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-A5
Common Information
TASK 72-50-10-430-002-B00 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 |
|---|---|---|---|---|
| DELETED | 0AM53 | DELETED | ||
| 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 1M14110 Turnover stand | 0AM53 | IAE 1M14110 | 1 | |
| IAE 1M14141 Locating fixture | 0AM53 | IAE 1M14141 | 1 | |
| IAE 1M14142 Clamping ring | 0AM53 | IAE 1M14142 | 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

CAUTION
SAFETY THE TURNOVER STAND 1 OFF WITH THE FOUR ARMS.Use hoist equipment. Lift the IAE 1M14010 Assembly/Disassembly fixture 1 off on to the IAE 1M14110 Turnover stand.
Attach the IAE 1M14010 Assembly/Disassembly fixture with the eight screws and nuts. Tighten the screws and the nuts.
Make sure that the lifting ring of the IAE 1M14010 Assembly/Disassembly fixture is in the Zero Position.
Turn the six clamps of the IAE 1M14010 Assembly/Disassembly fixture inwards to the stop.
Make sure that the installation locations of the LP turbine case front flange and the stage 3 rotating air seal are free of dirt on the IAE 1M14010 Assembly/Disassembly fixture.
SUBTASK 72-50-10-430-245 Install the Assembly/Disassembly Fixture to the Turnover Stand
Attach the IAE 1M14063 Guide fixture 1 off to the IAE 1M14010 Assembly/Disassembly fixture with the three bolts. Tighten the bolts.
SUBTASK 72-50-10-430-246 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 IAE 1M14010 Assembly/Disassembly fixture.
Lower the LP turbine case carefully on to the IAE 1M14010 Assembly/Disassembly fixture. The Top mark of the LP turbine case must point at the Top mark of the IAE 1M14010 Assembly/Disassembly fixture.
Attach the LP turbine case front flange with the 25 screws and washers on to the lifting ring of the IAE 1M14010 Assembly/Disassembly fixture. Tighten the screws.
SUBTASK 72-50-10-430-247 Attach the LP Turbine Case to the Assembly/Disassembly Fixture
Remove the IAE 1F10052 Two cables sling from the LP turbine case.
Remove the IAE 1F10052 Two cables sling from the hoist equipment.
Loosen the seven bolts of the IAE 1M14039 Lifting bracket 2 off. Remove the bolts and the IAE 1M14039 Lifting bracket from the LP turbine case.
SUBTASK 72-50-10-430-248 Remove the Two Cables Sling and the Lifting Brackets from the LP Turbine Case
Make sure that the upper segment seal is 1.5 degrees right from the top position, refer to Figure.
SUBTASK 72-50-10-430-249 Install the Stage 3 Segment Seals
Put the front groove of the IAE 1M14141 Locating fixture 1 off over the rear locating dogs of the stage 3 shroud seal segments.
Bring the rear locating dogs of the IAE 1M14141 Locating fixture in to line with the correct grooves of the LP turbine case.
SUBTASK 72-50-10-430-292 Align the Stage 3 Shroud Seal Segments with the Locating Fixture
NOTE
When you align the shroud seal segments the IAE 1M14141 Locating fixture must be positioned over two seal segments.Refer to Figure.
Install the two halves of the IAE 1M14142 Clamping ring 1 off to the stage 3 disk.
Attach the IAE 1M14142 Clamping ring with the hand knob. Tighten the hand knob.
SUBTASK 72-50-10-430-253 Install the Clamping Rings to the Stage 3 Disk
Use hoist equipment to install the IAE 1M14156 Lifting fixture 1 off to the IAE 1M14142 Clamping ring.
Lift the stage 3 disk. Put the stage 3 disk, front side down, on to the IAE 1M14030 Assembly trolley 1 off.
Make sure that the stage 3 disk hole aligns with the hole in the IAE 1M14030 Assembly trolley.
Remove the hoist equipment and the IAE 1M14156 Lifting fixture.
Loosen the hand knob and disconnect the single acting ball lock pin. Remove the two halves of the IAE 1M14142 Clamping ring from the stage 3 disk.
SUBTASK 72-50-10-430-254 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 IAE 1M14059 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.
Lift the IAE 1M14059 Lifting fixture above the IAE 1M14030 Assembly trolley.
Lower the IAE 1M14059 Lifting fixture carefully on to the stage 3 disk.
Move the clamps on the IAE 1M14059 Lifting fixture to the outer direction in the identified position for the stage 3. Attach the clamps with the hand knobs. Tighten the hand knobs.
SUBTASK 72-50-10-430-255 Attach the Lifting Fixture on to the Stage 3 Disk
Refer to Figure.
Lift the stage 3 disk from the IAE 1M14030 Assembly trolley above the LP turbine case. Engage the front end of the guide tube through the IAE 1M14063 Guide fixture.
Lower the stage 3 disk carefully in to the LP turbine case. Lower until the stage 3 rotating air seal is correctly positioned on the IAE 1M14010 Assembly/Disassembly fixture.
SUBTASK 72-50-10-430-256 Install the Stage 3 Disk
Refer to Figure.
Loosen the hand knobs of the IAE 1M14059 Lifting fixture. Move the clamps in to the inner position.
Remove the IAE 1M14059 Lifting fixture from the stage 3 rotor disk.
SUBTASK 72-50-10-430-257 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.Turn the six clamps of the IAE 1M14010 Assembly/Disassembly fixture outwards to the stop.
SUBTASK 72-50-10-430-258 Safety the Stage 3 Disk
Figure: Install the Segment Seals, the Rear Heatshields and the Shroud Seal Segments
Install the Segment Seals, the Rear Heatshields and the Shroud Seal Segments

Figure: Install the Segment Seals, the Rear Heatshields and the Shroud Seal Segments
Install the Segment Seals, the Rear Heatshields and the Shroud Seal Segments

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

