TASK 72-00-21-870-001- 0
FAN AND BOOSTER MODULE - DESCRIPTION AND OPERATION
1. General.
The fan and booster module consists of a single-stage fan rotor and a 3-stage axial booster,
cantilever-mounted at the rear of the fan disk. The fan and booster module consists of the
following major parts:
(1) Spinner front and rear cones.
(2) Fan disk.
(3) Fan blades.
(4) Booster rotor.
(5) Booster vane assemblies.
TASK 72-00-21-020-001- 0
FAN AND BOOSTER MODULE – REMOVAL
A. Tools and Equipment.
(1) Special Tools
P/N
856A1015
P/N
Sling - Frames
(sling)
P/N
856A1130
Stand - Engine
Maintenance
P/N
Tool Set Jackscrews
P/N
856A1312
Handling Supports Engine Maintenance
856A1122
856A1157
Fixture, Lift - Variable
CG General Purpose,
Heavy
P/N
856A2501
Wrench, Ratchet,
Dual Purpose - VBV
Manual Control
P/N
856A2573
P/N
Adapter, Puller - LPT
Shaft Plug
P/N
856A2625
Puller - Rear Cone
P/N
Stand, Storage Fan and Booster
Module
P/N
856A2631
856A2635
Tool, Locking Fan Disk
856A2627
Beam, Lifting - LPT
Major Module
P/N
Stand, Storage Fan Blades
P/N
856A2601
856A2632
Puller
P/N
856A2644
Tool, Holding - Fan Disk
P/N
856A2663
P/N
Adapter, Puller Splitter Fairing
P/N
856A3501
Adapter, Puller - Fan
Blade Spacers
P/N
Fixture,
Alignment/Guide
Booster/LPT Shaft
P/N
856A3503
856A3508
Sleeve, Centering
856A3502
Fixture, Guide and
Countertorque
P/N
Fixture,
Removal/Installation
and Handling Booster Rotor/Stator
Assembly
P/N
856A3500
856A3504
Fixture, Pusher/Puller Module 1 and Major
Module 3
P/N
856A3513
Beam, Residual Torque
P/N
856A3514
P/N
Adapter, Residual
Torque
P/N
856A3516
Extension Beam Variable CG Lift Fixture
P/N
Sleeve, Protective Fan Disk Balance
Weight
P/N
856A3518
856A3589
Floor, Protective - Fan
Inlet Case
856A3517
Adapter, Countertorque
P/N
Stand, Storage - Fan
Blades
P/N
856A3515
856A3524
Tool Set, Drive Adapter
- Booster and LPT
P/N
856A3599
Protective Ring
TASK 72-00-21-420-001- 0
FAN AND BOOSTER MODULE - INSTALLATION 001
A. Tools and Equipment.
(1) Special Tools
P/N
856A1015
P/N
Sling - Frames
(sling)
P/N
856A1157
Stand - Engine
Maintenance
P/N
Fixture, Lift Variable CG
General
Purpose, Heavy
P/N
856A2625
Stand, Storage Fan and Booster
Module
856A1122
856A1312
Handling Supports
- Engine
Maintenance
P/N
856A2627
Beam, Lifting - LPT
Major Module
P/N
856A2631
P/N
Stand, Storage Fan Blades
P/N
856A2644
Tool, Locking - Fan Disk
P/N
Tool, Holding Fan Disk
P/N
856A3501
856A3503
Fixture,
Removal/Installation
and Handling Booster Rotor/Stator
Assembly
856A3409
Pins, Guide - Spinner
Rear Cone
P/N
Fixture,
Alignment/Guide
Booster/LPT Shaft
P/N
856A2635
856A3502
Fixture, Guide and
Countertorque
P/N
856A3508
Sleeve, Centering
P/N
856A3515
P/N
Extension Beam Variable CG Lift
Fixture
P/N
856A3518
Stand, Storage - Fan
Blades
P/N
856A3599
Protective Ring
856A3516
Sleeve, Protective - Fan
Disk Balance Weight
P/N
856A3589
Floor, Protective - Fan
Inlet Case
TASK 72-00-22-870-001- 0
NO. 1 AND NO. 2 BEARING SUPPORT MODULE - DESCRIPTION AND
OPERATION
1. General.
The No. 1 and No. 2 bearing support module supports the fan and booster rotors. It is bolted to
the fan frame front face.The bearing support consists of the following major parts:
(1) No. 1 bearing support.
(2) No. 1 ball bearing.
(3) No. 2 bearing support.
(4) No. 2 roller bearing.
(5) Oil manifold assembly.
(6) External piping.
(7) Fan shaf.
TASK 72-00-22-020-001- 0
NO. 1 AND NO. 2 BEARING SUPPORT MODULE - REMOVAL
A. Tools and Equipment.
(1) Special Tools
P/N
856A1015
P/N
Sling - Frames
P/N
856A1157
856A1130
Tool Set - Jackscrew
P/N
856A1312
Fixture, Lift - Variable
CG General Purpose,
Heavy
P/N
856A2571
Handling Supports Engine Maintenance
P/N
Pins, Guide - No. 1
and No. 2 Bearing
Support Module
Installation
P/N
856A2626
Sectors, Centering Forward LPT Shaft
P/N
Stand, Storage Module 2
P/N
856A3502
Fixture, Guide and
Countertorque
856A2616
856A3501
Fixture,
Alignment/Guide
Booster/LPT Shaft
P/N
856A3506
Wrench, Torque/Loosen
- LPT Coupling Nut
P/N
856A3507
P/N
Support, Forward
P/N
856A3510
Sleeve, Centering
P/N
Adapter, Lift and Turn
- Module 2
P/N
856A3513
856A3515
Extension Beam Variable CG Lift
Fixture
856A3512
Disk, Dummy Fan
P/N
Beam, Residual
Torque
P/N
856A3508
856A3514
Adapter, Residual
Torque
P/N
856A3589
Floor, Protective - Fan
Inlet Case
TASK 72-00-22-420-001- 0
NO. 1 AND NO. 2 BEARING SUPPORT MODULE - INSTALLATION
A. Tools and Equipment.
(1) Special Tools
P/N
856A1015
Sling - Frames
P/N
856A1122
Stand - Engine
Maintenance
P/N
856A1157
P/N
Fixture, Lift - Variable
CG General Purpose,
Heavy
P/N
856A2571
Handling Supports Engine Maintenance
P/N
Pins, Guide - No. 1
and No. 2 Bearing
Support Module
Installation
P/N
856A2626
856A3502
Fixture, Guide and
Countertorque
856A2616
Sectors, Centering Forward LPT Shaft
P/N
Stand, Storage Module 2
P/N
856A1312
856A3501
Fixture,
Alignment/Guide
Booster/LPT Shaft
P/N
856A3506
Wrench, Torque/Loosen
- LPT Coupling Nut
P/N
856A3507
P/N
Support, Forward
P/N
856A3510
Sleeve, Centering
P/N
Adapter, Lift and Turn
- Module 2
P/N
856A3513
856A3515
Extension Beam Variable CG Lift
Fixture
856A3512
Disk, Dummy Fan
P/N
Beam, Residual
Torque
P/N
856A3508
856A3514
Adapter, Residual
Torque
P/N
856A3589
Floor, Protective - Fan
Inlet Case
TASK 72-00-23-870-001- 0
FAN FRAME MODULE - DESCRIPTION AND OPERATION
1. General.
The fan frame module provides front handling mounts and is the main forward support for
mounting the engine to the aircraf. Its purpose is to support the fan, booster, and high pressure
compressor (HPC) rotors, and to provide ducting for primary and secondary airflows.
The fan frame module consists of the following major assemblies:
(1) Fan frame.
(2) Fan Outlet Guide Vane (OGV) assembly.
TASK 72-00-23-020-001- 0
FAN FRAME MODULE – REMOVAL
A. Tools and Equipment.
(1) Special Tools
P/N
856A1122
Stand – Engine
Maintenance
P/N
856A1312
Support - Engine
Handling
TASK 72-00-23-420-001- 0
FAN FRAME MODULE – INSTALLATION
A. Tools and Equipment.
(1) Special Tools
P/N
856A3111
Dolly, Trunnion - Fan
Frame Module
TASK 72-00-31-870-001- 0
COMPRESSOR ROTOR ASSEMBLY - DESCRIPTION AND OPERATION
1. General.
The compressor rotor (C/R) is a 9-stage, high-speed, unitized spool-disk structure. The rotor
consists of 5 major parts: the shaf, stages 1-2 spool, stage 3 disk, stages 4-9 spool, and C/R rear
rotating (compressor discharge pressure [CDP]) air seal. The shaf, disk, and spools are joined at
a single bolted joint to form a smooth rigid unit. Interfering rabbeted diameters are used for
proper positioning of parts and for rotor stability.
TASK 72-00-31-020-001- 0
COMPRESSOR ROTOR ASSEMBLY - REMOVAL
A. Tools and Equipment.
(1) Special Tools : None.
TASK 72-00-31-420-001- 0
COMPRESSOR ROTOR ASSEMBLY – INSTALLATION
A. Tools and Equipment.
(1) Special Tools : None.
TASK 72-00-32-870-001- 0
COMPRESSOR FRONT STATOR ASSEMBLY - DESCRIPTION AND
OPERATION
1. General.
This page block gives data for the (CFM56-3) compressor front stator assembly.
Configuration One
The compressor front stator consists of the front casing halves, the extension casing halves, the
inlet guide vanes (IGV), and the first 5 stages of stator vanes.
Configuration 2.
The compressor front stator consists of the front casing halves, the inlet guide vanes (IGV), and
the first 5 stages of stator vanes.
TASK 72-00-32-020-001- 0
COMPRESSOR FRONT STATOR ASSEMBLY - REMOVAL
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1122
Stand – Engine
Maintenance
P/N
856A1169
P/N
Fixture, Lift - HPC
Stator Fwd Case Assy
856A1421
Fixture, Lift - HP
Compressor Case
Front Stator Assembly
TASK 72-00-32-020-801- 0
COMPRESSOR FRONT STATOR ASSEMBLY - LOWER FORWARD
COMPRESSOR CASE REMOVAL
A. Tools and Equipment.
(1) Special Tools :
P/N
TASK 72-00-32-420-001- 0
856A1022
P/N
Wrench Set, Spanner Air Tube Nuts
856A1122
Stand – Engine
Maintenance
COMPRESSOR FRONT STATOR ASSEMBLY – INSTALLATION
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1022
P/N
856A1084
Wrench Set, Spanner Air Tube Nuts
P/N
856A1115
Cart, Stator Actuator
P/N
Cart, Nitrogen - Fuel
Manifold Press Check
P/N
856A1266
Fixture, Lift - HPC
Stator Fwd Case Assy
P/N
Pins, Alignment Compressor Cases
P/N
9400M83
Hydraulic Lube
System, Adapter Kit
856A1169
856A1421
Fixture, Lift - HP
Compressor Case Front
Stator Assembly
P/N
9465M11
Pump, Hand-Hydraulic
Portable
TASK 72-00-32-420-002- 0
COMPRESSOR FRONT STATOR ASSEMBLY - INSTALLATION 002 INSTALLATION OF THE HIGH PRESSURE COMPRESSOR LOWER FRONT
STATOR CASE
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1122
Stand – Engine
Maintenance
856A1266
P/N
PIN, ALIGNMENT COMPRESSOR CASES
TASK 72-00-33-870-001- 0
COMPRESSOR REAR STATOR ASSEMBLY - DESCRIPTION AND
OPERATION
1. General.
The Configuration One compressor rear stator is a bolted quadrant design consisting of 4 casing
quarters,liners, 3 stages of fixed vane segments and vane shrouds. The rear stator assembly is
located inside of the front stator assembly extension and is cantilever mounted to the rear stator
support. The rear stator support outer flange is mounted between the compressor front stator
extension and the combustion case.
The Configuration Two compressor rear stator consists of the rear casing halves, 3 stages of fixed
vanes and vane shrouds. The rear stator assembly is located inside of the front stator assembly
extension and is cantilever mounted to the rear stator support. The rear stator support outer
flange is mounted between the compressor front stator extension and the combustion case.
TASK 72-00-33-020-001- 0
COMPRESSOR REAR STATOR ASSEMBLY - REMOVAL
A. Tools and Equipment.
(1) Special Tools : None.
TASK 72-00-33-020-801- 0
COMPRESSOR REAR STATOR ASSEMBLY - REMOVAL 002 - LOWER REAR
COMPRESSOR CASE REMOVAL
A. Tools and Equipment.
(1) Special Tools : None.
TASK 72-00-33-420-001- 0
COMPRESSOR REAR STATOR ASSEMBLY - INSTALLATION
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1006
P/N
Wrench, Torque
Adapter - Compressor
Stator Nuts
856A1266
Pins, Alignment Compressor Cases
TASK 72-00-33-400-002- 0
COMPRESSOR REAR STATOR ASSEMBLY - INSTALLATION 002 - LOWER
REAR COMPRESSOR CASE INSTALLATION
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1006
P/N
856A1266
Wrench, Torque
Adapter - Compressor
Stator Nuts
Pins, Alignment Compressor Cases
TASK 72-00-41-870-001- 0
COMBUSTION CASE ASSEMBLY - DESCRIPTION AND OPERATION
1.
General.
This page block gives data for the (ENGINE MODEL) combustion case is a fabricated structural weldment
located between the high pressure compressor (HPC) and the low pressure turbine (LPT). It provides the
structural interface, transmits the engine axial load, and provides gas flow path between the compressor
and LPT. The case incorporates the compressor outlet guide vanes (OGV) and a diffuser for the reduction
of combustion chamber sensitivity to the compressor air velocity profile.
TASK 72-00-41-020-001- 0
COMBUSTION ASSEMBLY - REMOVAL
A. Tools and Equipment.
(1) Special Tools : None.
TASK 72-00-41-420-001- 0
COMBUSTION ASSEMBLY - INSTALLATION
A. Tools and Equipment.
(1) Special Tools : None.
TASK 72-00-42-870-001- 0
COMBUSTION CHAMBER MODULE - DESCRIPTION AND OPERATION
1.
General.
This page block gives data for the (ENGINE MODEL) combustion chamber is a short, annular structure. The
design of the combustion chamber, along with the swirl nozzles and high pressure, high temperature air
produces a more complete fuel-air mixture to provide a uniform combustion pattern and low thermal
stresses. The combustion chamber, contained in the combustion case, consists of outer and inner cowls,
20 primary swirl nozzles, dome, and outer and inner liners. The inner liner and inner cowl are bolted to
the dome at a common joint. The outer liner and outer cowl have 5 configurations. The original
configuration has the outer liner and cowl welded to the dome. Later configurations have the outer liner
and cowl bolted to the dome at a common joint.
TASK 72-00-42-020-001- 0
COMBUSTION CHAMBER MODULE - REMOVAL
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1070
P/N
Fixture, Removal Spline Bolt
P/N
856A1097
Screw Set, Holding Nut Shield Comb Case
P/N
856A1130
Tool Set - Jackscrews
TASK 72-00-42-420-001- 0
COMBUSTION CHAMBER MODULE – INSTALLATION
A. Tools and Equipment.
(1) Special Tools :
856A1093
Fixture, Lift Combustion Chamber
and HPT Nozzle Inner
Support
P/N
856A1102
Adapter, Horizontal Lift
- Fixture
P/N
856A1070
P/N
Fixture, Removal Spline Bolt
P/N
856A1102
Adapter, Horizontal Lift
- Fixture
P/N
856A1293
Retainer Set, Nut
Assembly - Combustor
Inner Liner
856A1093
Fixture, Lift Combustion Chamber
and HPT Nozzle Inner
Support
P/N
856A1130
Tool Set - Jackscrews
P/N
856A1295
Fixture, Align - CDP Bolt
Erosion Shield
TASK 72-00-51-870-001- 0
HIGH PRESSURE TURBINE NOZZLE MODULE - DESCRIPTION AND
OPERATION
1. General.
This page block gives data for the (ENGINE MODEL) high pressure turbine (HPT) nozzle module is
a single-stage air cooled assembly that mounts in the combustion case and directs the gas flow
from the combustion chamber onto the blades of the HPT rotor at the optimum angle. The
major parts of the nozzle are the 23 nozzle segments, outer support, and inner support. The af
support and seal assembly and the af stator seals, while not integral components of the HPT
nozzle module are included since they attach to the HPT stator parts.
TASK 72-00-51-020-001- 0
HIGH PRESSURE TURBINE NOZZLE MODULE – REMOVAL
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1099
Fixture,
Install/Removal - HPT
Aft Outer Air Seal
P/N
856A1103
Fixture, Lift - HPT
Nozzle Assembly
P/N
P/N
Adapter, Horizontal Lift
- Fixture
P/N
Retainer Set, Nut
Assembly - Combustor
Inner Liner
TASK 72-00-51-420-001- 0
HIGH PRESSURE TURBINE NOZZLE MODULE - INSTALLATION
(1) Special Tools :
856A1130
Tool Set - Jackscrews
856A1293
A. Tools and Equipment.
856A1102
P/N
856A1099
Fixture,
Install/Removal - HPT
Aft Outer Air Seal
P/N
P/N
856A1102
Adapter, Horizontal Lift
- Fixture
856A1103
Fixture, Lift - HPT
Nozzle Assembly
TASK 72-00-52-870-001- 0
HIGH PRESSURE TURBINE ROTOR MODULE - DESCRIPTION AND
OPERATION
1. General.
This page block gives data for the high pressure turbine (HPT) rotor is a single-stage, air-cooled,
high efficiency turbine. Structurally the rotor consists of the front shaf, the front rotating air
seal, the disk, and the rear shaf. The HPT rotor drives the compressor rotor and is directly
connected to it by a bolted flange to form what is essentially a single core rotor. The rotor is
internally cooled by low pressure compressor (booster) discharge air. It has interference
rabbeted flanges for rigidity and stability. The 4 main structural parts are made of high strength
nickel alloys.
TASK 72-00-52-020-001- 0
HIGH PRESSURE TURBINE ROTOR MODULE - REMOVAL
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1042
Wrench, Torque - No. 4
Bearing Retainer
P/N
856A1117
P/N
Wrench - HPTR to C/R
Nuts
P/N
Fixture, Lift - HPTR
Horizontal
P/N
856A1125
Fixture, Lift - Variable
CG Rotor to Frames,
Horizontal CG
P/N
856A1136
856A1089
856A1122
Stand - Engine
Maintenance
P/N
856A1130
Tool Set - Jackscrews
P/N
856A1199
Adapter, No. 4 Bearing
CTR Torque Wrench to
Combustion Case
P/N
856A1216
Retainer, Bolt - HPC to
CDP Seal to HPT
P/N
Puller - No. 4 Bearing
Outer Race, Oil Seal and
Air Duct
P/N
856A1394
Fixture, Lift - CG
Adjustable
P/N
Support - Engine
Handling
P/N
856A1419
Truck, HPT Horizontal
856A2004
Tool, Assembly - Install/
Remove HPTR to
Compressor Rotor Nuts
TASK 72-00-52-420-001- 0
HIGH PRESSURE TURBINE ROTOR MODULE - INSTALLATION
A. Tools and Equipment.
856A1312
(1) Special Tools :
P/N
856A1001
Wrench, Keyed Torque Multiplier
P/N
856A1062
Fixture, Chilling - HPTR
Forward Flange
Horizontal
P/N
856A1389
P/N
Wrench, Torque - No. 4
Bearing Retainer
P/N
856A1125
Fixture, Lift - Variable
CG Rotor to Frames,
Horizontal CG
856A1089
Wrench - HPTR to C/R
Nuts
P/N
Fixture, Install - No. 4
BRG Outer Race
P/N
856A1042
856A1117
Fixture, Lift - HPTR
Horizontal
P/N
856A1136
Adapter, No. 4 Bearing
CTR Torque Wrench to
Combustion Case
P/N
856A1199
P/N
Retainer, Bolt - HPC to
CDP Seal to HPT
P/N
856A1206
Gage, Runout - CDP
Seal (110V/60Hz)
(runout gage) G05
P/N
856A1219
Heater, HPT Aft Shaft
(110V/60Hz) (shaft
heater) G03
P/N
856A1394
Fixture, Lift - CG
Adjustable (CG lift
fixture)
856A1206
Gage, Runout - CDP
Seal (220V/50Hz)
(runout gage) G04
P/N
856A1219
Heater, HPT Aft Shaft
(110V/60Hz) (shaft
heater) G02
P/N
856A1358
Fixture, Install/Remove Module 12
P/N
856A1508
Fixture, Heater-HP
Turbine, Aft Shaft (208240V,50-60 Hz) (heater
tool)
P/N
856A2004
Tool, Assembly Install/Remove HPTR
to Compressor Rotor
Nuts
P/N
9446M18
Controller
TASK 72-00-53-870-001- 0
HIGH PRESSURE TURBINE SHROUD AND STAGE 1 LOW PRESSURE
TURBINE NOZZLE ASSEMBLY - DESCRIPTION
1.
General.
The high pressure turbine (HPT) shroud and stage 1 low pressure turbine (LPT) nozzle assembly
is located inside the af end of the combustion case. It forms the interface between the core
section and the LPT module of the engine. The forward flange of the assembly is bolted to the
inner surfaces of the combustion case. The af flange is bolted between the combustion case af
flange and the LPT stator forward flange.
The shroud/nozzle support assembly has a thermal response matched to the rotor to provide
good tip clearance control and structural stability. An air cavity between the shroud/nozzle
support assembly and the combustion case directs mixed 5th and 9th stage compressor bleed air
onto the support and the outer, or backside, of the shrouds. This cooling air maintains closer
clearances between the shrouds and the rotor blades.
The stage 1 LPT nozzles direct the core engine exhaust gas onto the stage 1 LPT blades. An air
cavity between the stage 1 nozzle support and the combustion case directs 5th stage
compressor bleed air through the nozzle vanes for cooling. Afer passing through the vanes, the
air pressurizes and cools the cavity between the af side of the HPT rotor and the forward side of
the LPT rotor.
TASK 72-00-53-020-001- 0
HIGH PRESSURE TURBINE SHROUD AND STAGE 1 LOW PRESSURE
TURBINE NOZZLE ASSEMBLY - REMOVAL
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1127
Protector, Stud - HPT
Shroud and LPT Nozzle
Support
P/N
856A1358
Fixture, Install/Remove Module 12
TASK 72-00-53-420-001- 0
HIGH PRESSURE TURBINE SHROUD AND STAGE 1 LOW PRESSURE
TURBINE NOZZLE ASSEMBLY - INSTALLATION
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1127
Protector, Stud - HPT
Shroud and LPT Nozzle
Support
P/N
856A1358
Fixture, Install/Remove Module 12
TASK 72-00-54-870-001- 0
LOW PRESSURE TURBINE ROTOR/STATOR MODULE - DESCRIPTION AND
OPERATION
1. General.
The low pressure turbine (LPT) module is a 4-stage, axial- flow turbine. It is mounted between
the core engine and the turbine frame.
The module consists of the following major assemblies:
(1) LPT stator assembly.
(2) LPT rotor assembly.
TASK 72-00-55-870-001- 0
LOW PRESSURE TURBINE SHAFT MODULE - DESCRIPTION AND
OPERATION
1. General.
The low pressure turbine (LPT) shaf module connects the fan shaf with the LPT rotor. It consists
of the LPT shaf, LPT stub shaf, center vent tube, and center vent tube rear extension duct. The
af end of the LPT shaf is supported by the No. 5 roller bearing. The forward end of the shaf is
coupled with the fan shaf. The LPT shaf has 2 functions: coupling the fan booster rotor with the
LPT rotor and providing for high pressure compressor (HPC) rear support through the No. 4
bearing. In addition, the LPT shaf houses the center vent tube of the forward and af engine oil
sumps.
The LPT shaf module consists of the following major parts:
(1) LPT shaf assembly.
(2) No. 4 roller bearing.
(3) No. 5 roller bearing.
TASK 72-00-56-870-001- 0
TURBINE FRAME MODULE - DESCRIPTION AND OPERATION
1. General.
The turbine frame module is the major structural assembly at the rear of the engine. It supports
the low pressure turbine (LPT) rotor rear section and provides for engine rear mounting on the
airframe.
The turbine frame module consists of the following major parts:
(1) Turbine frame.
(2) No. 5 bearing support
TASK 72-00-56-020-001- 0
TURBINE FRAME MODULE – REMOVAL
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1122
P/N
Stand - Engine
Maintenance
P/N
856A1313
Ring - Engine Handling
Support
P/N
856A2576
Spacers, Support - LPT
Rotor/LPT Case
P/N
856A3484
Ring, Protective - No. 5
Bearing
TASK 72-00-56-420-001- 0
856A1312
Handling Supports Engine Maintenance
P/N
856A1314
Bracket Set Support LPT Aft Mount (use with
856A1312) (LPT bracket
set support)
P/N
856A2651
Pad, Engine Support
TURBINE FRAME MODULE – INSTALLATION
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1122
P/N
Stand - Engine
Maintenance
P/N
856A1314
Bracket Set Support LPT Aft Mount (use
with 856A1312) (LPT
bracket set support
P/N
856A2549
Sectors Handling Turbine Frame Module
P/N
856A2646
856A1312
Handling Supports Engine Maintenance
P/N
856A2544
Dolly, Trunnion Turbine Frame Module
P/N
856A2576
Spacers, Support - LPT
Rotor/LPT Case
P/N
856A2651
Dolly, Trunnion Turbine Frame
Maintenance Module
P/N
856A3383
Fixture, Alignment LPT Rear Frame to LPT
TASK 72-00-61-870-001- 0
Pad, Engine Support
P/N
856A3484
Ring, Protective - No. 5
Bearing
INLET GEARBOX AND NO. 3 BEARING MODULE - DESCRIPTION AND
OPERATION
1. General.
This page block gives data for the inlet gearbox (IGB) is located in the fan frame sump and is
bolted to the forward side of the fan frame af flange. The gearbox contains a horizontal bevel
gear, a radial bevel gear, and core engine thrust bearing. The gearbox module serves as the
mechanical coupling between the high pressure compressor (HPC) rotor and the transfer
gearbox (TGB). It also supports the HPC rotor shaf.
TASK 72-00-61-020-001- 0
INLET GEARBOX AND NO. 3 BEARING MODULE – REMOVAL
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1001
Wrench, Keyed Torque Multiplier
P/N
856A1291
856A1120
P/N
Fixture, Install and
Remove - IGB Module
856A3501
P/N
Fixture, Install and
Remove - Inlet Gearbox
Module
Fixture,
Alignment/Guide
Booster/LPT Shaft
TASK 72-00-61-420-001- 0
INLET GEARBOX AND NO. 3 BEARING MODULE - INSTALLATION
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1001
Wrench, Keyed Torque Multiplier
P/N
856A1118
Gage Set, Seating - IGB
Module to C/R Shaft
P/N
856A1120
Fixture, Install and
Remove - IGB Module
P/N
856A1291
Fixture, Install and
Remove - Inlet Gearbox
Module
P/N
856A1512
Heater - Bevel Gear,
Inlet Gearbox
P/N
9446M18
Controller
TASK 72-00-62-870-001- 0
P/N
856A1265
Heater, Bevel Gear, Inlet
Gearbox
P/N
856A1388
Gage, Seating Check Core Module to Inlet
Gearbox
P/N
856A3501
Fixture,
Alignment/Guide
Booster/LPT Shaft
TRANSFER GEARBOX MODULE - DESCRIPTION AND OPERATION
1. General.
The transfer gearbox (TGB) module provides power transmission between the inlet gearbox (IGB)
and the accessory gearbox (AGB).
It consists of the following major assemblies:
(1) Radial drive shaf assembly.
(2) TGB assembly
(3) Horizontal drive shaf assembly
TASK 72-00-62-020-001- 0
TRANSFER GEARBOX MODULE - REMOVAL
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1122
P/N
Stand - Engine
Maintenance (Stand)
G11
P/N
856A1130
Stand - Engine
Maintenance (Stand)
G12
P/N
Tool Set - Jackscrews
P/N
856A3509
Adapter, Locking Core Engine
856A1122
856A1312
Handling Supports Engine Maintenance
(Supports)
P/N
856A3600
Puller - Radial Drive
Shaft
P/N
856A3604
Wrench, Horizontal
Drive Shaft Nut
TASK 72-00-62-420-001- 0
TRANSFER GEARBOX MODULE – INSTALLATION
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1122
P/N
Stand - Engine
Maintenance (Stand)
G11
P/N
856A1130
Tool Set - Jackscrews
856A1122
Stand - Engine
Maintenance (Stand)
G12
P/N
856A1312
Handling Supports Engine Maintenance
(Supports)
P/N
856A2509
Beam, Liftin, Variable
CG - Engine (Alt.
856A2645)
P/N
856A600
Puller - Radial Drive
Shaft
TASK 72-00-63-870-001- 0
P/N
856A3509
Adapter, Locking - Core
Engine
P/N
856A3604
Wrench, Horizontal
Drive Shaft Nut
ACCESSORY GEARBOX MODULE - DESCRIPTION AND OPERATION
1. General.
The accessory gearbox (AGB) module is mounted on the lef- hand side of the fan frame. It
consists of a gear train that reduces and increases the rotational speed to meet the specific drive
requirements of each accessory. Certain of the accessories are installed on the AGB through
quick attach/detach (QAD) rings.
The AGB consists of the following major components.
(1) AGB housing.
(2) Gear train.
TASK 72-00-63-020-001- 0
ACCESSORY GEARBOX MODULE - REMOVAL
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1122
P/N
Stand - Engine
Maintenance (Stand)
G11
P/N
856A1130
Stand - Engine
Maintenance (Stand)
G12
P/N
Tool Set - Jackscrews
P/N
856A2609
Block, Jacking - Fuel
Pump/MEC or HMU
856A1122
856A1312
Handling Supports Engine Maintenance
(Supports)
P/N
856A3519
Sling, 3-Leg - AGB
Handling
P/N
856A3525
Cradle,
Removal/Installation AGB
P/N
856A3591
Protector, Mounting
Pin - Accessory
Gearbox
P/N
856A3604
Wrench - Horizontal
Drive Shaft Nut
TASK 72-00-63-420-001- 0
P/N
856A3588
Container, Shipping AGB Module
P/N
856A3598
Cradle, Remove/Install.
- Fuel Pump and MEC
Package
ACCESSORY GEARBOX MODULE – INSTALLATION
A. Tools and Equipment.
(1) Special Tools :
P/N
856A1122
P/N
Stand - Engine
Maintenance (Stand)
G11
P/N
856A1130
Stand - Engine
Maintenance (Stand)
G12
P/N
Tool Set - Jackscrews
P/N
856A3509
Adapter, Locking Core Engine
856A1122
856A1312
Handling Supports Engine Maintenance
(Supports)
P/N
856A3519
Sling, 3-Leg - AGB
Handling
P/N
856A3525
P/N
Cradle,
Removal/Installation AGB
P/N
856A3588
Container, Shipping AGB Module
P/N
856A3598
Cradle, Remove/Install.
- Fuel Pump and MEC
Package
856A3537
Checking Tool, AGB
Position
P/N
856A3591
Protector, Mounting Pin
- Accessory Gearbox
P/N
856A3604
Wrench - Horizontal
Drive Shaft Nut