John Deere S680 Combine Harvesting Soybeans with a John Deere 640FD HydraFlex Draper November 7, 2013 by farmlifetoday bigtractorpowerThu, November 7, 2013 4:25pmURL:Embed:John Deere S680 Combine Harvesting Soybeans with a John Deere 640FD HydraFlex Draper