Charge pump for Caterpillar machinery

The charge pump M1262147 functions as an auxiliary hydraulic component within closed-loop systems, such as those found in hydrostatic transmissions or piston pump assemblies. It provides a consistent flow of oil at low pressure to the main circuit, which compensates for internal leakage, lubricates moving parts, and maintains positive pressure on the suction side of the main pump to prevent cavitation.

This component is compatible with various Caterpillar heavy machinery models that utilize hydrostatic or closed-loop hydraulic systems, including loaders, excavators, tractors, and motor graders. The part is manufactured to meet the specific hydraulic requirements of these Caterpillar applications.

In hydraulic systems, a charge pump serves as the primary source of make-up fluid. By ensuring the main pump remains primed and pressurized, it protects the system from the damage associated with cavitation and fluid starvation. Proper function of this pump is necessary for the overall efficiency and operational stability of the machine hydraulic circuit.