Woodward Psg Governor Operating and Book Workshop Service Repair Manual PDF Download

Woodward PSG Governor operating and Workshop service Book

BULLETIN 37013A
PSG GOVERNOR
OPERATING AND SERVICE MANUAL
BULLETIN 37013A

Section Title Page
SECTION I/GENERAL INFORMATION AND INSTALLATION
Section Title Page
Parts Cleaning 17
Introduction 2 Parts Check 17
General Information 2 Parts Repair 18
Overspeed 2 Assembly 18
Installation 2 Testing 24
Speed Adjustment 2
Speed Droop 3 SECTION IV/REPLACEABLE PARTS
Initial Operation and Adjustment 3 Introduction 25
Storage 3 Replacement Parts Information 25
Illustrated Parts Breakdown 25
SECTION II/PRINCIPLES OF OPERATION
I ntroduction 5 SECTION V/AUXILIARY EQUIPMENT
Operation 5 Introduction 29
Spring Driven-Oil Damped Ballhead 29
SECTION III/MAINTENANCE Torsion Spring 32
Introduction 8 Pneumatic Speed Setting 32
Troubleshooting 8 Speed Adjusting Motor 40
Speed Droop Adjustment 14 Externally Adjusted Speed Droop 42
Removal of Governor from Engine 15 Internal Return Spring 44
Tools for Disassembly & Assembly 15 Temperature Compensated Needle Valve 49
Disassembly of Governor 15 Fuel Rod 49
LIST OF ILLUSTRATIONS
Figure Title Page Figure Title Page
1-1 External Features of Basic PSG 1 3-16 Buffer System Assembly 20
1-2 Outline Drawing, Basic PSG 4 3-17 Power Piston Assembly 20
2-1 Cutaway Schematic, Basic PSG 6 3-18 Ballhead Installation 20
2-2 Schematic Diagram, PSG with 3-19 Thrust Bearing & Speeder
External Return Spring 7 Spring Parts 20
3-1 Droop Adjustment 14 3-20 Thrust Bearing & Spring Seat Assembly 21
3-2 Assembly Tools 15 3-21 Spring Seat Adjustment 21
3-3 Terminal Shaft Removal 16 3-22 Centering the Pilot Valve Plunger 21
3-4 Speeder Spring Removal 16 3-23 Torquing Lock Nut 21
3-5 Pilot Valve Disassembly 16 3-24 Centering Pilot Valve Plunger 22
3-6 Removal of Ballhead 17 3-25 Speeder Spring Installation 22
3-7 Check Valve Assembly 18 3-26 Terminal Lever & Terminal Shaft
3-8 Honing Idler Gear 18 Parts Layout 22
3-9 Honing Pilot Valve Bushing Gear 19 3-27 Droop Bracket Assembly 22
3-10 Plugs Inserted for CCW Rotation 19 3-28 Setting Zero Droop 22
3-11 Plugs Inserted for CW Rotation 19 3-29 Speed Adjusting Parts Layout 22
3-12 Pilot Valve Bushing Assembly 19 3-30 Speed Adjusting & Floating
3-13 Compensating Bushing Assembly 19 Lever Assembly 23
3-14 Seating Retaining Ring 19 3-31 Bending Spring Wire Pin 23
3-15 Base to Case Assembly 20 3-32 Seal Installation 23

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