Chainsaw Power Tool

Chainsaw blade is loose.
Chainsaw blade is not installed correctly.
Chainsaw blade is damaged.

Your chainsaw chain keeps getting loose because the chain tension is too low. To fix this, tighten the chain tensioner until the chain is snug against the bar.

Chainsaw chain keeps tightening

Too much tension on the chain
Worn or damaged chain sprocket
Bent or damaged chain bar

Chainsaw chains stretch due to the tension of the chain and the force of the saw blade cutting through wood. Over time, the chain will stretch and become loose, which can cause the saw to work less efficiently and be more difficult to control.

Chainsaw chain keeps coming loose

Overtightened bar nuts
Worn or damaged chain
Bent or damaged bar
Loose or missing chain tensioner
Incorrect bar-to-chain ratio

Chain saw chain keeps falling off because of loose or missing nuts, worn or damaged chain, or dull chain.

Chainsaw blade keeps tightening because the chain brake is engaged, causing the brake band to push against the bar nose and pull the chain tight.

Chainsaw blade keeps popping off -> Chainsaw blade is loose, tighten the bolts.

Chainsaw blade keeps falling off

Check the chain tension.
Make sure the bar nuts are tight.
Replace the chain if it is worn out.
Inspect the bar for damage and replace if necessary.

Chain saw chains keep coming loose because the tension is too loose. To fix this, tighten the tensioner until the chain is snug against the bar.