I have a replaceable blade outdoor edge knife for about 5 years.  It has cut up a fair amount of animals, the last few times i have noticed that it is getting harder to replace the blade.  I am guessing dried up blood ect.  Now i can not remove the blade.  Any tips or tricks.  I have cleaned it, but I am thinking the release mech is just not releasing.  
Thanks tim
								Thanks tim
 
				
		 
			 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		