I have a JD CT332 track loader and was told by JD that if I purchased the Hi-Flow option I could run heavy attachments, I specifically asked if I could run tree mulchers with this option and was told yes. I went to work for a man that had a mulcher attachment and my machine overheated and shut down and had to be put in the shop because of all the problems the overheating caused. John Deere states now to me that it will only run this type of attachment if the mulcher is reconfigured to change the oil flow to fit the machine. They state that each and every mulcher head that I try to use needs to be checked to assure that it is configured correctly to accommodate the oil flow and operate properly. Has anyone else ran into this problem? Are mulcher heads made to where they can be reconfigured to fit the oil flow of the machine? They also now tell me I need an optional cooling system to also accomodate these heavier attachments, which was not told to me when I purchased it.