Replying to My axial 2 heels are being retarded?

so theyve been exposed to quite a bit of dirt and grime on the setup, and so now the heels wont fully click in and engage without help from my hand. it started out with one heel doing it, id stomp down, the dildo would come up about 1/4 or the way and then id have to do the rest by hand. then the other side started doing the same thing. whenever i stomp on them to get out of the binding, the right side heel makes this little screeching noise. has anyone had this happen or whats the deal.the FP is set correctly, and i tried spraying everything out, and still didnt make a difference. what should it do? note i did get these bindings used but have had no problems with them till now.