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Re: ryobi pcn3335 chainsaw chainbrake will not release...
1. Is there a Homelite/Ryobi dealer/authorized repair facility near you? If yes I'd try them they may repair it. 2. Any major chainsaw seller/repairer may be able to repair it... there will be a fee. Lou I own a few chain saws without chain brakes. I also own and use good PPE.
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Sounds silly but have to activated the chainbrake by accident.? The black handguard by the top handle is the chainbrake.! Pull it back to de-activate the safety chain brake. It works by activating a brake band around the clutch drum, stopping the drive but the engine still runs, however if you try and rev it the engine will struggle under load because the clutch is trying to drive a drum which is being held by the brake.
There is a "knee" mechanism in the side cover. It may have failed or is stuck. I would suggest pulling back on the chainbrake handle to almost break the handle, if it does not release pry the cover off of the saw. Then REPLACE the entire assembly side cover and chainbrake.
1. What is the make and model of the saw?
2. Does it make any sound when you push the chainbrake handle towards the front (the bar and chain direction)?
3. The idea, and the way it works is that as the bar and chain get jerked upwards towards your face, your left wrist catches the chainbrake handle and pushes it forward thus engaging the chainbrake.
All machines today will have a chainbrake, this is normally a band that comes around the clutch drum to stop the chain in the event of a kick back, to unlock the brake, pull the hand guard fully back to the top handle until you hear the click of the brake loading, there will be an amount of force required to pull the guard back.