Without specific Caterpillar product documentation, it's difficult to determine the exact displacement value. However, for hydraulic piston pumps used in Caterpillar backhoe loaders and related engine systems, the displacement is an important parameter that influences the pump's ability to supply hydraulic fluid for various functions such as boom operation, bucket movement, and auxiliary hydraulic tasks. The displacement could typically range from tens to a few hundred cubic centimeters per revolution (cm³/rev). A higher displacement value means the pump can move more fluid per revolution, enabling more powerful and efficient operation of the hydraulic actuators.
Operating Pressure
These pumps are designed to operate at pressures that can meet the demanding requirements of backhoe loader operations. The maximum operating pressure for the 267-2755/2672755 pump in the context of the 420E, 430E, 432E, 434E, 442E backhoe loaders and the associated engines is likely to be in the range of 200 bar (20 MPa) to 350 bar (35 MPa). This high pressure is necessary to drive the hydraulic cylinders and motors that perform tasks like digging, lifting, and swinging. The exact maximum operating pressure should be obtained from Caterpillar's official specifications for this pump model.
