Digital guide
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Woodward 9907-614
Product family: Woodward actuator (confirmed in Woodward Governor digital modules & miscellaneous parts catalog as “9907-614 Actuator”).
Product brief: The 9907-614 is a Woodward actuator for positioning fuel or steam metering devices in prime-mover control systems. Woodward actuators in this class are typically linear or rotary electric/hydraulic actuators driven by a 0–200 mA control signal from a 2301A or similar speed control.
Detailed content
Key specifications (typical for Woodward 0–200 mA actuators):
- Drive signal: 0–200 mA from the 2301A speed control
- Forward- or reverse-acting compatibility (matches the driving control)
- Operating temperature: –40 to +70 °C (consistent with 2301A platform)
- Compatible with single or tandem actuator configurations
Functional highlights: Translates the 0–200 mA command from the speed control into precise mechanical motion of the fuel rack or steam valve. In reverse-acting systems, loss of actuator voltage drives to full fuel, allowing a backup mechanical governor to take over.
Applications: Diesel engine fuel-rack positioning, gas-engine fuel metering, steam-turbine valve actuation—paired with 2301A, 2301D, or 828 controls.
Installation & safety notes: The actuator must be mechanically linked to the fuel/steam metering device with correct direction of action (verify forward vs. reverse against the driving control). Calibrate the actuator zero and span so that 0 mA = minimum fuel and 200 mA = maximum fuel (or inverted for reverse-acting). Ensure the linkage cannot bind. The prime mover must have an independent overspeed trip—the actuator is a control element, not a safety device.
