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
V2500-A1
Common Information
TASK 72-50-10-430-002-A00 LPT Case And Rotor Assembly - Assemble The LPT Stage 3 Rotor Assembly To The LPT, Assembly-002
General
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.
For standard torque data and procedures, refer to the SPM TASK 70-41-01-400-501 and SPM TASK 70-41-02-400-501.
Special torque data and assembly tolerances are included in the procedure.
Lubricate all threads and abutment faces of nuts and bolts with CoMat 10-077 APPROVED ENGINE OILS, unless other lubricants are referred to in the procedure.
To identify, lubricate and install seal rings, refer to the SPM TASK 70-44-01-400-501.
The number for each radial location must be identified in a clockwise direction. These start at the engine top position when you look from the rear of the engine, unless stated differently in the procedure.
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Straight edge | LOCAL | Straight edge | ||
| Depth gage | LOCAL | Depth gage | ||
| IAE 1F10052 Two cables sling | 0AM53 | IAE 1F10052 | 1 | |
| IAE 1M14010 Assembly/Disassembly fixture | 0AM53 | IAE 1M14010 | 1 | |
| IAE 1M14030 Assembly trolley | 0AM53 | IAE 1M14030 | 1 | |
| IAE 1M14039 Lifting bracket | 0AM53 | IAE 1M14039 | 2 | |
| IAE 1M14059 Lifting fixture | 0AM53 | IAE 1M14059 | 1 | |
| IAE 1M14063 Guide fixture | 0AM53 | IAE 1M14063 | 1 | |
| IAE 1M14075 Locating fixture | 0AM53 | IAE 1M14075 | 1 | |
| IAE 1M14078 Clamping ring | 0AM53 | IAE 1M14078 | 1 | |
| IAE 1M14110 Turnover stand | 0AM53 | IAE 1M14110 | 1 | |
| IAE 1M14114 Sizing gage | 0AM53 | IAE 1M14114 | 1 | |
| IAE 1M14156 Lifting fixture | 0AM53 | IAE 1M14156 | 1 |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 10-077 APPROVED ENGINE OILS | LOCAL | CoMat 10-077 |
Spares
NONESafety Requirements
NONEProcedure
Use hoist equipment. Lift the IAE 1M14010 Assembly/Disassembly fixture 1 off on to the IAE 1M14110 Turnover stand 1 off.
SUBTASK 72-50-10-430-064 Install the Assembly/Disassembly Fixture to the Turnover Stand

CAUTION
SAFETY THE IAE 1M14110 Turnover stand WITH THE FOUR ARMS.Attach the IAE 1M14063 Guide fixture 1 off to the assembly/disassembly fixture with the three bolts. Tighten the bolts.
SUBTASK 72-50-10-430-065 Attach the Guide Fixture to the Assembly/Disassembly Fixture
Refer to: Figure
Use hoist equipment. Lift the LP turbine case with the IAE 1F10052 Two cables sling 1 off above the assembly/disassembly fixture.
SUBTASK 72-50-10-430-066 Attach the LP Turbine Case to the Assembly/Disassembly Fixture
Loosen the seven bolts of the IAE 1M14039 Lifting bracket 2 off. Remove the bolts and the lifting brackets from the LP turbine case.
SUBTASK 72-50-10-430-067 Remove the Two Cables Sling and the Lifting Brackets from the LP Turbine Case
Refer to: Figure
Calibrate the ring seal to the diameter 0.295in. (7.50 mm). Use the IAE 1M14114 Sizing gage 1 off.
SUBTASK 72-50-10-430-068 Install the Ring Seal
Refer to: Figure
SUBTASK 72-50-10-430-069 Install the Stage 3 Rear Heatshield
Refer to: Figure
SUBTASK 72-50-10-430-070 Install the Stage 3 Shroud Seal Segments
Refer to: Figure
Put the front groove of the IAE 1M14075 Locating fixture 1 off over the rear locating dogs of the stage 3 shroud seal segments.
SUBTASK 72-50-10-430-071 Align the Stage 3 Shroud Seal Segments with the Locating Fixture
NOTE
When you align the shroud seal segments the locating fixture must be positioned over two seal segments.Refer to: Figure
Install the two halves of the IAE 1M14078 Clamping ring 1 off to the stage 3 disk.
SUBTASK 72-50-10-430-072 Install the Clamping Ring to the Stage 3 Disk
Refer to Figure.
Use hoist equipment to install the IAE 1M14156 Lifting fixture 1 off to the clamping ring.
Lift the stage 3 disk. Put the stage 3 disk, front side down, on to the IAE 1M14030 Assembly trolley 1 off.
SUBTASK 72-50-10-430-073 Put the Stage 3 Disk on to the Assembly Trolley
Refer to: Figure
Use hoist equipment to install the IAE 1M14059 Lifting fixture 1 off. Make sure that the clamps of the lifting fixture are locked in the inner position. Install the three teflon bolts in the holes which are marked with the stage number of the disk to be installed.
SUBTASK 72-50-10-430-074 Attach the Lifting Fixture on to the Stage 3 Disk
Refer to: Figure
SUBTASK 72-50-10-430-075 Install the Stage 3 Disk
Refer to: Figure
SUBTASK 72-50-10-430-076 Remove the Lifting Fixture from the Stage 3 Disk
Refer to: Figure
NOTE
Make sure that the six clamps are correctly engaged between the bolts on the stage 3 disk front flange.
SUBTASK 72-50-10-430-078 Safety the Stage 3 Disk
Figure: Install the Segment Seals, the Rear Heatshield Segments and the Ring Seal
Install the Segment Seals, the Rear Heatshield Segments and the Ring Seal

Figure: Lift and Turn the Stage 3 Disk with the Clamping Ring
Lift and Turn the Stage 3 Disk with the Clamping Ring

Figure: Install the Stage 3 Disk
Install the Stage 3 Disk

