Why Does My Chainsaw Chain Keep Coming Off (5 Perfect Tips to Prevent It)

Why Does My Chainsaw Chain Keep Coming off

Is the Chainsaw chain constantly falling off? It’s time to take action with these solutions.

“Your chainsaw chain may keep coming off for a few reasons, such as a loose or worn-out chain, a damaged guide bar, or improper chain tensioning. It’s important to regularly check and maintain your chainsaw to prevent this issue. Ensure that the chain is the correct size for the bar, the bar is straight, and the tension is adjusted properly”.

In this article, I will guide you through the common reasons why does my chainsaw chain keep coming off, how to prevent it from happening, and what to do if it does.”

Let’s Get started, 

Causes Why Does My Chainsaw Chain Keep Coming Off

Here are some possible causes why does my chainsaw chain keep coming off, explained individually.

A loose or worn chain

A loose or worn chain can easily slip off the bar and cause the chainsaw to stop working. This common problem can be fixed by properly tensioning the chain or replacing it if it’s too worn out.

Damaged bar

If the chainsaw’s bar is damaged or bent, it can cause the chain to come off. This is usually due to hitting a hard object, such as a rock or a nail, while cutting. To fix this issue, you’ll need to replace the bar.

Incorrect bar length

If you’ve recently replaced the bar or chain, ensure the bar is the right length for your chainsaw model. Utilizing unacceptable bar lengths can make the chain fall off and harm the saw.

Loose or damaged sprocket

The sprocket is a small gear that drives the chain around the bar. If it’s loose or damaged, it can cause the chain to come off. You may need to tighten or replace the sprocket.

Improper chain installation

If the chain is not correctly installed on the saw, it can come off while you’re using it. Ensure you follow the manufacturer’s instructions when installing the chain, and double-check that it’s properly tensioned and adjusted on the bar.

The chain is too tight

While a loose chain can cause the chain to come off, so can a too-tight chain. An overly tight chain can cause unnecessary strain on the chainsaw, leading to damage and an increased likelihood of the chain slipping off.

Worn or damaged drive links

The drive links are part of the chain that fits into the bar’s groove and drive the chain forward. If they’re worn or damaged, they can cause the chain to come off. You might have to supplant the chain if so.

By identifying the cause of your chainsaw chain coming off, you can take the appropriate steps to fix the issue and keep your saw running smoothly.

Tips to Prevent Chainsaw Chains from Coming Off

Chainsaw chains coming off can be a frustrating and even dangerous problem, so taking steps to prevent it from happening is essential. Here are some tips you can follow:

Check the Tension

One of the most common reasons chainsaw chains come off is incorrect tension. The chain must be tight enough to stay on the bar but not so tight that it can’t move freely. To check the tension, turn off the chainsaw and use a wrench to loosen the bar nuts. Then, use the tensioning screw to tighten or loosen the chain until it sits snugly on the bar. Finally, tighten the bar nuts back up.

Keep the Chain Sharp

A dull chainsaw chain can make it more difficult for the chain to stay on the bar. When a chain is dull, it can cause the saw to kick back or vibrate excessively, which can cause the chain to come off. Make sure to sharpen your chainsaw chain regularly to ensure it’s always working at its best.

Replace Damaged Parts

Another reason chainsaw chains can come off is due to damaged or worn parts, such as the guide bar or drive sprocket. Over time, these parts can become worn or damaged, making it harder for the chain to stay in place. If you notice any signs of damage or wear on these parts, it’s important to replace them immediately.

Use the Right Chain for the Job

Different chainsaw chains are designed for different tasks, so it’s important to ensure you’re using the right chain for the job. For example, a chain designed for cutting through hardwood may not be suitable for cutting through softwood. Using the wrong chain can cause the chain to come off or break.

Proper Lubrication

Chainsaw chains need to be properly lubricated to prevent friction and wear. Make sure to check the oil level and refill it as needed regularly. Also, ensure the oil ports and channels are clear of any debris that could clog them up.

“Following these tips can help prevent your chainsaw chains from coming off and ensure that your saw is working at its best.”

How to Fix Chainsaw Chain Coming Off

Here’s some guidance on fixing the chainsaw chain coming off:

  • Turn off the chainsaw and ensure the engine is cool before working on the chain.
  • Examine the chain to see if any teeth are damaged or broken. If they are, you’ll need to replace the chain.
  • Check to see if the guide bar is bent or warped. If it is, you’ll need to replace the guide bar.
  • Check to make sure that the chain tension is correct. A loose chain can cause it to come off the bar. To adjust the chain tension, loosen the nuts on the bar side panel and tighten the adjusting screw until the chain is snug against the bar. Tighten the nuts again after adjusting the tension.
  • Check to make sure that the chain is properly lubricated. A dry chain can bind up and come off the bar. Make sure that the oil reservoir is filled with bar and chain oil and that the oil is properly distributed to the chain as you use the saw.
  • Check to make sure that the drive sprocket and clutch are working properly. These parts can wear down over time and cause the chain to slip or come off the bar. If you notice any wear or damage to these parts, you’ll need to replace them.
  • Inspect the chain brake to make sure it’s not engaged. The chain brake can sometimes be accidentally engaged, preventing the chain from turning and causing it to come off the bar.
  • Clean the chain and bar thoroughly with a wire brush to remove any dirt or debris that could be causing the chain to come off.
  • Check to make sure that the chain is properly aligned with the bar. If it’s not, it can cause the chain to come off. To align the chain, loosen the nuts on the bar side panel and adjust the bar’s position until the chain is properly aligned. Tighten the nuts again after adjusting the alignment.
  • Once you’ve checked all these things, reattach the chain to the bar and tighten the tension according to the manufacturer’s specifications. Test the chainsaw to make sure that the chain stays on the bar.

And that’s it! With these steps, you should be able to fix your chainsaw chain if it keeps coming off. Remember always to use caution when working with a chainsaw and to follow all safety guidelines.

Step-by-step Guide for Fixing Loose or Worn Chain

There is the following step-by-step guide you need to know for fixing loose or worn chains:

Loosen The Axle Nuts

If you need to adjust the chain tension, you’ll need to loosen the axle nuts on your bike or motorcycle’s rear wheel. Use a socket wrench or a spanner to loosen the nuts on both sides of the wheel, but don’t remove them completely.

Adjust The Chain Tension

Once the nuts are loosened, you can adjust the chain tension by moving the rear wheel forward or backward. Use the marks on the swing arm or a ruler to ensure the wheel is aligned properly. Adjust the chain tension so that it’s within the recommended measurement.

Tighten The Axle Nuts

You can tighten the axle nuts once you’ve adjusted the chain tension. Use a torque wrench to ensure you’re applying the correct amount of torque, usually specified in the owner’s manual.

Check The Chain Condition

While you’re adjusting the chain tension, it’s also an excellent time to check the overall condition of the chain. Look for signs of wear, damage, or rust, and make sure the chain is well-lubricated. If the chain is worn or damaged, it’s best to replace it before it causes further problems.

Lubricate The Chain

Finally, you should lubricate your chain to keep it running smoothly and protect it from wear and tear. Use a chain lubricant designed for your specific bike or motorcycle, and apply it according to the manufacturer’s instructions.

Following these steps, you can fix a loose or worn chain and help ensure your bike or motorcycle runs safely and smoothly.

What To Do IF The Chainsaw Chain Is Too Tight?

If you find your chainsaw chain too tight, you can take a few steps to address the issue. First, it’s important to understand why a chainsaw chain might be too tight. Generally speaking, the chain tension needs to be adjusted periodically as the chain stretches over time and use. If the chain is too tight, it can cause excessive wear and tear on the chain and the bar, making it challenging to cut through wood efficiently.

Here are the steps you can take if your chainsaw chain is too tight:

  1. Turn off the chainsaw and let it cool down if recently used.
  2. Use a flathead screwdriver or a wrench to loosen the chain tension adjustment screw or knob, usually on the chainsaw’s side.
  3. Carefully adjust the chain’s tension by turning the adjustment screw or knob until the chain is at the appropriate tension. You can check the tension by pulling the chain away from the bar and ensuring there is about 1/8 inch of slack.
  4. Once you’ve adjusted the tension, tighten the adjustment screw or knob to lock in the new tension.
  5. Recheck the tension to make sure it’s at the appropriate level. If it’s still too tight, repeat the process until you get the desired tension.

It’s important to note that you should always follow the manufacturer’s instructions when adjusting the tension of your chainsaw chain, as the specific process can vary depending on the make and model of the chainsaw. Additionally, wearing protective gear when using a chainsaw, including eye and ear protection, gloves, and a helmet is important.

Overall, adjusting the tension of your chainsaw chain is an important maintenance task that can help ensure your chainsaw performs optimally and safely.

Final Thought

Chainsaw chains can come off for various reasons, including a loose or worn bar, loose chain tension, or a damaged chain. It is important to regularly inspect and maintain your chainsaw to prevent accidents and damage to your equipment. When installing a new chain, follow the manufacturer’s instructions carefully and check the tension frequently during use. Additionally, always wear appropriate protective gear and take necessary precautions when operating a chainsaw to ensure safety.


How Do I Keep My Chainsaw Chain From Falling Off?

To keep your chainsaw chain from falling off, ensure it’s properly tightened before using it. You can also inspect the chain for any damage or wear and tear and replace it if necessary. Lastly, use the correct chain size and type for your chainsaw.

How Tight Should The Chain Be On A Chainsaw?

When it comes to chainsaw chains, you don’t want them too tight or too loose. The proper tension for your chainsaw chain is when you can pull it away from the guide bar about a quarter of an inch. It should also move smoothly and easily around the bar. It’s important to keep the chain properly tensioned to ensure efficient cutting and to prevent wear and tear on the chain and bar.

Why Does My Chainsaw Chain Keep Jumping Off The Bar?

There could be a few reasons your chainsaw chain keeps jumping off the bar. One possible reason is that the chain tension is not correctly adjusted, causing it to become loose and slip off the bar. Another reason could be that the chain is damaged or worn out and needs to be replaced. It’s also possible that the bar itself is damaged or bent. Checking these things and making necessary adjustments or replacements should help solve the issue.

Why Does My Chain Keep Coming Off My Husqvarna Chainsaw?

There could be a few reasons why your chain keeps coming off your Husqvarna chainsaw. It could be due to a loose or worn-out chain, a damaged guide bar, or a malfunctioning chain tensioner. Inspecting all of these components and making any necessary adjustments or replacements is important. Also, ensure you’re using the correct chain size and tensioning it properly before use.

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