Hammer? 
I know theres a spring in the diaphragm, but surely it cant be stronger than I am lol?
If it is seized it could be the cause of the premature wear? Making the fans hit the casing and snap the corners off them....?

I know theres a spring in the diaphragm, but surely it cant be stronger than I am lol?

If it is seized it could be the cause of the premature wear? Making the fans hit the casing and snap the corners off them....?