MILWAUKEE, Wis. — Deere’s S series combines are receiving improved systems for small grains next year.
After the much anticipated release of John Deere’s new combine line a couple of seasons ago, some producers suggested that improvements for small grains, oilseeds and tough harvesting conditions were in order.
“The machines saw dramatic increases in capacity, but there were refinements we wanted to make. Our customers told us where they thought changes could be made and we made it happen,” said Emily Priebe of John Deere.
Deere added an hydraulically managed concave system to take advantage of the machines’ increased threshing area and increased horsepower: 473 h.p. for the S680 series and 543 h.p. for the 690 series, as well as an additional 50 h.p. for unloading on the go.
The active hydraulic isolation design senses the load as large clots of crop move through the system and is able to widen the gap to keep the machine from plugging, without significant grain losses.
Priebe said the system eliminates shear and eye bolts from the concave design. Both were maintenance items that required replacement.
“Under a heavy, variable load, it also makes the machines a lot quieter, less of the banging sounds from the rotor (area),” she said.
Interrupter bars and heavy-duty separator gates, which are part of the new Tough Crop Package, are designed to handle increased loading from heavy crops and wide headers.
A four-strand feeder house chain and a new eight-inch drum improves crop feeding by 10 percent and allows more space in the feeder house. The feed accelerator receives eight wings to push crop into the rotors more evenly.
Tilting the header on the feeder house from the cab allows producers to improve the angle of attack for the knife on the go, said Priebe, a Harvester Works specialist from East Moline, Illinois.
“As the crop conditions change during the day or the field changes, it means you don’t have to stop to reset it or slow down to keep the crop flowing efficiently, hoping things will improve,” she said.
“These improvements were aimed at the western Canadian market and the Dakotas and Montana. Big crops, lots of material, lots of variety and a tight harvesting window.”
Priebe told dealers attending the company’s 2015 model year launch that a new 45 foot flex header, which is five feet wider than its predecessor, improves overall capacity by 20 percent.
The 645FD draper flex-header allows for 7.5 inches of flex of the cutter bar. The header was previously available in 30, 35 and 40 foot models.
The big unit receives a wider centre section, which allows for a 15 percent increase in crop flow into the feeder house.