Gas springs, or gas struts, are found in everyday items like car bonnets, office chairs, and even some kitchen cupboards. They’re designed to make lifting and closing smooth and effortless, thanks to the pressure from compressed gas inside them. But what happens when a gas spring is not moving? Here, we’ll walk you through the most common reasons your gas spring might be stuck and share practical tips on how to get it working again.
How gas springs work
Gas springs work by using compressed gas, sealed in a cylinder, to create pressure. This pressure helps push or pull the piston, making it easy to lift and lower whatever it’s attached to. However, like any mechanical part, gas springs can wear down or encounter issues that make them stop moving altogether. By understanding the typical causes of these problems, you’ll be better equipped to troubleshoot and release them.
Why a gas spring is not moving: common causes
Loss of internal pressure
One of the most frequent reasons gas springs stop working is that they lose pressure. Over time, the gas inside can escape, reducing the force that helps it move smoothly. Here’s how this can happen:
- Worn seals: the seals that keep gas inside can weaken with age, causing leaks.
- Tiny, invisible leaks: even well-made gas springs can develop minuscule leaks that gradually release gas.
Solution: unfortunately, if a gas spring has lost its pressure, refilling it is not usually an option. The best course is to replace it. When purchasing a replacement, look for high-quality options with improved seal technology to help extend its lifespan.
Mechanical blockages
Sometimes, it’s not a pressure issue but a physical blockage stopping the gas spring from moving. This can happen if dust or dirt collects on the rod, or if the piston rod itself is slightly bent.
Solution: first, inspect the rod and clean off any dust or debris. If you notice any bends or visible damage, the gas spring may need to be replaced. Regular cleaning can help prevent blockages and keep everything running smoothly.
Misaligned components
Gas springs need to be aligned correctly to work properly. Misalignment can create pressure and resistance, stopping the spring from moving how it should.
Solution: double-check that the gas spring is properly aligned with its mounting brackets. Adjusting the positioning can often help restore its movement. If you still notice difficulty moving the spring, look out for bent or deformed parts, which may require a replacement.
Incorrect installation or orientation
Many gas springs need to be installed with the piston rod facing down. If the orientation is incorrect, it could prevent the spring from moving freely, especially in models that use oil to dampen movement.
Solution: confirm the installation position. If it’s incorrect, reinstall it following the manufacturer’s orientation guidelines. Correct installation will not only solve the movement issue but also help the gas spring last longer.
Overloaded gas spring
Gas springs are designed to handle specific weights. If the weight load on the spring is too high, it may be unable to move at all.
Solution: Check the weight rating of your gas spring. If it’s not designed for the weight it’s supporting, it will struggle to operate. Replacing it with a spring rated for the correct weight will fix the problem and prevent future wear and tear.
Step-by-step troubleshooting guide
If your gas spring is not moving, here’s a simple troubleshooting process to help you pinpoint the problem and find the right solution:
- Look for visible damage: examine the gas spring for any visible damage like cracks, bends, or leaks. If you see any, it may be time to replace it.
- Test it manually: try moving the spring by hand. If it moves with difficulty, there may be a misalignment or blockage. If it does not move at all, it’s likely due to lost pressure or excess weight.
- Check alignment and installation: ensure the gas spring is properly aligned with its mounts and that it’s installed in the right orientation. A misaligned spring can cause resistance.
- Verify weight limits: compare the spring’s weight rating to what it’s supporting. An overloaded gas spring won’t move and may wear out quickly.
How to release a gas spring?
Would you like to know how to safely release a gas spring? Follow these steps:
- Prioritise safety: always wear protective gear, such as gloves and safety goggles, to avoid any potential injury. Gas springs are pressurised, and releasing them too quickly can be dangerous.
- Find the release mechanism: look for a release valve or screw, which is usually found at one end of the gas spring. This may be covered by a cap or plug.
- Release the pressure: if the gas spring has a valve, use the right tool to gently open it, allowing the pressure to be released slowly. If there’s a screw or cap, carefully loosen it to let the gas escape.
- Disassemble if necessary: in some cases, you might need to remove the gas spring from whatever it’s attached to (like a lid or seat). This may require unscrewing bolts or clips before you can safely release the gas.
- Dispose or store properly: if you need to dispose of the gas spring, make sure to follow local guidelines, as the gas inside could be hazardous. If you’re storing it, keep it in a safe, cool place away from heat sources.
Always remember, releasing a gas spring should only be done carefully and, if possible, by someone with the right experience or tools.
When to replace a gas spring
Sometimes, replacing the gas spring is the best solution. Here are signs that it’s time for a new one:
- Ongoing movement problems: if you’ve tried everything and it still does not move, it’s likely beyond repair.
- Visible wear and tear: cracks, leaks, or bent parts are signs of irreversible damage.
- Loss of pressure: if the gas spring has lost pressure and won’t move, a replacement is usually necessary.
Choosing the right replacement gas spring
Would you like to find a replacement gas spring? Use our online replacement tool! You can also use our calculator to find the best gas spring for your needs. Additionally, you can customise a gas spring as well. All gas springs are shipped from the UK and arrive within 1 to 2 business days. Do you have questions about our products? Feel free to contact our customer service at [email protected] or +44(0)24 7645 5580.
