noise

I have a T2290 that makes noise when you disengage the brake. If you look underneath with the motor running and push down the brake pedal it stops. You can see the belt moving when brake is released. Belt stops when you push down on the brake and the noise goes away. I'm wondering if this is a...

OK... I noticed that last time I mowed, that the mower was making a kind of clunking sort of noise intermittently. I use earplugs so I can't be more specific more than that. Today, it was doing it again. I tried with and without the front wheel drive power assist, because it SEEMED like it...