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SAFIR 5L
OPERATION AND ATTENDANCE MANUAL
PG 01-31
LIST OF CONTENTS
LIST OF CHANGES AND CORRECTIONS.................................................................................................................... 3
LIST OF CONTENTS........................................................................................................................................................ 4
LIST OF ILLUSTRATIONS.............................................................................................................................................. 5
INTRODUCTION .............................................................................................................................................................. 6
1.BASIC TECHNICAL DATA .................................................................................................................................... 7
Auxiliary Power Unit......................................................................................................................................... 7
Fuel System ....................................................................................................................................................... 8
Oil System ......................................................................................................................................................... 9
Air System ....................................................................................................................................................... 10
Control and Regulation System ....................................................................................................................... 11
Actuating System............................................................................................................................................. 12
2.OPERATION INSTRUCTIONS ............................................................................................................................. 21
Pre-Start Preparation........................................................................................................................................ 21
APU Actuation................................................................................................................................................. 21
Engine Actuation ............................................................................................................................................. 21
APU Cold Turn................................................................................................................................................ 21
APU Switch off................................................................................................................................................ 21
Monitoring and Signaling Equipment.............................................................................................................. 21
3.OPERATIVE LIMITS ............................................................................................................................................. 22
Actuation Repeatability ................................................................................................................................... 22
Low Temperature Operation............................................................................................................................ 22
Power Supplies ................................................................................................................................................ 22
Compressor Protection..................................................................................................................................... 22
Control System Protection ............................................................................................................................... 22
Air Intake Limits (in 100 % Mode) ................................................................................................................ 22
Permissible Overload with APU Switched off ............................................................................................... 23
Fluids in Use.................................................................................................................................................... 23
APU Actuation in flight................................................................................................................................... 24
Other Limits..................................................................................................................................................... 24
4.SERVICE INSTRUCTIONS ................................................................................................................................... 25
General Survey ................................................................................................................................................ 25
Assembly and Operation Instructions.............................................................................................................. 25
Instructions for Replacement of APU In-Operation ........................................................................................ 27
Activation ........................................................................................................................................................ 27
Definitions of Periodic Work........................................................................................................................... 28
Time-limits of Activity – Technical Resource................................................................................................. 30
Scope of Periodic Work................................................................................................................................... 30
Checking Techniques....................................................................................................................................... 33
5.DEWAXING AND PRESERVATION IN OPERATION .................................................................................... 51
Dewaxing – on Delivery from the Manufacturer (replacement parts, after repair, etc.) .................................. 51
Dewaxing after 3 Months Preservation, Performed In-Operation. .................................................................. 51
First Actuation of APU.................................................................................................................................... 51
Preservation Valid for 30 Days........................................................................................................................ 51
Internal Preservation Valid for 3 Months +18-9 Days ........................................................................................ 51
Preservation Valid for 1 Year .......................................................................................................................... 52
Preservation and Packing for Shipping Devices to the Manufacturer............................................................. 52
6.DEFECTS AND TROUBLESHOOTING.............................................................................................................. 53
General Survey ................................................................................................................................................ 53
Explanatory Notes to the Schematic Diagrams................................................................................................ 54
List of Algorithms for APU Function Monitoring and Troubleshooting......................................................... 55
