how to reseat a spring on an ibm model m

Daniel Parker

2 min read

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16-01-2025

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The IBM Model M keyboard, a legendary piece of typing technology, is known for its satisfying click and durable build. However, over time, the springs under the keys can become misaligned, leading to inconsistent keypresses or unresponsive keys. Reseating these springs is a relatively straightforward process, even for beginners. This guide will walk you through the steps, ensuring your Model M is clicking like new again.

Tools You'll Need

Before you begin, gather these essential tools:

• A small flathead screwdriver: This will help carefully pry up keycaps.
• Tweezers: Essential for handling the delicate springs.
• A clean, well-lit workspace: Accuracy is key when working with small parts.
• Optional: A keycap puller: This tool can make removing keycaps easier and safer. However, a flathead screwdriver works perfectly fine.
• Reference photo: Take a picture of the keyboard layout before you start, so you know where each key goes back! This is especially helpful for larger keys like Shift and Enter.

Step-by-Step Guide to Reseating a Spring

1. Identify the Problem Key: Determine which key(s) have the unresponsive or inconsistent feel.

2. Remove the Keycap: Carefully place the flathead screwdriver (or keycap puller) under the edge of the keycap. Gently pry it up and straight off the switch. Avoid excessive force; it should come off relatively easily. Repeat for each key that needs attention.

3. Access the Spring: Once the keycap is removed, you'll see the switch mechanism. Carefully look for the spring underneath. Note its position. This is crucial for proper reassembly. A slight bend or misalignment is often the culprit.

4. Reseat the Spring: If the spring is simply dislodged, carefully use your tweezers to reposition it. Make sure it's seated correctly within the switch mechanism. A slight pressure should firmly hold it in place.

5. Reinstall the Keycap: Align the keycap with the switch and firmly press down until you hear a click, indicating it's properly seated. Repeat steps 2-5 for all keys needing repair.

6. Test the Key: After reinstalling the keycap, test the key repeatedly to make sure it's responding correctly.

Troubleshooting

• Bent Spring: If the spring is noticeably bent, it might be difficult to perfectly reseat it. Try gently straightening it with the tweezers. If it's severely damaged, you may need to replace it. Parts can sometimes be found online through specialized keyboard communities and sellers.
• Stubborn Keycaps: Some keycaps are more difficult to remove than others. Apply gentle, even pressure to avoid breaking the plastic. If it's still stuck, try using a different tool or technique.
• Switch Issues: If the problem persists even after reseating the spring, the issue might be with the switch itself, requiring more advanced repair or replacement.

Maintaining Your IBM Model M

Regular cleaning and careful handling will prolong the life of your IBM Model M. Avoid excessive force when typing and consider using a compressed air duster to clean debris from the keys and switches.

This maintenance will help your IBM Model M keyboard continue to function smoothly, providing many more years of reliable, satisfying typing. Remember to take your time, be patient and gentle, and your keyboard will thank you for it!