TASK 72-50-30-040-004 LPT Stage 4 Rotor Assembly - Disassemble, Disassembly-004

DMC:V2500-A0-72-50-3004-00A-530A-B|Issue No:003.00|Issue Date:2020-02-01

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 72-50-30-040-004 LPT Stage 4 Rotor Assembly - Disassemble, Disassembly-004

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.

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 the SPM 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 disk and blades.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
MalletLOCALMallet

Soft head

IAE 1F10026 Hydraulic hand pump0AM53IAE 1F100261
IAE 1M14043 Hydraulic basic fixture0AM53IAE 1M140431
IAE 1M14079 Plastic wedge0AM53IAE 1M140791
IAE 1M14080 Clamping ring0AM53IAE 1M140801
IAE 1M14090 Clamping jaw0AM53IAE 1M140906
IAE 1M14148 Hydraulic basic fixture0AM53IAE 1M141481
IAE 1M14154 Assy/disassy stand0AM53IAE 1M141541
IAE 1M14156 Lifting fixture0AM53IAE 1M141561

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-30-040-084-A00 V2500-A1: Prepare the Hydraulic Basic Fixture to Install the Stage 4 Disk

    1. Refer to Figure

    2. Put the IAE 1M14043 Hydraulic basic fixture 1 off on to a work bench.

    3. Remove the support, part of the hydraulic basic fixture from the hydraulic basic fixture.

    4. Loosen fully the six nuts which attach the six clamps of the hydraulic basic fixture.

    5. Move the six clamps inwards to the rear position.

    2. SUBTASK 72-50-30-040-084-B00 V2500-A5: Prepare the Hydraulic Basic Fixture to Install the Stage 4 Disk

    1. Refer to Figure

    2. Put the IAE 1M14148 Hydraulic basic fixture 1 off on to a work bench.

    3. Remove the support, part of the hydraulic basic fixture from the hydraulic basic fixture.

    4. Loosen fully the six nuts which attach the six clamps of the hydraulic basic fixture.

    5. Move the six clamps inwards to the rear position.

    3. SUBTASK 72-50-30-040-085 Install the Clamping Ring on to the Stage 4 Disk

    1. Refer to Figure

    2. Install the two halves of the IAE 1M14080 Clamping ring 1 off to the stage 4 disk.

    3. Connect the two halves with the single acting ball lock pin.

    4. Attach the clamping ring with the hand knob.

    5. Tighten the hand knob.

    4. SUBTASK 72-50-30-040-086 Install the Stage 4 Disk in to the Hydraulic Basic Fixture

    1. Refer to Figure.

    2. Install the IAE 1M14156 Lifting fixture 1 off to hoist equipment.

    3. Install the lifting fixture to the clamping ring and lift the stage 4 disk. Turn the stage 4 disk, air seal in upper position.

    4. Move the stage 4 disk in position above the hydraulic basic fixture.

    5. Lower the stage 4 disk carefully in to the hydraulic basic fixture. Lower until the rear face of the disk aligns on to the centering rod.

    6. Remove the lifting fixture and the hoist equipment from the clamping ring.

    7. Move the six clamps outwards above the stage 4 disk inner rear flange.

    8. Make sure that all the clamps are in correct position above the inner rear flange of the stage 4 disk.

    9. Tighten the six nuts to attach the stage 4 disk in to the hydraulic basic fixture.

    10. CAUTION

      HOLD THE BOLTS IN THEIR POSITION WHEN YOU LOOSEN AND REMOVE THE NUTS FROM THE BOLTS. DO NOT TURN THE BOLTS OR MAKE TO-AND-FRO MOVEMENTS. THE DISK/INNER AIR SEAL FLANGES AND THE BOLTS CAN BE DAMAGED BY SCORES.

      Remove all six work nuts and bolts which safety the air seal to the disk.

    5. SUBTASK 72-50-30-040-087 Prepare the Hydraulic Basic Fixture for the Installation of the Support

    1. Install the connector of the IAE 1F10026 Hydraulic hand pump 1 off to the coupler, part of the hydraulic cylinder.

    2. Make sure that the connector is correctly fitted to the coupler.

    3. Open the hydraulic valve at the hydraulic basic fixture.

    4. Operate the hydraulic pump to get the pivot in upper position.

    5. Close the hydraulic valve at the hydraulic basic fixture and disconnect the hydraulic pump.

    6. SUBTASK 72-50-30-040-088-A00 V2500-A1 Install the Support on to the Hydraulic Basic Fixture

    1. Refer to Figure

    2. Align the center hole of the support, part of IAE 1M14043 Hydraulic basic fixture 1 off with the pivot. Install the support.

    3. Make sure that the abutment face of the support is correctly aligned with the abutment face of the pivot.

    7. SUBTASK 72-50-30-040-088-B00 V2500-A5 Install the Support on to the Hydraulic Basic Fixture

    1. Refer to Figure

    2. Align the center hole of the support, part of IAE 1M14148 Hydraulic basic fixture 1 off with the pivot. Install the support.

    3. Make sure that the abutment face of the support is correctly aligned with the abutment face of the pivot.

    8. SUBTASK 72-50-30-040-089 Install the Clamping Jaws on to the Support

    1. Refer to Figure

    2. Turn the knurled screws of the IAE 1M14090 Clamping jaw 6 off fully outwards. Install the clamping jaws to the support.

    3. Loosen the knurled knobs until the spring-loaded clamps are in fully opened position.

    4. Engage the clamping jaws carefully to the support.

    5. Open the hydraulic valve at the hydraulic basic fixture and let the support move downwards. Lower the jaws until they are in correct alignment with the stage 4 air seal upper lip.

    6. Close the hydraulic valve.

    7. Move the six clamping jaws inwards until they are in correct contact with the stage 4 air seal outer diameter.

    8. Tighten the knurled knobs of the clamping jaws until the spring-loaded clamps are fully closed.

    9. Tighten the knurled screws to secure the clamping jaws at the support.

    10. Install the connector of the IAE 1F10026 Hydraulic hand pump 1 off to the coupler, part of the hydraulic cylinder.

    11. Make sure that the connector is correctly fitted to the coupler.

    9. SUBTASK 72-50-30-040-090-A00 V2500-A1 Remove the Air Seal from the Stage 4 Disk

    1. Refer to Figure

    2. Operate the IAE 1F10026 Hydraulic hand pump carefully until the air seal is free from the stage 4 disk abutment face.

    3. Open the hydraulic valve at the IAE 1M14043 Hydraulic basic fixture 1 off. Lower the support with the stage 4 air seal carefully until the air seal is in contact with the stage 4 disk.

    4. Close the hydraulic valve and disconnect the hydraulic pump from the hydraulic basic fixture.

    10. SUBTASK 72-50-30-040-090-B00 V2500-A5 Remove the Air Seal from the Stage 4 Disk

    1. Refer to Figure

    2. Operate the hydraulic pump carefully until the air seal is free from the stage 4 disk abutment face.

    3. Open the hydraulic valve at the IAE 1M14148 Hydraulic basic fixture 1 off. Lower the support with the stage 4 air seal carefully until the air seal is in contact with the stage 4 disk.

    4. Close the hydraulic valve and disconnect the hydraulic pump from the hydraulic basic fixture.

    11. SUBTASK 72-50-30-040-091-A00 V2500-A1 Remove the Jaws from the Stage 4 Air Seal

    1. Refer to Figure

    2. Loosen the knurled knobs of the IAE 1M14090 Clamping jaws until the spring-loaded clamps are fully opened.

    3. Loosen the six knurled screws of the clamping jaws. Move the clamping jaws outwards and remove them from the support.

    4. Remove the support from the IAE 1M14043 Hydraulic basic fixture 1 off.

    5. Remove the stage 4 air seal from the hydraulic basic fixture. Put it down on the work bench or in a storage box.

    12. SUBTASK 72-50-30-040-091-B00 V2500-A5 Remove the Jaws from the Stage 4 Air Seal

    1. Refer to Figure

    2. Loosen the knurled knobs of the clamping jaws until the spring loaded clamps are fully opened.

    3. Loosen the six knurled screws of the clamping jaws. Move the clamping jaws outwards and remove them from the support.

    4. Remove the support from the IAE 1M14148 Hydraulic basic fixture 1 off.

    5. Remove the stage 4 air seal from the hydraulic basic fixture. Put it down on the work bench or in a storage box.

    13. SUBTASK 72-50-30-040-092-A00 V2500-A1 Remove the Stage 4 Disk from the Hydraulic Basic Fixture

    1. Refer to Figure.

    2. Install the IAE 1M14156 Lifting fixture 1 off to hoist equipment.

    3. Install the hoist equipment on to the installed IAE 1M14080 Clamping ring.

    4. Lift the stage 4 disk and remove it from the IAE 1M14043 Hydraulic basic fixture 1 off.

    5. Make sure that you use the correct locating ring of the IAE 1M14154 Assy/disassy stand 1 off for the stage 4 disk.

    6. Lower the stage 4 disk on to the IAE 1M14154 Assy/disassy stand 1 off, rear flange upwards.

    7. Remove the lifting fixture and the hoist equipment.

    14. SUBTASK 72-50-30-040-092-B00 V2500-A5 Remove the Stage 4 Disk from the Hydraulic Basic Fixture

    1. Refer to Figure.

    2. Install the lifting fixture to a hoist equipment.

    3. Install a hoist equipment on to the installed clamping ring.

    4. Lift the stage 4 disk and remove it from the IAE 1M14148 Hydraulic basic fixture 1 off.

    5. Make sure that you use the correct locating ring of the IAE 1M14154 Assy/disassy stand 1 off for the stage 4 disk.

    6. Lower the stage 4 disk on to the IAE 1M14154 Assy/disassy stand 1 off, rear flange upwards.

    7. Remove the lifting fixture and the hoist equipment.

    15. SUBTASK 72-50-30-040 -093 Remove the Clamping Ring from the Stage 4 Disk

    1. Refer to Figure

    2. Loosen the hand knobs and disconnect the single acting ball lock pins at the IAE 1M14080 Clamping ring.

    3. Remove the two halves of the clamping ring from the stage 4 disk.

    16. SUBTASK 72-50-30-040-094 Remove the Stage 4 Turbine Blades from the Disk

    1. Refer to Figure

    2. Lightly hit the blades at the blade roots. Operate stepwise and in clockwise direction to disengage the blades. Use the IAE 1M14079 Plastic wedge 1 off and a soft headed mallet.

    3. Remove all 99 blades and put them in to the blade trays.

    4. Put the stage 4 disk in a storage box.

    17. Figure: Turn the Stage 4 Disk with the Clamping Ring

    Turn the Stage 4 Disk with the Clamping Ring

    Figure: Install the Stage 4 Turbine Disk in to the Hydraulic Basic Fixture

    Install the Stage 4 Turbine Disk in to the Hydraulic Basic Fixture

    Figure: Remove the Stage 4 Turbine Blades

    Remove the Stage 4 Turbine Blades

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Corrected internal reference (Editorial)

Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:0AM53
Tool Number:IAE 1F10026
Tool Name:IAE 1F10026 Hydraulic hand pump
Manufacturer Code:0AM53
Tool Number:IAE 1M14043
Tool Name:IAE 1M14043 Hydraulic basic fixture
Manufacturer Code:0AM53
Tool Number:IAE 1M14079
Tool Name:IAE 1M14079 Plastic wedge
Manufacturer Code:0AM53
Tool Number:IAE 1M14080
Tool Name:IAE 1M14080 Clamping ring
Manufacturer Code:0AM53
Tool Number:IAE 1M14090
Tool Name:IAE 1M14090 Clamping jaw
Manufacturer Code:0AM53
Tool Number:IAE 1M14148
Tool Name:IAE 1M14148 Hydraulic basic fixture
Manufacturer Code:0AM53
Tool Number:IAE 1M14154
Tool Name:IAE 1M14154 Assy/disassy stand
Manufacturer Code:0AM53
Tool Number:IAE 1M14156
Tool Name:IAE 1M14156 Lifting fixture
Manufacturer Code:LOCAL
Tool Number:Mallet
Tool Name:Mallet