The speeds on the gearbox overlap. "The key is that this new gearbox allows me to accommodate for a wider variance of crop conditions, and a wider variance of speeds," Bien explains. "This allows me to run on the high side of the low range of the gearbox in a lot of crops and conditions so that I get more torque."
They also upgraded the front feed conveyor system to deliver the crop to the processor faster.
"We ended up changing the slat configuration on the feed chain on the front," Bien says. "What we do is we grab the crop and then we release it quicker to the rear feed conveyor, so we can get it into the processor, because the big challenge right now is to feed that animal."
To help pull the crop into the processor faster, the rear feed conveyor was also upgraded.
"On the rear feed conveyor area, we actually went to a two V belt system which basically changed everything on the right-hand side of the combine in model year 2013, getting ready for the S8," Bien continues. "Now we've increased the amount of volume we can take through there and the amount of horsepower. We can actually take about 50% more horsepower through that drive system than we could in the previous models."
A new two-stage cleaning system with distribution augers and accelerator rolls accelerates the crop at four times the speed of gravity, eliminating most of the material other than grain, or MOG, before it gets to the cleaning shoe.
"We're doing two-thirds of the cleaning before [the grain] ever hits the shoe," Bien says, adding other manufacturers clean all grain on the shoe. "When you get a wet year and you have wet leaves and you've got all that MOG that you're having to deal with, the shoe is having to work itself to death."
The clean-grain elevator has 30% more capacity and moves grain away from the shoe faster. The new clean-grain cross auger has a deeper grain auger trough, a below-centerline cross auger, and heavier chain and thicker elevator paddles.