Feb 3, 2006 / Power steering loosing power #161 J jrwattsjr Member Joined Feb 3, 2006 Messages 43 Location southeast va Tractor JD 4100 On hydrostatic older models use the hdrostatic charging pump not the aux hydraulic pumps which runs the scv and lift system. On newer unit had a separate pump for steering.
On hydrostatic older models use the hdrostatic charging pump not the aux hydraulic pumps which runs the scv and lift system. On newer unit had a separate pump for steering.