English-49
DESIGN AND FUNCTION
Sub-circuit function
General
All hydraulic oil, both to the working hydraulics and the hydraulics for the drive system come from the
tank (14), with the inlet strainer (11) and via the gear pump for working hydraulics (8). This pump provides
the control unit with a variable pressure depending on what task the machine is performing. In the control
unit (4) is an excess flow valve, which leads the excess hydraulic oil to the variable axial piston pump for
the drive system (9) and to the valve block for transmission (6). After the control unit, the oil is piped to the
valve block for working hydraulics (5). From the control unit and the working hydraulics, oil flows to the
drive system pump (9). The drive system uses this oil for the wheel motors (7). The flushing valve (10)
replaces a certain amount of oil flowing to the tank via the oil cooler (120. The control unit (4) consists of a
hydraulic valve controlled by a wheel, which regulates the steering cylinder (3).
8043-108
Component Locations
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