We're experimenting with a Star min round hay baler. We've taken the covers off the baler so we can see how it works and to make density adjustments easier. It's being pulled by an Iseki TX2140. It's only a 14HP tractor (probably 12HP PTO). The baler is supposed to have min. 18HP, but the tractor seemed to drive it ok even at about 1500 RPM. So we think the low HP is ok, but the tractor weight was a serious problem. On the corners you'll see we're using the tractor brakes to get around the corners. If we try to lift the baler using the 3 pt linkage, the tractor front wheels lift off the ground. Also, the it's not live PTO and disengaging the PTO drive to the baler seems to disrupt it's timing and so it fails to make a baler properly (over fills the bale chamber). So we need to find a heavier tractor with live PTO.