PLATE AS 5262393 - Caterpillar

Illustration 1 g00837336
Gear pump for the CFX1-UP, DCL1-UP, and ASH1-UP
Illustration 2 g00901809
Gear pump for the CFK1-UP, CYE1-UP, CFP1-UP, and DAC1-UPThe gear pump is a fixed displacement pump. The gear pump supplies oil to the steering circuit and the leveling blade circuit (if equipped). The gear pump also provides charge oil for the propel circuit and the vibratory circuit. The flow divider spool divides the flow between the steering circuit and the charge circuit. The steering circuit has priority, and the return flow from the steering circuit returns into the charge circuit.When the machine is running, output oil from the pump gears enters the valve body. The oil flows through internal passages into the center of flow divider spool. The oil is directed into the steering circuit.Pressure that is acting on the flow divider spool creates a force on the spool. When the pressure is high enough, the spool moves and the spool compresses the spring. This allows oil to flow through internal passages into the charge circuit.The flow divider acts as a priority valve when the steering system is operated. Pilot signal oil acts against the upper end of the priority valve in addition to the force of the spring. The increased force moves the spool and oil is directed into the steering circuit.The pilot signal oil also acts against the relief valve. The relief valve empties into the pump inlet. The relief valve serves as the pressure relief for the steering cylinders.