Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

I have a weedeater edger.  I am not sure of the model number or anything because I don't feel like going out to the garage to find out.  I just bought a new blade because the other one wore down to far.  I cannot get the old blade off.  I misplaced the instructions.  Is there a button I need to press to lock the blade so I can get it off?  Thanks.