HI, I OWN A 1993 J.D.SKID STEER IT HAS BEEN MINE SINCE 1996. THEN IN 2002 IT STARTED GIVING ME HYDROSTATIC CHARGE PROBLEMS AT 1800HRS AND ITS STILL THE SAME TODAY WITH 2100HRS. I HAVE CHANGED THE CHARGE PUMP 2 TIMES AND RAN ALL SORTS OF PRESSURE TEST ON IT. MY LOCAL J.D./ NEW HOLLAND DEALER DOES...