Description
Woodward UG-88521-349
Technical Specifications
- Base Model: UG-8
- Part Number: 8521-349
- Type: Mechanical-hydraulic speed governor
Functional Features
- Custom Calibration: Factory-set for specific engine fuel rack and load dynamics.
- Reliable Control: Proven UG-8 mechanical-hydraulic reliability.
- High-Force Output: Hydraulic servo sized for the designated application.
Application Scenarios
Deployed as a direct replacement for diesel engines originally equipped with the 8521-349 specification governor.
Performance Parameters
- Speed Regulation: Optimized for the specific engine application.
- Actuator Stroke: Calibrated to match fuel rack travel requirements.
Material Composition
Industrial-grade components with precision calibration for consistent performance.
Structural Characteristics
- Exact Footprint: Matches the dimensional envelope of the original 8521-349 unit.
- Integrated Hydraulic System: Self-contained servo and pilot valve assembly.
Working Principle
Mechanical flyweights sense speed and modulate a hydraulic pilot valve. Oil pressure moves a servo piston to adjust the fuel rack, with internal components calibrated specifically for the 8521-349 performance curve.
Installation Requirements
Verify part number 8521-349 matches the equipment specification. Ensure proper linkage alignment and oil level.
Precautions for Use
Do not interchange with other UG-8 part numbers without verifying compatibility. Perform no-load and full-load tests after installation to verify proper operation.
