How Tight Should a Chainsaw Blade Be?

Adjust the tension of the chainsaw chain using a screwdriver.

A chainsaw is a useful tool for completing tasks around the home, including trimming branches and cutting down trees. To keep the saw in optimal working order, it is important to adjust the chain if it is too loose or tight.

Tension

There is no universal rule when it comes to adjusting the tension of the chain on your chainsaw. Different sizes and models require different tension levels on the chains. Typically, the lower half of the chain should not sag, while the upper half should be loose enough to be gently pulled away from the blade by hand.

Adjusting

Consult the saw owner's manual to learn the appropriate level of tension on the chain. Then, using a screwdriver, adjust the tension screw that is often located at the base of the blade, next to the body of the saw.

Too Loose or Tight

If the chain is too loose or too tight, the saw will not work correctly. If the saw is too loose, it will wobble and make cutting difficult. If it is too tight, it is more prone to breaking.

References

• Stihl: How to tension the saw chain correctly
• Extreme How To: Chainsaws 101
• Slide Share: How To Tension A Chainsaw Chain