Why is it important to bleed air from a hydraulic system?

Bleeding air from a hydraulic system is crucial because trapped air can lead to spongy or erratic performance of the hydraulic system. When air is present in the hydraulic fluid, it can compress under pressure, which impairs the system's ability to transmit force efficiently. This can result in a loss of responsiveness in the hydraulic components, such as actuators or cylinders, leading to unpredictable movements and reduced overall effectiveness.

Removing this air ensures that the hydraulic fluid can transfer pressure consistently, maintaining the system's efficiency and performance. Additionally, it helps in preventing cavitation and potential damage to components within the system by allowing for a more stable and reliable operation.