Which outcome occurs when a hydraulic actuator's return line experiences excessive back pressure during rapid extension?

💡 Explanation

When high back pressure opposes rapid extension, cavitation occurs, because the actuator attempts to draw more fluid than the line can provide, causing vapor bubbles to form and collapse as they enter higher pressure zones. Therefore, cavitation damage inside the actuator results, opposing force output or bending the piston, whose alternatives require mechanical overloading or pressure imbalances.

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