??????? ?? 4020, ????? ???? ??? ? ??????? ?? Deere Ability Change, ?????? ??-?????? ???? ?? ???????????, 4010 ???????? John Deere ? ??? ????? ????? ??????????, ??????? ????????? ??? ??????????? ???? – ??? ?????? ????????? ???????????? ??? ???????? ? ?????? ?????? – ???????? ? ?? ?????????? ?? John Deere.. ???????? ?????? ??????????? ?? ????? ?