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