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 72-50-10-030-003 LPT Case And Rotor Assembly - Disassemble The LPT Stage 7 Stator Vanes From The LPT, Disassembly-003
General
Refer to TASK 72-50-10-030-001 (Prepare for Disassembly) before you do this TASK.
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.
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 TASK 70-64-00-640-501.
Remove and discard the lockwire before parts are disconnected or removed.
Discard all rubber seal rings, cotter pins and keywashers removed in this procedure.
Refer to TASK 72-50-00-990-501 for a sectional view of the LP turbine module.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Basket | LOCAL | Basket | For blades and vanes | |
| IAE 1M14010 Assembly/Disassembly fixture | 0AM53 | IAE 1M14010 | 1 | |
| IAE 1M14094 Retaining block | 0AM53 | IAE 1M14094 | 33 | |
| IAE 1M14124 Protector ring segment | 0AM53 | IAE 1M14124 | 3 |
Consumables, Materials and Expendables
NONESpares
NONESafety Requirements
NONEProcedure
Turn the lifting ring of the IAE 1M14010 Assembly/Disassembly fixture 1 off in to the up position.
SUBTASK 72-50-10-030-140 Turn the Lifting Ring of the Assembly/Disassembly Fixture in to the Up Position
Refer to: Figure
Install the IAE 1M14124 Protector ring segment 3 off between the stage 7 vanes inner platforms and the stage 6 blades roots.
SUBTASK 72-50-10-030-141 Install the Protector Ring Segments
Refer to: Figure
Remove the stage 7 shroud seal. Pull the stage 7 vane segment rearwards out of the turbine case. Keep the stage 6 vane segment with the IAE 1M14094 Retaining block 1 off. Install the retaining blocks at the joint of the stage 6 vanes. Do this procedure with all 32 vane segments.
SUBTASK 72-50-10-030-070 Remove the Stage 7 Vane Segments, and 72-50-10-990-017
Refer to: Figure
SUBTASK 72-50-10-030-142 Remove the Protector Ring Segments
Figure: Remove the stage 7 vanes
Remove the stage 7 vanes

Figure: Install the retaining blocks to the stage 6 vanes
Install the retaining blocks to the stage 6 vanes

