different index positions firmly without excess play.
10. Replace the Armrest Cushion
Align the armrest cushion and reinsert the original screws from the bottom to secure it to the assembly.
Frequently Asked Questions
What tools do I need to fix a loose armrest on my Herman Miller Aeron?
You will need a power drill or a screwdriver with a Phillips head, as well as a wrench, to complete this repair.
How do I safely remove the cushion from my Aeron?
Begin by unscrewing the bottom two screws that hold the armrest using a Phillips head bit. These screws are crucial for securing the armrest pad to the chair's internal frame.
What is the purpose of the arm index on this office chair?
The index is the notched plastic part that allows the arm to lock into different horizontal angles.
How can I ensure the new OfficeLogixShop part is installed in the correct orientation?
Position the new index where the old one was, and ensure the correct label is facing up. Use 'R' for the right side, and 'L' for the left side, to ensure proper orientation.
Final Results
Once completed, the horizontal adjustability of your Aeron chair will be fully restored. This simple maintenance task ensures your chair continues to provide the premium ergonomic support you expect. For more Aeron replacement parts, visit OfficeLogixShop.com.