907. An electric motor driven (torque producing) remotely controlled, valve actuator is installed on the high sea suction with the 'red' indicator light illuminated. When the 'open' push button is depressed, the 'green' indicator light comes on momentarily and then goes out, without any appreciable movement of the valve. Which of the following actions should be carried out?

Question

Accepted Answer

manually engage the actuator hand wheel and 'break' the valve disk from its seat, then push the 'open' button.

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