TM 5-3895-373-201.18.7. FlowGateElectricalCircuit.The flow gateelectrical circuit consists of four toggle switches and tworeversible, linear actuators. All four switches are double-pole/double-throw (DPDT), three-position (center off),and spring-loaded return to off.The operator switch panel controls both flow gates with aleft flow gate switch and a right flow gate switch. Eachscreed control panel also controls the flow gate on thatside.Circuit breakers CB2 and CB3 jointly power the flow gatecircuit. Each flow gate switch has two inputs. One inputis 12 VDC. The other input is ground. Placing the flowgate switch in the up, RAISE position, applies 12 VDC toone output line and ground to the other. The flow gateswitch output drives the flow gate linear actuator. Theflow gate linear actuator contains a reversible DC motor.Placing the flow gate switch in the down, LOWERposition, reverses polarity to the output contacts, and thelinear actuator reverses direction.1-32
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