Hydraulic System Description

The machine is equipped with a so-called "open-center hydraulic system", i.e. with engine running at constant speed the hydraulic pump conveys a constant amount of hydraulic oil.

The hydraulic pump is a triple pump:

· Pump (A) conveys 28.6 L/min. (7.55 gpm)

· Pump (B) conveys 28.6 L/min. (7.55 gpm)

· Pump (C) conveys 10.6 L/min. (2.80 gpm)

If no pressure oil is required, the pressure valves direct pressure-free oil back to the tank.

The main hydraulic valve block (D) is located on the left side of the combine near to the battery.

The secondary hydraulic valve block (E) is located a few inches away and above from main hydarulic valve block (D).


A-Pump (Hydraulic System)
B-Pump (Reel Drive)
C-Pump (Steering System)
D-Primary hydraulic valve block
E-Secondary hydraulic valve block

CQ194290
CQ203360
CQ209411

AG,CO03622,2273 -19-15MAR02-1/1