Description
The Woodward 8256-021 is a specialized member of the EPG series, often categorized within the 524 product classification. This robust Actuator is engineered to provide precise fuel positioning for internal combustion engines and turbine applications. Designed with environmental versatility in mind, the 8256-021 offers significant flexibility in installation, allowing for various mounting orientations to accommodate crowded engine compartments without sacrificing performance or control accuracy.
Product Technical Details
- Model Number: 8256-021
- Series: EPG (524 Configuration)
- Mounting: Universal orientation allowed
- Operating Temp Range: -40 °F to +200 °F (-40 °C to +93 °C)
- Wiring Requirements: Pre-determined factory wire lengths for signal integrity
- Weight: ~1.9 kg
- Country of Origin: United States of America
Common Questions & Answers
💡 Does the mounting orientation really not affect performance? While the unit is mechanically robust enough to be mounted in any position, it is critical that the linkage remains aligned with the intended path of travel. Even with universal mounting, any induced side-load on the actuator shaft can increase friction and wear. Always ensure that the linkage geometry remains smooth throughout the entire operating stroke.
⚙️ Why are the wire lengths strictly defined for this model? The 8256-021 uses low-voltage, high-current pulses to move the internal solenoid. Excessive wire length or the use of incorrect gauge cabling can introduce voltage drops or signal interference. Maintaining the factory-specified wire lengths ensures the actuator receives the full power required for its dynamic response times, preventing potential governing errors.
🛡️ How does this handle extreme temperatures? The unit is internally protected with high-temperature materials and insulation, allowing it to function reliably in ambient temperatures from -40 °F to +200 °F. This makes it an ideal choice for outdoor generator sets operating in harsh climates or high-heat industrial engine bays.
🔧 What is the significance of the 524 model designation? The 524 series designation helps technicians identify the specific internal coil impedance and performance curve of the unit. This classification is vital when replacing or matching the actuator to a specific speed controller, as mismatching these can lead to unstable engine idle or load-sharing issues.
Recommended Woodward Series & Models
If you are managing installations involving the 8256-021, these related models from the EPG and broader Woodward catalog are frequently encountered:
- Woodward 8290-038 (Standard EPG Control Module)
- Woodward 8256-012 (Alternative EPG Actuator model)
- Woodward 8290-039 (Multi-voltage Speed Control)
- Woodward 8272-356 (Magnetic Pickup Sensor)
- Woodward 8256-008 (24V Battery-based Actuator)
- Woodward 8270-1002 (701A Digital Governor)
- Woodward 8290-186 (Integrated Control System)
- Woodward 8404-1002 (Peak 150 Control)
- Woodward 8273-001 (EasyGen 1000 Control)
- Woodward 9907-162 (2301A Load Sharing Controller)
