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3161 Air Pressure Fuel Limiter

Manual 03108

14

Woodward

Figure 4-1. Exploded View of 3161 Air Pressure Fuel Limiter

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Summary of Contents for 3161 Governor

Page 1: ...Product Manual 03108 Revision B Original Instructions 3161 Governor Air Pressure Fuel Limiter Operation Manual ...

Page 2: ...r updated since this copy was produced To verify that you have the latest revision be sure to check the publications page on the Woodward website www woodward com publications The current revision and distribution restriction of all publications are shown in manual 26311 The latest version of most publications is available on the publications page If your publication is not there please contact yo...

Page 3: ... Support Options 15 Product Service Options 15 Returning Equipment for Repair 16 Replacement Parts 16 Engineering Services 17 Contacting Woodward s Support Organization 17 Technical Assistance 18 Illustrations and Tables Figure 1 1 Outline Drawing of 3161 Governor with Air Pressure Fuel Limiter 2 Figure 2 1 Schematic of Air Pressure Fuel Limiter on the 3161 Governor 4 Figure 3 1 Disassembly of Bel...

Page 4: ...3161 Air Pressure Fuel Limiter Manual 03108 ii Woodward ...

Page 5: ...ay or damage to the prime mover with possible personal injury loss of life or property damage The overspeed shutdown device must be totally independent of the prime mover control system An overtemperature or overpressure shutdown device may also be needed for safety as appropriate References 03101 3161 Governor 03102 3161 Governor product specification 03103 3161 Governor Manual Shutdown Device 03...

Page 6: ...3161 Air Pressure Fuel Limiter Manual 03108 2 Woodward Figure 1 1 Outline Drawing of 3161 Governor with Air Pressure Fuel Limiter ...

Page 7: ...thus limiting fuel If additional load is applied and pressure from the air manifold is increased further the rolling diaphragm assembly again moves up raising the fuel limit plunger Pressure on the limiter piston drops due to the opening of the port and the limiter piston moves up until the port is closed again As described limiter piston position is proportional to air manifold pressure The limit...

Page 8: ...3161 Air Pressure Fuel Limiter Manual 03108 4 Woodward Figure 2 1 Schematic of Air Pressure Fuel Limiter on the 3161 Governor ...

Page 9: ... and repaired it will require calibration before being returned to service on the prime mover Refer to the Calibration Procedures at the end of this chapter to calibrate the Air Pressure Fuel Limiter Refer to manual 03101 to calibrate the governor Be prepared to make an emergency shutdown when starting the engine turbine or other type of prime mover to protect against runaway or overspeed with pos...

Page 10: ...3161 Air Pressure Fuel Limiter Manual 03108 6 Woodward ...

Page 11: ...an Wear approved eye protection to prevent possible eye injury during disassembly cleaning and assembly of parts Disassemble the device according to the following instructions Reference numbers in parentheses are assigned to each part in the exploded view Figure 4 1 1 Remove three screws 1 from limiter cover 5 Carefully separate cover 5 from bellofram spacer 25 2 Remove upper spring seat 6 and lim...

Page 12: ...th clean lint free wipes or blow dry with clean dry air Handle parts that have been machined to a close tolerance carefully to prevent damage caused by contact with other parts or objects Part Inspection Refer to Figure 4 1 Springs 7 14 11 Inspect springs for rust and corrosion and replace if any damage is found Limiter Piston 12 Inspect limiter piston 12 for nicks and scratches on sharp corners F...

Page 13: ... screws 22 6 Turn governor cover 17 with bottom side up Install limiter piston 12 output rod 13 limiter return spring 14 and lower spring seat 15 Secure these parts in place with retaining ring 16 7 Turn governor cover 17 top side up Install plunger return spring 11 and fuel limit plunger 10 in limiter piston 12 6 Place gasket 9 on the cover Install the bellofram assembly 23 through 29 on the bell...

Page 14: ... the speed setting shaft rotated to the high speed position do the following a Run the test stand and allow the governor to reach the temperature of 54 to 66 C 130 to 150 F b Be sure the governor is functioning correctly and calibrated to governor specifications c Unhook feedback linkage to the test stand d Adjust the test stand to run the governor drive shaft at 500 rpm less than the designated h...

Page 15: ...stment screw clockwise and repeat steps 4 and 5 b It the limiter arms at more than specified maximum limit turn the arming adjustment screw counterclockwise and repeat steps 4 and 5 6 Reduce limiter air pressure to 0 With the speed setting shaft at the maximum speed setting run the governor at 500 rpm less than high speed Turn the fuel limit level adjustment screw Figure 3 3 to set the output shaf...

Page 16: ...move the limiter cam range adjustment towards the back of the governor Retighten the screw INSTALL THE GOVERNOR COVER and repeat steps 6 and 7 until the position of the output shaft at maximum pressure is within tolerance 8 Raise and lower the control air slowly between the specified minimum and maximum pressures Output shaft position should respond to small changes and seek positions between mini...

Page 17: ...03108 6 Upper spring seat 1 03108 7 Limiter spring 1 03108 8 Bellofram guide 1 03108 9 Gasket 1 03108 10 Fuel limit plunger 1 03108 11 Plunger return spring 1 03108 12 Limiter piston 1 03108 13 Output rod 1 03108 14 Limiter return spring 1 03108 15 Lower spring seat 1 03108 16 Retaining ring 1 03108 17 Governor cover 1 03108 18 Lower gasket 1 03108 19 Orifice plate 1 03108 20 Upper gasket 1 03108 ...

Page 18: ...3161 Air Pressure Fuel Limiter Manual 03108 14 Woodward Figure 4 1 Exploded View of 3161 Air Pressure Fuel Limiter ...

Page 19: ...ould also be handled through the OEM or Packager Please review your equipment system documentation for details Woodward Business Partner Support Woodward works with and supports a global network of independent business partners whose mission is to serve the users of Woodward controls as described here A Full Service Distributor has the primary responsibility for sales service system integration so...

Page 20: ...This option is applicable to mechanical products only Returning Equipment for Repair If a control or any part of an electronic control is to be returned for repair please contact your Full Service Distributor in advance to obtain Return Authorization and shipping instructions When shipping the item s attach a tag with the following information return number name and location where the control is i...

Page 21: ...formation on these services please contact one of the Full Service Distributors listed at www woodward com directory Contacting Woodward s Support Organization For the name of your nearest Woodward Full Service Distributor or service facility please consult our worldwide directory published at www woodward com directory You can also contact the Woodward Customer Service Department at one of the fo...

Page 22: ...s Type of Fuel gas gaseous diesel dual fuel etc Power Output Rating Application power generation marine etc Control Governor Information Control Governor 1 Woodward Part Number Rev Letter Control Description or Governor Type Serial Number Control Governor 2 Woodward Part Number Rev Letter Control Description or Governor Type Serial Number Control Governor 3 Woodward Part Number Rev Letter Control ...

Page 23: ...Manual 03108 3161 Air Pressure Fuel Limiter Woodward 19 ...

Page 24: ...East Drake Road Fort Collins CO 80525 USA Phone 1 970 482 5811 Fax 1 970 498 3058 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 2012 9 Colorado ...

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