Hi guys needing some help. I am sorry if this was covered already having trouble navigating forums. My B3200 has 230 hrs on it. It was a quiet tractor when newer. All regular maintenance has been followed. It is a Hst and that terrible squealing pump noise in high is driving me crazy. It is really loud when cold and as fluid thins out it gets quiet. If I am less than half pedal it is quieter. Ad soon as I get the pedal down it screams. I did read that people are finding some material in high pressure relief valve. Ask my dealer and they acted like they've never heard of this noise before. They also advised me not to service the pressure relief valve myself. I asked him where it is and they could not tell me. Any help would be appreciated I don't even know if I'm hunting in the right area but it sure seems like the pump whining to me. Thanks in advance