Hi Buxus, maybe this is obvious to you but I'll try explaining my experience anyhow since I had the same issue on my M7060 DTH12 for a while and it took me a long time to figure out. It's all in the way you handle that shift lever lever coming out and going into park. Coming out of park you...
IH-574 makes a **** of a moaning/groaning sound when the hydraulic transmission gets engaged or loaded up. It gets a bit better when warmed up but it seems very very loud to me. Almost as loud as the engine maybe louder sometimes. The noise increases in loudness as you load it up more, it seems...