Hydraulic unit for Sundstrand machinery

This hydraulic unit functions as a key component within hydrostatic transmission systems. It is designed to facilitate power transmission by converting mechanical energy into hydraulic energy or vice versa, effectively managing fluid flow and pressure to drive various machine actuators. The unit is manufactured by Sundstrand and is also referenced by the part number 113003974.

As a variable displacement axial piston component, this unit is engineered for integration into complex hydraulic circuits found in diverse heavy equipment, including mobile cranes, excavators, and loaders. It utilizes an internal piston and swashplate configuration to regulate displacement, which allows for precise control over output speed and torque during operation.

In hydrostatic systems, these units serve as the primary source of power for driving travel motors or auxiliary hydraulic functions. By adjusting the angle of the swashplate, the unit can modify its displacement to match the load requirements of the machine. Proper maintenance of the hydraulic fluid and regular inspection of the external seals and connections are necessary to ensure the continued functionality of the transmission system and to prevent pressure loss during operation.