The XR hydro is a two speed hydro motor introduced on the S8 series combines. At the flip of a switch, you can switch between high and low range on the fly when conditions get tough so you don't have to stop and downshift the transmission. ie going up a steep hill with a loaded grain bin. On the S8's, it feels like a power shift when you flip the switch from high to low or visa versa. On the S9's, the feel is seamless and automatic.
As far as rated and max power, I don't have the specs in front of me at this time but I believe they are unchanged from the S8 series.
Thanks for the updates on what is new. I'll throw out a serious concern for our area though. I hope there is a way to lock the two speed hydro in low and not have it manually upshift. We have two combines with the two speed hydro and love the feature and one was put on our S77 and have run it four seasons now.
If going uphill over 70% hydro in high range will it sense the pressure and go to low range? Or will you have to pull back and feel the shift point? I would think the same would be asked for wet tough spots. There has to be more to it than just hydro position.
For us the more important question is going downhill. With the current one speed hydro going downhill you actually have to hold the hydro in reverse and letting go and it will go to the neutral position which is full hydro plus some so 7 mph in second gear. The by wire will hopefully change actually physically fighting it to keep it slowed down. With the hydro in low range you can actually go down hills in a forward direction on the hydro but we operate at 70% plus in low range and don't need to be going downhill and have it seamlessly jump into high range and then have to pull back on the hydro to presumably reverse like we have to even in high range on the two speed hydro. A combine lurching forward followed by a pull back usually sets the header in the ground and the rear wheels in the air. When I'm going downhill I want to know what range it is in and want it to remain there. The last thing I want is a seemless upshift throwing the combine into a freewheel situation followed by a possible end-over with a longer feederhouse putting the weight further forward.
Since there is only three Gleaner dealers in the PNW and one that specializes in the hills that hasn't had one of these automatic shifting units to give feedback on, I will be waiting for Gleaner to get one out here for testing to find out how it really reacts in the hills so that my concerns can be laid to rest before purchasing one of these units.
Take a look at the picture Gleaner of the tractor and air drill that has to deadhead up hill to seed. The Gleaner will not pull that and must come down around. It is 900 feet in elevation to the valley floor and I don't need a combine deciding it wants to go there faster than I do because the hydro got pushed a little too far. Let us be able to manually lock it into the desired range in addition to the auto mode. If you have already then great and thank you. It will be a REQUIREMENT in our conditions. When focusing on the hills we don't need to have to focus on where the hydro is to keep it from shifting on us.
Our lives are in your hands on these hills and there is no room for a second chance it has to be right the first time. I hope Gleaner clarifies this soon.