Description
The Woodward 8256-086 is a powerful, heavy-duty actuator designated as part of the 524 EPG (Electrical Powered Governor) series. Designed specifically for integration into 24-volt DC power architectures, this unit provides the robust mechanical torque required for governing larger or more demanding prime movers. Its architecture is built for consistency, ensuring that the engine maintains precise speed control under varying operational stresses, which is vital for industrial-grade power generation.
As a specialized Woodward 8256-086 component, this model is equipped with a high-fidelity 50 kΩ potentiometer dedicated to the idle speed adjustment feature. This allows operators to fine-tune the engine’s idling characteristics precisely, ensuring smooth performance during warm-ups or low-load periods. The combination of high power capacity and tunable idle logic makes the 8256-086 a versatile solution for a variety of fuel-based engine configurations.
Technical Specifications
- Product Name: EPG 524 Series Actuator
- Model Number: 8256-086
- Operating Voltage: 24 V DC
- Power Consumption: 95 W (Maximum)
- Integrated Component: 50 kΩ Potentiometer (Idle Speed Adjustment)
- Compatibility: Woodward 524-series EPG controllers
- Weight: Approximately 3.5 kg
- Dimensions: Heavy-duty housing for demanding environments
- Origin: Manufactured to stringent Woodward industrial specifications
Frequently Asked Questions
⚙️ Why is the 50 kΩ potentiometer important for idle speed? The potentiometer acts as a variable resistor that provides the governor controller with the necessary feedback to hold a stable RPM at idle. By using a 50 kΩ component, the controller can make minute adjustments to the fuel rack, preventing the “hunting” or stalling that can occur when an engine is not properly calibrated for low-load operation.
🔌 Does the 95W power rating affect my electrical installation? Yes. Because this actuator draws up to 95W at 24V (approx. 4A), it is essential to use appropriately gauged wiring to prevent voltage drops. A significant voltage drop can result in sluggish actuator response or insufficient torque, undermining the governor’s ability to maintain stable speed.
⚠️ How does this 24V model differ from 12V variants? While the internal mechanical operation remains similar, the electrical windings are optimized specifically for the higher 24V potential. Using this unit on a 12V system would result in insufficient power to drive the actuator, while attempting to use a 12V unit on a 24V system could lead to immediate electrical burnout.
🛠️ How do I properly adjust the idle speed feature? With the engine running at operating temperature and no load, use a digital tachometer to monitor the RPM. Slowly turn the 50 kΩ idle potentiometer while observing the engine’s response. The goal is to reach the factory-recommended idle speed where the engine runs smoothly without vibration or fluctuations.
Recommended Woodward Series Models
To support your EPG 524-based system, consider these related Woodward controllers and actuators often used in parallel or modular configurations:
- Woodward 524 EPG Controller
- Woodward 8290-027 EPG Control
- Woodward 8290-030 EPG Control
- Woodward 8256-009 EPG Actuator
- Woodward 8256-022 (512 Series)
- Woodward 8256-079 (1724 Series)
- Woodward 8440-013 (501 Series)
- Woodward EG-3P Actuator
- Woodward EG-6P Actuator
- Woodward L-Series Electric Actuator
