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Woodward PG Dial Governor Operation Manual
Woodward PG Dial Governor Operation Manual

Woodward PG Dial Governor Operation Manual

Back pressure controller

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Product Manual 36623
(Revision A)
Original Instructions
PG Dial Governor
Back Pressure Controller
Operation Manual

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Summary of Contents for Woodward PG Dial Governor

  • Page 1 Product Manual 36623 (Revision A) Original Instructions PG Dial Governor Back Pressure Controller Operation Manual...
  • Page 2: General Precautions

    Revisions—Changes in this publication since the last revision are indicated by a black line alongside the text. Woodward reserves the right to update any portion of this publication at any time. Information provided by Woodward is believed to be correct and reliable. However, no responsibility is assumed by Woodward unless otherwise expressly undertaken.
  • Page 3: Warnings And Notices

    Manual 36623 Back Pressure Controller for PG Dial Governor Warnings and Notices Important Definitions This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
  • Page 4: Electrostatic Discharge Awareness

    Do not touch the components or conductors on a printed circuit board with your hands or with conductive devices. 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 5: General Information

     terminal lever assembly  restoring linkage The PG Dial governor with back pressure control is designed and set to:  position the steam valve at maximum with a minimum pneumatic control signal pressure  position the steam valve at minimum with a maximum pneumatic control...
  • Page 6: Test Procedure

    Back Pressure Controller for PG Dial Governor Manual 36623 The pilot valve plunger (2) controls the flow of oil to and from the area below positioning servo piston (4). If pilot valve plunger (2) is raised to open the control port in pilot valve bushing (10), oil is drained to the governor sump from the bottom of servo piston (4).
  • Page 7 Manual 36623 Back Pressure Controller for PG Dial Governor Figure 1. Schematic of Back Pressure Controller for the PG Dial Governor Woodward...
  • Page 8 Back Pressure Controller for PG Dial Governor Manual 36623 Test Procedure For Pressure Output Power Cylinder or Output Rod with Rod End: With control air pressure at zero and the shutdown nuts clear of the pivot link, run the governor at about 1000 rpm. Check the governor power cylinder output pressure.
  • Page 9 Manual 36623 Back Pressure Controller for PG Dial Governor Figure 2. PG Dial Governor with Back Pressure Controller Woodward...
  • Page 10: Replacement Parts

    When ordering parts, it is necessary to include the following information:  Serial number and part number shown on nameplate 10 µm filter element conforms to AN 6235-4A (not supplied by Woodward). Parts Lists For Figures 3 and 4 Ref. No.
  • Page 11 Manual 36623 Back Pressure Controller for PG Dial Governor Figure 3. Parts for the Back Pressure Controller Figure 4. Parts for the Back Pressure Controller Woodward...
  • Page 12 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.