Introduction

Follow this guide to remove and replace the chain brake band for a Makita chainsaw.

Optional tools:

  • Chainsaw scrench
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    • Use a 13 mm socket to remove the two nuts securing the sprocket guard plate.

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    • Remove the sprocket guard plate.

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    • If the chainsaw has a chain and guide bar installed, follow the manufacturer's instructions and remove them before proceeding.

    • During reassembly, if you are reinstalling the chain and guide bar, follow the manufacturers instructions on proper chain tensioning techniques.

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    • Pull the hand guard towards the tubular handle until you hear a click to release the chain brake.

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    • Remove the four 12 mm long T27 screws securing the chain brake cover.

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    • Remove the chain brake cover.

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    • From this point forward, be careful not to engage the chain brake. If the brake snaps back into the locked position during repairs, it may pop the stiff tension spring out of place. You can tie the guard handle to the tube handle with some string as a precaution.

    • Use a small pry bar to pry the brake band out of its groove.

    • Swing the brake band out and carefully unhook it from the right linkage.

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    • Remove the brake band.

    • When replacing the brake, lubricate all moving contact surfaces, such as the brake linkage hook.

    • Do not lubricate the braking surface.

Conclusion

To reassemble your device, follow these instructions in reverse order.

Arthur Shi

Member since: 03/01/18

248651 Reputation

4 comments

Any way to reset the brake if it is accidentally engaged?

Lauren Datson -

Yes! You can use the handle to dis-engage the brake again.

Arthur Shi -

If the stiff tension spring pops off how do you put it back on?

Kelly Hopkins -

Hi Kelly!

You can try to slide the spring into place using a screwdriver.

Set the chain brake in brake mode. Hook the straight end of the tension spring in its groove. Place the flat end of a large flathead screwdriver against the round peg where the curled end of the spring should hook on. Tilt the screwdriver until you can hook the spring onto the screwdriver shank. Carefully straighten the screwdriver to tension the spring, and push the spring off onto the peg.

Arthur Shi -