Which outcome occurs when a proportional control valve in a hydraulic actuator system experiences excessive spool valve overlap?

💡 Explanation

When spool valve overlap is excessive, the valve inadvertently restricts flow in both directions simultaneously near the null position, causing positional hunting because the actuator oscillates while seeking a stable state. Therefore, increased positional hunting during setpoint changes results, rather than reduced bandwidth, increased power consumption, or elevated temperature, which involve different failure modes.

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