Export Control
EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.Copyright
© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).Applicability
All
Common Information
TASK 75-24-49-040-101-C00 LPT ACC Air Ducts And Tubes - Disassemble The Support Assemblies From The LPT Cooling Air Ducts And Tubes, Disassembly-001
General
WARNING
Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the IPC.
For all parts identified in a different Chapter/Section/Subject, the applicable Chapter/Section/Subject comes before the Fig/item number.
Apply the approved penetrating oil before the removal of threaded parts. Let the parts soak before removal. For the approved oils and procedures, refer to SPM TASK 70-64-00-640-501.
Discard all flexible seals removed in this procedure.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| IAE 1M14084 Support fixture | 0AM53 | IAE 1M14084 | 2 off |
Consumables, Materials and Expendables
NONESpares
NONESafety Requirements
NONEProcedure
Carefully put the lower LP turbine cooling air duct on a work bench.
SUBTASK 75-24-49-040-067 Put the Lower LP Turbine Cooling Air Duct on a Work Bench
NOTE
For the location of the support assembly.Loosen the 16 bolts.
Remove the 16 bolts from the support assembly B.
Move the support assembly B above the tube ends of the lower LP turbine cooling air duct.
SUBTASK 75-24-49-040-068 Remove the Support Assembly B from the Lower LP Turbine Cooling Air Duct
NOTE
For the location of the support assembly.Loosen the 16 bolts.
Remove the 16 bolts from the support assembly E.
Move the support assembly E above the tube ends of the lower LP turbine cooling air duct.
SUBTASK 75-24-49-040-069 Remove the Support Assembly E from the Lower LP Turbine Cooling Air Duct
NOTE
For the location of the support assembly.Loosen the 16 bolts.
Remove the 16 bolts from the support assemblies C and D.
Move the support assemblies C and D above the tube ends of the lower LP turbine cooling air duct.
SUBTASK 75-24-49-040-070 Remove the Support Assemblies C and D from the Lower LP Turbine Cooling Air Duct
Refer to Figure.
Install the lower LP turbine cooling air duct to the IAE 1M14084 Support fixture 1 off. Make sure that the tube ends are engaged correctly in their holes.
Safety the lower LP turbine cooling air duct to the support fixture with the swing bolt, the knurled knob, the two washers and the two screws.
SUBTASK 75-24-49-040-079 Install the Lower LP Turbine Cooling Air Duct to the Support Fixture
Carefully put the upper LP turbine cooling air duct on a work bench.
SUBTASK 75-24-49-040-080 Put the Upper LP Turbine Cooling Air Duct on a Work Bench
NOTE
For the location of the support assembly.Loosen the 16 bolts.
Remove the 16 bolts from the support assemblies A and F.
Move the support assemblies A and F above the tube ends of the upper LP turbine cooling air duct.
SUBTASK 75-24-49-040-073 Remove the Support Assemblies A and F from the Upper LP Turbine Cooling Air Duct
Refer to Figure.
Install the upper LP turbine cooling air duct to the IAE 1M14084 Support fixture 1 off. Make sure that the tube ends are engaged correctly in their holes.
Safety the upper LP turbine cooling air duct to the support fixture with the swing bolt, the knurled knob, the two washers and the two screws.
SUBTASK 75-24-49-040-081 Install the Upper LP Turbine Cooling Air Duct to the Support Fixture
Figure: Install/Remove the LP Turbine Cooling Air Duct to/from the Support Fixture
Install/Remove the LP Turbine Cooling Air Duct to/from the Support Fixture

Figure: Position of the Support Assemblies
Position of the Support Assemblies

Figure: Removal of the Support Assemblies from the Lower LP Turbine Cooling Air Duct
Removal of the Support Assemblies from the Lower LP Turbine Cooling Air Duct

Figure: Removal of the Support Assemblies from the Upper LP Turbine Cooling Air Duct
Removal of the Support Assemblies from the Upper LP Turbine Cooling Air Duct

