A properly tensioned chainsaw chain should be slightly loose on the chainsaw guide bar, but not so loose that you can pull the drive links out of the bar nose.

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How do I know if the chain on my chainsaw is tight enough?

The chainsaw chain should be snug but still free to pull. Finally, to ensure proper saw chain tension, perform a “snap” test. All you have to do is pull the chain right on the underside of the guide bar down until one or two drive links are free of the guide bar rails, then let go. The chain should snap right into place.

What is the ideal amount of slack for a chainsaw blade?

Without much effort, it should “give” about a 1/4 inch from the bar. Finally, while still holding on to the bar’s tip, tighten the bar nuts. Proper chainsaw chain tension is safer, cuts better, and extends the life of your chainsaw and chain.

What happens if the chain on a chainsaw is too tight?

By over tightening the chain, you put extreme strain on the drive sprocket and bar nose, resulting in premature wear. When you start the chainsaw, bar oil will be consumed at a faster rate, and if the chain is too tight, it can damage the clutch and bearings.

How tight should a chain be?

The exact tightness of a chain, according to the rule of thumb, will only allow you to move for about half an inch. If the chain is too loose, you’ll need to tighten it. If you can’t move the chain, it’s too tight and needs to be loosened.

Why is the chain on my chainsaw constantly loosening?

One of the most common reasons for your chain coming loose is that it was not properly set. When you go through the steps to tension your chain, you must finish by setting the tension so it does not change as you work your saw.

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