STEMME S12

DOCUMENT NUMBER:
L500-912.820 ISSUE JUL 20, 2016
AMENDMENT: 00
DATE: 
CHAPTERPAGE 012
MAINTENANCE MANUAL STEMME S12
3.4.7 Engine Controls and Instrumentation. ............................................................ 3-19
3.4.8 Fire Protection. ........................................................................................... 3-19
3.4.9 Engine Cowlings. ........................................................................................ 3-19
3.4.10 Propeller. ................................................................................................... 3-20
3.4.10.1 Design of Variable Pitch Propeller. ..................................................................3-21
3.4.10.2 Propeller Blades. ..........................................................................................3-21
3.4.10.3 Propeller Blade Angle Control Mechanism. .......................................................3-21
3.4.10.4 Propeller Weight Balance. ............................................................................ 3-24
3.4.10.5 Expansion Element and Control System. ......................................................... 3-25
3.4.10.6 Identication of Propeller System and Assembly. ............................................. 3-26
3.4.11 Power Transmission. .................................................................................... 3-26
3.4.12 Forward Propeller Reduction Gearbox. ........................................................... 3-26
3.4.13 Operation Mechanism of the Propeller Folding System. ..................................... 3-27
3.4.13.1 Nose-cone. ................................................................................................ 3-27
3.4.13.2 Propeller Positioning. ................................................................................... 3-27
3.4.13.3 Propeller Brake. .......................................................................................... 3-28
3.4.14 FLUIDS. ..................................................................................................... 3-28
3.4.14.1 Fuel. ......................................................................................................... 3-28
3.4.14.2 Coolant Fluid. .............................................................................................3-30
3.4.14.3 Lubricants. ................................................................................................ 3-31
3.5 Landing Gear.............................................................................................. 3-33
3.5.1 Main Landing Gear. ..................................................................................... 3-33
3.5.2 Tail Wheel. ................................................................................................. 3-34
3.6 Flight Control Instruments, Pitot Static System. ............................................... 3-35
3.7 Electrical System. ........................................................................................ 3-37
3.7.1 General System Architecture. ........................................................................ 3-37
3.7.2 DC Generation (ATA 24-30-00). ..................................................................... 3-39
3.7.2.1 Main System DC Power Generation. ............................................................... 3-39
3.7.2.2 Engine System DC Power Generation. .............................................................3-40
3.7.2.3 Over Voltage Protection. .............................................................................. 3-41
3.7.3 DC Indication (ATA 24-37-00)........................................................................ 3-41
3.7.3.1 Description. ............................................................................................... 3-41
3.7.4 Parts Specication. ..................................................................................... 3-41
3.7.5 Operation. ................................................................................................. 3-41
3.7.6 DC Power Distribution System (ATA 24-60-00). ................................................ 3-42
3.7.6.1 Wire Specications. ..................................................................................... 3-42
3.7.6.2 Design of Electrical Connections. .................................................................. 3-42
3.7.6.3 Protection Devices. ..................................................................................... 3-43
3.7.6.4 Fuse and CB Specications: Main System. .......................................................3-44
3.7.6.5 Fuse Specications: Engine System. ............................................................... 3-45
3.7.7 Switching Devices. ...................................................................................... 3-45
3.7.7.1 Manual Switches. ........................................................................................3-46
3.7.7.2 Electromechanical Relays. ............................................................................3-46