
Manual 35076 LESV II
Woodward 1
Contents
WARNINGS AND NOTICES ............................................................................................................... 4
ELECTROSTATIC DISCHARGE AWARENESS...................................................................................... 5
REGULATORY COMPLIANCE ............................................................................................................ 6
CHAPTER 1. GENERAL INFORMATION .............................................................................................. 9
Introduction ................................................................................................................................................... 9
CHAPTER 2. DESCRIPTION ............................................................................................................ 23
Actuator: Woodward LELA (Large Electrical Linear Actuator).................................................................... 23
Brushless DC Motor .................................................................................................................................... 23
Resolver Position Feedback Sensors ......................................................................................................... 23
Soft Stop Spring .......................................................................................................................................... 24
Valve Portion: SonicFlo............................................................................................................................... 24
LESV II Pressure Ratio Operational Limitations ......................................................................................... 24
CHAPTER 3. INSTALLATION ........................................................................................................... 25
General........................................................................................................................................................ 25
Required Clearance for Lubrication Kit Syringes and Gun/Needle............................................................. 26
Lifting Procedures ....................................................................................................................................... 27
Piping Installation ........................................................................................................................................ 30
Fuel Overboard Vent Connection ............................................................................................................... 32
Valve Characteristic Data............................................................................................................................ 32
Calibration ................................................................................................................................................... 32
Valve/Actuator Configuration Settings ........................................................................................................ 33
Electrical Connections................................................................................................................................. 35
SIL2 Flow Sensor - Electrical Wiring........................................................................................................... 43
Installation and Application Pre-Start Checks............................................................................................. 44
CHAPTER 4. MAINTENANCE AND HARDWARE REPLACEMENT......................................................... 46
Maintenance................................................................................................................................................ 46
Hardware Replacement .............................................................................................................................. 46
SIL2 Flow Sensor Replacement ................................................................................................................. 46
Fuel Overboard Vent Port ........................................................................................................................... 47
CHAPTER 5. TROUBLESHOOTING .................................................................................................. 48
CHAPTER 6. SAFETY MANAGEMENT –SAFE POSITION FUEL SHUTOFF FUNCTION ......................... 50
Product Variations Certified ........................................................................................................................ 50
Covered LESV Versions ............................................................................................................................. 50
SFF for the LESV – Over Speed SIF (Safety Instrumented Function) ....................................................... 50
Response Time Data .................................................................................................................................. 51
Limitations ................................................................................................................................................... 51
Management of Functional Safety .............................................................................................................. 51
Restrictions ................................................................................................................................................. 51
Competence of Personnel........................................................................................................................... 51
Operation and Maintenance Practice.......................................................................................................... 51
Installation and Site Acceptance Testing .................................................................................................... 51
Functional Testing after Initial Installation................................................................................................... 52
Functional Testing after Changes ............................................................................................................... 52
Proof Test (Functional Test)........................................................................................................................ 52
Suggested Proof Test ................................................................................................................................. 52
Proof Test Coverage ................................................................................................................................... 52
CHAPTER 7. SAFETY MANAGEMENT –POSITION FEEDBACK LIGHT-OFF FUNCTION FLOW SENSOR 53
Product Variations Certified ........................................................................................................................ 53
Covered LESV Versions ............................................................................................................................. 53