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