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Summary of Contents for Woodward UG-5.7 Dial
- Page 1 Installation and Operation Manual UG Dial Governor UG-5.7/UG-8/UG-10 Dial Manual 03040 (Revision E)
- Page 2 Revisions—Text changes are indicated by a black line alongside the text. Woodward Governor Company reserves the right to update any portion of this publication at any time. Information provided by Woodward Governor Company is believed to be correct and reliable. However, no responsibility is assumed by Woodward Governor Company unless otherwise expressly undertaken.
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Page 3: Table Of Contents
8. S ..............51 HAPTER ERVICE PTIONS Product Service Options ..................51 Woodward Factory Servicing Options ..............52 Returning Equipment for Repair ................53 Replacement Parts ....................53 Engineering Services .................... 54 How to Contact Woodward ................... 54 ... - Page 4 Table 5-1. Troubleshooting Chart ................. 28 Table 5-2. Governor Output Shaft Travel vs Butterfly Valve Travel ..... 32 Table 5-3. List of Common Bench Tools .............. 33 Table 5-4. List of Normal Field Repair Tools ............34 Woodward...
- Page 5 Manual 03040 UG Dial Governor Woodward...
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Page 6: Figure 1-1. Ug-8 Dial Governor
UG Dial Governor Manual 03040 Figure 1-1. UG-8 Dial Governor Woodward... -
Page 7: Chapter 1. General Information
An indicator dial shows the governor output shaft limit position. The load limit control may also be used for shutting down the prime mover by turning it to zero. Woodward... -
Page 8: References
* UG-8—13.2 Nm (9.7 lb-ft) * UG-10—15.9 Nm (11.7 lb-ft) Figure 1-2. Recommended Output Shaft Travel Adjustment References The publications listed below are available on Woodward’s website (www.woodward.com). Some of the manuals are briefly covered in Chapter 7, Auxiliary Equipment. Pub. Pub. Type... -
Page 10: Chapter 2. Installation Procedures
Before installation, remove the soft seal with a rag saturated with mineral spirits. Storage If a governor is being stored for any period of time, please refer to Woodward manual 25075, Commercial Preservation Packaging for Storage of Mechanical- Hydraulic Controls. -
Page 11: Linkage Attachments
Failure to provide sufficient overtravel at minimum fuel position can prevent the governor from shutting down the prime mover and result in possible damage to equipment and personal injury. Woodward... -
Page 12: Figure 2-1. Linkage Arrangement (For Non-Linear Fuel Systems)
See also Table 5-2 for a satisfactory relationship between governor output shaft travel and butterfly valve travel in a non-linear system. For more information on non-linear linkage, please refer to Woodward Application Note 50516, Governor Linkage for Butterfly Throttle Valves. -
Page 13: Oil Supply
Many automotive and gas engine oils, industrial lubricating oils, and other oils of mineral or synthetic origin meet these requirements. Woodward governors are designed to give stable operation with most oils with the viscosity, at the operating temperature, between 50 and 3000 SUS (Saybolt Universal Seconds). - Page 14 UG Dial Governor Manual 03040 Table 2-1. Oil Chart Table 2-2. Viscosity Comparisons Woodward...
- Page 15 (140 to 200 °F). The ambient temperature limits are –29 to +93 °C (–20 to +200 °F). Measure the temperature of the governor on the outside lower part of the case. The actual oil temperature will be slightly warmer, approximately 6 °C (10 °F). Woodward...
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Page 16: Chapter 3. Principles Of Operation
UG-8), or 1034 kPa/150 psi (UG-10), oil is released back to sump through a relief port (12) in each cylinder. Oil flows from the accumulator through passages to the top of the power piston and to the pilot valve system. Woodward... - Page 17 (30) rides on the toes of the flyweights (24). The speeder spring (25) is held in position against the thrust bearing (30) by the speeder plug (29). The speeder plug (29) is used to set a pressure on the speeder spring (25). Woodward...
- Page 19 The needle valve (33) is a variable orifice which controls the flow of oil between both the large (34) and the small dashpot compensation (35) pistons, and the oil sump. Compensation must be properly adjusted to the particular engine and load to provide stable operation (see Chapter 4, Compensation Adjustments). Woodward...
- Page 20 If instead of a decrease in speed, an increase takes place, the governor shows a negative droop. Negative droop will cause instability in a governor. Woodward...
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Page 21: Operation Of The Ug Dial Governor
Operation of the UG Dial Governor General Information Refer to Figure 3-1 with the text to better understand the operation of the UG Dial governor. This schematic diagram is of a basic design and does not include any auxiliary equipment. Woodward... - Page 22 (39). 10. This stops the governor output shaft and power piston movement in the new decreased fuel position. This is the position needed to run the prime mover at the selected speed setting with the new load. Woodward...
- Page 23 (18). The rate at which the small dashpot compensation piston (35) is returned to normal is controlled by the needle valve adjustment, that is, the rate of flow of oil through the needle valve (33). Woodward...
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Page 24: Chapter 4. Governor Operation And Adjustments
Compensation Adjustments The compensation needle valve and pointer are adjustable parts of the compensation system. Their settings directly affect governor stability. Compensation must be properly adjusted to the particular engine and load to provide stable operation. Woodward... - Page 25 (needle valve adjustment) after a speed disturbance with only a slight over- or undershoot (compensation pointer adjustment). Woodward...
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Page 26: Initial Operation For A Repaired Or Reassembled Governor
If accurate tests and adjustments are to be made, it is best to use a test stand since it is difficult to make them when the governor is mounted on an engine. Write or phone Woodward for a test specification for the governor part number shown on the nameplate fastened to the governor. - Page 27 Table 4-1. Test Stand Tools Tool Description Woodward Number Application Woodward Test Stand Engine simulator. Drives governor. Supplies pressure oil. Includes gauges for testing. Electronic Counter and Indicates governor drive speed. Must have an output...
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Page 28: Test Procedures
(189) counterclockwise to reduce droop. Turn the screw clockwise to increase droop. Tighten the locknut. Repeat the above procedure until speed is within 0 to 3 rpm lower when running the engine from no load to full load positions. Woodward... -
Page 29: Figure 4-1. Maximum/Minimum Speed Stop Adjustment On The Governor
13. Set the maximum and/or minimum speed limit on the governor. This adjustment can also be made with the prime mover running. To make the adjustment, first remove the governor dial plate (see Figure 4-1). Figure 4-1. Maximum/Minimum Speed Stop Adjustment on the Governor Woodward... - Page 30 Adjust the cams by loosening the screws and turning the cams on the shaft. Tighten the screws again. 19. On governors equipped with solenoid shutdown, please refer to Woodward manual 03013 for set-up procedures. 20. Turn the load limit knob to zero. The load limit indicator must move to zero.
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Page 31: Test Completion
For more information on load sharing, please refer to manual 25195, Governing Fundamentals. Woodward... -
Page 32: Chapter 5. Troubleshooting
High overspeeds and low underspeeds, or slow return to speed, after a load change or speed setting change, are some of the results of an incorrect setting of the compensating adjustment and needle valve. Woodward... -
Page 33: Definitions
The use of commercial solvents is not recommended as they may damage seals or gaskets. Change the oil and flush the governor twice a year if possible. Woodward... - Page 34 Repair and realign linkage and/or pumps. governor linkage or fuel pumps. H. Governor output shaft travel Adjust travel until proper travel is obtained. too short to provide full fuel. I. Spring on yield linkage to fuel Install heavier spring. racks too weak. Woodward...
- Page 35 B. Cranking speed too low. May be necessary to use a booster servomotor. See cranking prime mover. manual 36684, Booster Servomotor. C. Booster servomotor (if used) Check action of automatic air starting valve. See not functioning properly. manual 36684, Booster Servomotor. Woodward...
- Page 36 Return governor to factory to inspect pump and check valves if oil pressure is low. D. Engine may be overloaded. Reduce load. E. Restricted fuel supply. Clean fuel supply filters. F. Load limit knob set to restrict Increase load limit setting. fuel. Woodward...
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Page 37: Additional Information For Steam Turbines, Gas And Gasoline Engines
(see Figure 2-1). The table below shows a satisfactory angular position of the governor output shaft for different openings of the butterfly valve in order to have a more stable operation at idle and at light loads. Woodward... -
Page 38: Governor Field Repairs
Seals and bearings can be replaced without these tools, however replacement of parts is made easier if these tools are available. Order tools from Woodward (see Chapter 8, Service Options). Include in order: The tool description The tool number or part number of the tool required... -
Page 39: Figure 5-1. Common Bench Tools
For No. 8:32 headless set screw Bench block 011971 To press out small bearings and bushings No. 2 Phillips head screwdriver 8995-049 Various screws on UG Hooked scribe 189792 Removing and installing cotter pins Figure 5-1. Common Bench Tools Woodward... -
Page 40: Figure 5-2. Normal Field Repair Tools
Bushing driver 8995-028 To adjust output shaft bushings Serration wrench 030943 Turning output shaft or drive shaft Torque wrench w/ 7/16” socket 8995-038 25 lb-in torque on drive shaft bearing retainer plate screws Figure 5-2. Normal Field Repair Tools Woodward... -
Page 41: Chapter 6. Replacement Parts
Refer to repair manual 56103 for correct and safe procedures when disassembly and assembly are required. Personal injury may result if accumulator springs are released suddenly. Use an arbor press to release or to install the compressed accumulator spring. Woodward... - Page 42 Soc hd pipe plug, 1/8" ........1 03040-37 Soc hd pipe plug, 1/8" ........1 03040-38 Ballhead drive gear ........... 1 03040-39 Connecting lever ..........1 03040-40 Straight pin............1 03040-41 Cotter pin, .030 x 3/8" ........2 03040-42 through 49 ........... Not Used Woodward...
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Page 43: Figure 6-1A. Parts Illustration For The Ug Dial Governor
Manual 03040 UG Dial Governor Figure 6-1a. Parts Illustration for the UG Dial Governor Woodward... - Page 44 Compensation link ..........1 03040-103 Compensation lever fulcrum ......1 03040-104 Compensation lever assembly ......1 03040-105 Preformed Packing Ring, .301 1 D x .070" ..1 03040-106 Case ..............1 03040-107 Output shaft ............1 03040-108 through 149 ..........Not Used Woodward...
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Page 45: Figure 6-1B. Parts Illustration For The Ug Dial Governor
Manual 03040 UG Dial Governor Figure 6-1b. Parts Illustration for the UG Dial Governor Woodward... - Page 46 Nut, 8-32 ............1 03040-191 Extension spring ..........1 03040-192 Speed droop lever screw ........1 03040-193 Washer, .500 OD ..........1 03040-194 Cotter pin, .060 x .500 ........1 03040-195 Speed droop lever ..........1 03040-196 through 199 ..........Not Used Woodward...
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Page 47: Figure 6-1C. Parts Illustration For The Ug Dial Governor
Manual 03040 UG Dial Governor Figure 6-1c. Parts Illustration for the UG Dial Governor Woodward... - Page 48 03040-215 Motor bracket ............ 1 03040-216 Shakeproof washer, No.8 ......... 4 03040-217 Phil rd hd screw, 8-32 x .312 ......4 03040-218 Oil filler cap (optional) ........1 03040-219 Cover (optional) ..........1 03040-220 through 249 ..........Not Used Woodward...
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Page 49: Figure 6-1D. Parts Illustration For The Ug Dial Governor
Manual 03040 UG Dial Governor Figure 6-1d. Parts Illustration for the UG Dial Governor Woodward... - Page 50 Phillips hd screw, 8-32 x 3/8” ......6 03040-294 Set screw 6-32 ..........1 03040-295 Cover-friction ............ 1 03040-296 Friction disc ............1 03040-297 Washer, .750 OD ..........1 03040-298 Friction washer spring ........1 03040-299 Screw-speed adjust .......... 1 Woodward...
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Page 51: Figure 6-1E. Parts Illustration For The Ug Dial Governor
Manual 03040 UG Dial Governor Figure 6-1e. Parts Illustration for the UG Dial Governor Woodward... -
Page 52: Chapter 7. Auxiliary Equipment
Auxiliary equipment should be supplied as original equipment on the governor. It Is recommended that the customer contact Woodward if field installations are desired. The following paragraphs provide a brief description of the auxiliary equipment available and list the manuals where detailed information may be obtained. -
Page 53: Figure 7-2. Installing Cover With Bodine Synchronizer Motor
Turn the synchronizer knob to align the clutch with the motor's shaft as the cover is lowered into position. Figure 7-2. Installing Cover with Bodine Synchronizer Motor Figure 7-3 shows the completed UG-8 Dial governor equipped with a Bodine synchronizer motor. Figure 7-3. UG-8 Dial Governor Equipped with Bodine Synchronizer Motor Woodward... -
Page 54: Pm Synchronizer Motor With Housing
The weatherproof housing for the PM synchronizer motor can also be equipped with a shutdown solenoid. There are several supply voltages available for the solenoid. Contact Woodward for additional information. A conduit connection and a pin-type connector are also available. -
Page 55: Low Lube Oil Pressure Shutdown
Magnetic Speed Pickup The magnetic speed pickup monitors governor speed without having to provide an additional drive pad on the engine. Figure 7-7 shows the assembly on a UG governor. For more information, see manual 36052. Figure 7-7. Magnetic Speed Pickup Woodward... -
Page 56: Micro Switches And Wiring Harness
When used to shut off the electric motor, micro switches also protect the synchronizer (speed setting) motor should the operator run the speed adjustment to its limit. The external wiring to the governor is not provided by Woodward and should be wired into the connector for the particular application as required. Woodward... -
Page 57: Chapter 8. Service Options
A Recognized Turbine Retrofitter (RTR) is an independent company that does both steam and gas turbine control retrofits and upgrades globally, and can provide the full line of Woodward systems and components for the retrofits and overhauls, long term service contracts, emergency repairs, etc. -
Page 58: Woodward Factory Servicing Options
Flat Rate Remanufacture: Flat Rate Remanufacture is very similar to the Flat Rate Repair option with the exception that the unit will be returned to you in “like- new” condition and carry with it the full standard Woodward product warranty (Woodward Product and Service Warranty 5-01-1205). This option is applicable to mechanical products only. -
Page 59: Returning Equipment For Repair
To prevent damage to electronic components caused by improper handling, read and observe the precautions in Woodward manual 82715, Guide for Handling and Protection of Electronic Controls, Printed Circuit Boards, and Modules. -
Page 60: Engineering Services
UG Dial Governor Manual 03040 Engineering Services Woodward offers various Engineering Services for our products. For these services, you can contact us by telephone, by email, or through the Woodward website. Technical Support Product Training Field Service Technical Support is available from your equipment system supplier, your local Full- Service Distributor, or from many of Woodward’s worldwide locations, depending... -
Page 61: Technical Assistance
Type of Fuel (gas, gaseous, steam, etc) Rating Application Control/Governor Information Please list all Woodward governors, actuators, and electronic controls in your system: Woodward Part Number and Revision Letter Control Description or Governor Type Serial Number Woodward Part Number and Revision Letter... - Page 62 Email and Website—www.woodward.com Woodward has company-owned plants, subsidiaries, and branches, as well as authorized distributors and other authorized service and sales facilities throughout the world. Complete address / phone / fax / email information for all locations is available on our website.
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