Woodward UG-10 Lever Governor Mechanical-Hydraulic Governor
150 PSI OIL · 42° TERMINAL TRAVEL · MECHANICAL-HYDRAULIC CONTROL
Product Overview
Product identityWoodward UG-10 Lever Governor is a mechanical-hydraulic governor for diesel, dual-fuel or steam-turbine prime movers. Its lever and terminal shaft operate the connected fuel rack or steam valve so speed control is translated into mechanical output.
For Woodward UG-10 Lever Governor, the hydraulic control oil enters the governor body, the speed-sensing mechanism resolves the speed condition, and the output shaft moves the external linkage. The UG-10 work output is 11.7 ft-lb (15.9 J), the maximum terminal-shaft travel is 42°, and the recommended travel is about two-thirds of the available range.
Product Data
Verified data| Technical item | Value |
|---|---|
| Brand | Woodward |
| Product type | Mechanical-hydraulic lever governor |
| Model | UG-10 Lever Governor |
| Oil pressure | 150 psi (1034 kPa) |
| Work output | 11.7 ft-lb (15.9 J) |
| Maximum terminal travel | 42° |
| Recommended travel | Approximately two-thirds of available travel |
| Operating speed | Maximum constant operation 1500 rpm |
| Oil capacity | 1.9 L |
| Oil grade | SAE 10–50 |
| Mounting | Vertical to 45° from vertical |
Product Functions
Product focusWoodward UG-10 Lever Governor converts the speed-control demand into a mechanical shaft movement for the connected fuel rack or steam valve.
The governor mechanism responds to prime-mover speed and positions the control output. The sensing mechanism creates the control demand that the hydraulic circuit acts on.
The 150 psi oil circuit supplies the hydraulic force used to move the output shaft. Oil pressure supplies force to the governor mechanism rather than to an electronic output.
The terminal shaft carries the governor movement into the external fuel or steam-control linkage. The terminal shaft is the physical interface to the external control member.
Woodward UG-10 Lever Governor carries the terminal-shaft movement into the external rack or valve linkage as the final mechanical control output. The output boundary ends at the external rack or valve linkage.
Performance Characteristics
Integration focusThe operating limits of Woodward UG-10 Lever Governor define how the output travel, oil supply and speed range interact.
The terminal shaft can travel up to 42°, with about two-thirds recommended for normal no-load to full-load movement. The travel window determines the usable mechanical range.
The 11.7 ft-lb (15.9 J) work output is the available mechanical output at the lever interface. The work rating describes the output available at the lever interface.
The governor uses 1.9 L of SAE 10–50 oil and the UG-10 pressure is 150 psi (1034 kPa). The oil requirement defines the hydraulic operating boundary.
Woodward UG-10 Lever Governor is limited by its 1500 rpm maximum constant operating speed and the available 42° terminal travel. The speed and travel limits must be considered together for the installed governor.
Questions About This Product
Field questionsWhat oil pressure is required for Woodward UG-10 Lever Governor?
For the Woodward UG-10 Lever Governor setup, use 150 psi (1034 kPa) control oil for the UG-10. Do not substitute the lower pressure used by the smaller UG-5.7 or UG-8 variants.
How much terminal travel is available on Woodward UG-10 Lever Governor?
In Woodward UG-10 Lever Governor, the maximum terminal-shaft travel is 42°, while normal linkage design uses about two-thirds of that travel. Set the external linkage so shutdown and maximum-fuel overtravel remain available.
Where should Woodward UG-10 Lever Governor be mounted?
For Woodward UG-10 Lever Governor, the governor can be mounted vertically or up to 45° from vertical. Confirm the installed orientation before routing the oil and connecting the external linkage.
What oil belongs in Woodward UG-10 Lever Governor?
Within Woodward UG-10 Lever Governor, the governor oil capacity is 1.9 L and the specified range is SAE 10–50. Keep the oil condition and level within the governor control requirements before adjusting speed.
Can Woodward UG-10 Lever Governor directly drive a steam valve?
On Woodward UG-10 Lever Governor, yes, the governor is described for steam-turbine control and its lever is mechanically linked to the fuel rack or fuel valve depending on the prime mover. The external linkage must still match the available travel.
How can a Woodward UG-10 Lever Governor speed problem be isolated?
For Woodward UG-10 Lever Governor, check the oil pressure and level, then compare terminal-shaft travel with the linkage limits. A mechanical stop or linkage mismatch should be separated from the governor hydraulic condition.
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