Which malfunction occurs when a hydraulic directional control valve experiences spool valve stiction?

💡 Explanation

When spool stiction exists in a directional control valve, the valve requires greater force to shift positions because the lubrication film is disrupted, which results in jerky or uneven movement transferred to actuators. Therefore inconsistent positioning results, rather than velocity oscillations, bulk modulus shift, or temperature rise, which involve distinct processes.

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