Just purchased 15-200 and 15-220 blades but when I tried to put them on theres nothing to lock in place and the blades are simply held on by friction. I did not use the extra adapter that was included.

Has anyone else used these blades and have any tips to their installation? Thanks.

 

so they will just fall right off?

 

when its dry they are pretty snug but in the rain they can slide. Im sure I put them on wrong but can't figure out how to lock them in place.

 

pics?? where did you get them from?