Roland TD-1KV Hi-Hat Pedal 6½ Year Usage Update. (Not Working & Solution) 

Excellent to know. Thanks.

noooooo, that "piece" of mine seems totally okay and in very good shape and with a nice "curve" so my problem should be a different one. I try to explain myself the best I can in English to see if you can may figure it out :) I have to press reaaaaaal hard in the pedal to keep the hithat silent while hitting the hithat cymbal. Furthermore, even if Im pressing it really hard and manage to make it "close" for one hit, even so, keeping the same pressure (really strongly) I hit the cymbal again and by this time is already "open" Even if I push reaaaaal hard directly the rubber piece with my hand, I still encounter the same problem-s What Im saying above its just for ordinary play. If I had to for example do something a bit more complex like saying for example openig/closing the cymbal by just pressing/depressing the pedal that prove an IMPOSSIBLE TASK. Impossible even just to do it once. They only thing I can really achieve and that's only by pressing very very very hard and very to the edge of the pedal, its just silent the hat but just once Any idea of where the problem could be?. Thanks :)

@@JesusPiano You still need to replace it. It is not the "shape/curve" that matters. It is it's pliability, and yours sounds like it has hardened. Contact your areas music store to see if they carry Roland replacements. A small dab of silicon spray on the apex of the curvature on the rubber actuator should sort it temporarily also.

It is called. Roland Rubber Actuator I enquired at a music store and they shipped it to me. Thank you.