LINE & BASE MAINTENANCE
TRAINING
(Part 1)
By Ccoyure Tito
CONTENIDO
1. Power plant.
2. Engine Construction.
3. Bearings and Seals.
4. Borescoping.
5. Performance.
6. Fuel System.
7. Ignition System.
8. Oil System.
9. Antisurge Bleed System.
10. Anti-icing System.
11. Indicating System.
12. Ground operations.
13. Troubleshooting.
POWER PLANT.- Nacelle1
Typical Nacelle Configuration 1
POWER PLANT.- Nacelle
Typical Nacelle Configuration 2
Rear View Nacelle Configuration
History of JT8D Engine
JT8D Turbofan Engine Cutaway View
Power Plant Review Questions
Designation of JT8D Engine
Definition of Turbofan Engine
REQUERIMIENTOS GENERALES
• Las aeronaves requieren empuje para producir suficiente velocidad para que las alas proporcionensustentación y superen el peso de la aeronave.
• Esta fuerza propulsiva proviene de un tipo adecuado de motor térmico de aviación.
ENGINE CONSTRUCTION2
Engine Dimensions
Directional References
Directional References
Major JT8D Design Features
Engine Stations and Flanges
Bearing Locations
Engine Left Side View
Engine Right Side View
Center Engine (Left Side)
Center Engine (Right Side)
Build Groups and Sections
Build Groups and Sections Locations
Front Accessory Drive Group
Fan Inlet Group
(to FCU)
(to PRBC)
Fan Inlet Group
(to EPR)
Front Compressor Group
Front Compressor Group
Compressor Intermediate Group
Compressor Intermediate Group
Rear Compressor Group
Rear Compressor Group
Diffuser Outer Fan Duct Group
Diffuser Outer Fan Duct Group
Fan Discharge Section
Fan Discharge Section
Combustion and Nº 5 Bearing Section
Combustion and Nº 5 Bearing Section
Combustion Chambers
Turbine Nozzle Group
Turbine Nozzle Group
Combustion Chamber Outlet
Turbine Nozzle Group
Turbine Nozzle Group - Vanes
Rear Compressor Drive Turbine Group
Rear Compressor Drive Turbine Group
Front Compressor Drive Turbine Group
Front Compressor Drive Turbine Group
Exhaust Case Group
Exhaust Case Group
Accessory Gearbox Group
Accessory Gearbox Front
Accessory Gearbox Group
Accessory Gearbox Rear
“S” Duct for Engine Nº 2
Reviews Questions
Reviews Questions
MAIN BEARINGS
BEARING & SEALS3
Typical Antifriction Bearings
Bearing Locations
Main Bearing Seals
Main Bearing Seals
Typical Carbon Seals
Typical Carbon and Labyrinth Seals
Typical Borescopes
Borescope Access Ports
Flat Rating Concept
Compressor Performance
Compressor Map Development
Compressor Performance
Rear Compressor Map
Compressor Performance
Front Compressor Map
Troubleshooting Chart
Typical Operating Performance Data
LINE & BASE MAINTENANCE
TRAININGFinish Part 1