Product Overview

The Woodward 8256-016 operates as a high-performance 24 Vdc actuator within Electrically Powered Governor (EPG) systems. It provides the mechanical force required to position fuel racks or throttle valves on diesel, gas, gasoline engines, and small gas turbines. The actuator converts electrical control signals into precise rotary motion, ensuring stable engine operation under varying load conditions.

Technical Specifications

Engineering Advantages

High Torque-to-Size Ratio
Delivers up to 2.3 J of work output in a compact form factor, ensuring sufficient force to overcome linkage friction and strong return springs in industrial engine systems.

Flexible Installation
Supports “Any Configuration” mounting with a dual-ended serrated shaft, enabling versatile installation and simplified retrofitting in confined engine compartments.

Extreme Environment Durability
Operates reliably across a wide temperature range (-40 to +93 °C). Rugged construction withstands vibration, oil mist, and harsh engine room conditions.

Efficient Power Management
Optimized current consumption during steady-state operation, while maintaining 95 W peak power for fast transient response, reducing load on the 24 Vdc supply system.

FAQs

What type of battery charger does this actuator require?
A charging system capable of supplying at least 5 A is recommended to ensure adequate performance during transient load changes.

Can the 8256-016 be used on 12 Vdc systems?
No. This model requires a nominal 24 Vdc supply. Operating below 20 Vdc may result in insufficient torque and unstable control.

What is the benefit of the serrated shaft design?
The 0.375"-36 SAE serrated shaft prevents slippage, ensuring accurate positioning and stable operation under high vibration.

How should I protect the electrical circuit?
Use a 10 A slow-blow fuse or circuit breaker on the non-grounded battery lead to protect against overcurrent conditions.