Counterbalance valve for Genie 2-60/34/4WD

The 37090 counterbalance valve is a hydraulic component that manages the movement of cylinders under load. It prevents uncontrolled motion caused by gravity or external forces and acts as a hydraulic brake to allow for controlled descent and position holding when the system is under pressure or at rest. This component is typically installed on cylinders supporting the boom or jib structures to ensure precise and stable operation during lifting, extension, and retraction cycles.

This part is compatible with the Genie 2-60/34/4WD. The valve contains an internal spool and spring mechanism that regulates oil flow, opening only when pilot pressure exceeds the counterbalancing load. This design prevents sudden movement in the event of a hydraulic line failure or a loss of pump pressure. Proper calibration of this valve is necessary for the intended movement characteristics of the machine.

Counterbalance valves function as safety devices in hydraulic circuits by locking the cylinder in place until the operator initiates movement. By maintaining backpressure, they prevent cavitation and ensure that the hydraulic system remains responsive and predictable during operation, particularly when handling loads or working on inclines.