Without specific Caterpillar product documentation, it's challenging to determine the exact displacement value. However, for hydraulic main pumps used in Caterpillar excavators like the 390FL and 374F, the displacement is a key parameter that affects the pump's ability to supply hydraulic fluid for various functions such as boom movement, bucket operation, and rotation. It could typically range from 200 to 400 cubic centimeters per revolution (cm³/rev). A higher displacement allows the pump to move more fluid per revolution, enabling more powerful and efficient operation of the hydraulic actuators in these excavators.
Operating Pressure
These pumps are designed to handle high pressures to meet the demanding requirements of excavator operations. The maximum operating pressure for the 369-9655, 5763072, 576-3072 pumps in the context of the 390FL and 374F excavators is likely to be in the range of 250 bar (25 MPa) to 400 bar (40 MPa). This high pressure is necessary to drive the large hydraulic cylinders and motors that perform tasks like heavy-duty digging and lifting. The exact maximum operating pressure should be obtained from Caterpillar's official specifications for this specific pump model.
