TASK 72-45-20-040-001-A00 HPT Case And Vane Assembly - Disassemble The Case And Vane Assembly, Disassembly-001 - Pre SB 72-0339

DMC:V2500-A1-72-45-2000-00A-530A-B|Issue No:002.00|Issue Date:2019-08-01

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

V2500-A1

Common Information

TASK 72-45-20-040-001-A00 HPT Case And Vane Assembly - Disassemble The Case And Vane Assembly, Disassembly-001 - Pre SB 72-0339

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 CoMat 10-058 PENETRATING OIL before the removal of threaded parts and parts with an interference fit. Let the parts soak before removal. Refer to 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 seal washers removed in this procedure.

Refer to TASK 72-45-00-990-501 (DESCRIPTION AND OPERATION) for a sectional view of the HP turbine case and vane assembly.

NOTE

To identify the consumable materials refer to the PCI.

NOTE

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
IAE 1P16013 Fixture0AM53IAE 1P160131
IAE 1P16026 Assembly fixture0AM53IAE 1P160261
IAE 1P16064 Puller0AM53IAE 1P160641
IAE 1P16158 Fixture0AM53IAE 1P161581
IAE 1P16173 Lift sling0AM53IAE 1P161731
IAE 1P16184 Puller0AM53IAE 1P161841

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 10-058 PENETRATING OILLOCALCoMat 10-058

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-45-20-040-051 Put the HP Turbine Case and Vane Assembly on a Workbench

    1. Refer to: Figure

    2. Attach the IAE 1P16173 Lift sling 1 off to the rear flange of the HP turbine case assembly and secure with the washers and the nuts.

    3. Attach the sling to a hoist and lift the HP turbine case and vane assembly and put on the workbench. Remove the sling and the hoist.

    2. SUBTASK 72-45-20-040-052 Remove the Stage 2 HPT Support Assembly and the Stage 2 Duct Support with the Airseal

    1. Refer to: Figure and Figure

    2. Remove the flat head screws which hold the stage 2 HPT support assembly to the HP turbine case rear flange.

      3. Install the IAE 1P16013 Fixture 1 off to the stage 2 HPT support assembly.

      1. Loosen the knurled knobs on the fixture and turn the clamps outward to have clearance between the tool and the support.

      2. Lift the fixture with a standard two cable sling and position over the case and vane assembly with the large OD flange down. Align the dowel pin hole (identified with an arrow) in the fixture flange with the dowel pin on the support flange with the pin on the fixture in an adjacent hole and lower the fixture in to position.

      3. Turn the clamps inward to engage the support and secure with the knurled knobs.

      4. Install the eight tool bolts, with 250-28 thread, to the threaded holes in the HP turbine case rear flange from the front. Turn the tool bolts to release the stage 2 HPT support assembly from the HP turbine case rear flange.

      5. Remove the eight tool bolts from the rear flange of the HP turbine case rear flange.

      6. Lift the stage 2 HPT support assembly and the stage 2 duct support with the airseal from the case and vane assembly. Turn the assembly 180 degrees and put on a workbench on the fixture legs. Remove the sling and the hoist.

      7. Release the knurled knobs on the fixture and turn the clamps outward to have clearance between the fixture and the support.

    3. SUBTASK 72-45-20-040-053 Separate the Stage 2 HPT Duct Support from the Stage 2 HPT Support Assembly

    1. Refer to: Figure

    2. Remove the stage 2 HPT support assembly and the stage 2 duct support with the airseal from the fixture.

      3. Install the support and duct assembly in to the IAE 1P16158 Fixture 1 off.

      1. Release the nuts and remove the fixture supports from the fixture base.

      2. Remove the press ring from the fixture.

      3. Install the stage 2 HPT support assembly and the stage 2 duct support with the airseal in to the fixture on to the center locater.

      4. Install the press ring to the fixture on to the stage 2 HPT support assembly.

      5. Loosen the jackscrews in the fixture supports. Install the fixture supports to the base of the fixture and secure with the washers and the nuts.

      6. Turn the jackscrews in equally to put pressure on the press ring for separation of the stage 2 HPT support assembly from the stage 2 HPT duct support.

      4. Remove the parts from the fixture.

      1. Release the jackscrews on the fixture supports.

      2. Release the nuts which secure the fixture supports to the fixture base and remove the fixture supports from the base.

      3. Remove the press ring from the fixture.

      4. Turn the stage 2 HPT support assembly to clear the tabs on the stage 2 HPT duct support and remove the support assembly from the fixture.

      5. Disengage the stage 2 HPT duct support from the airseal and remove the duct support and the duct support seals from the fixture.

      6. Remove the airseal from the fixture.

      7. Install the press ring in to the fixture. Install the fixture supports to the base and hold in place with the washers and the nuts.

    4. SUBTASK 72-45-20-040-054 Remove the Stage 2 HPT Duct Segments

    1. Refer to: Figure

    2. Remove the spring seal from the groove on the rear of the stage 2 HPT duct segments.

    3. Remove the stage 2 HPT duct segments and the seals from the stage 2 HPT ring segment and vane cluster.

    4. Remove the stage 2 HPT band segment assembly.

    5. Remove the spring seal from the groove at the OD of the stage 2 HPT ring segment and vane cluster.

    5. SUBTASK 72-45-20-040-055 Remove the Instrumentation Plugs

    1. Refer to: Figure

    2. Remove the wire from the bolts at the two instrumentation plug locations. Release and remove the bolts.

    3. Install IAE 1P16184 Puller 1 off, to the center hole in the plug.

    4. Remove the instrumentation plugs from the two bosses on the HP turbine case assembly. Discard the gaskets.

    6. SUBTASK 72-45-20-040-056 Turn the Case and Vane Assembly to the Front End Up Position

    1. Refer to: Figure

      2. Install the IAE 1P16026 Assembly fixture 1 off.

      1. Attach a standard two cable sling and a hoist to the fixture assembly.

      2. Release the bolts on the fixture and remove the four straps, the bolts and the nuts.

      3. Position the fixture assembly over the case and vane assembly with the lift spools down and align the dowel pin in the case flange with the dowel hole in the fixture and lower the fixture to the case.

      4. Position the straps to the case flange and secure in place with the retaining bolts and the retaining nuts.

      5. Lift the case and vane assembly from the workbench, turn 180 degrees and put on the workbench on the fixture legs.

      6. Remove the sling and the hoist.

    7. SUBTASK 72-45-20-040-057 Remove the Stage 1 HPT Duct Segments

    1. Refer to Figure and Figure.

    2. Remove the stage 1 HPT duct support set retaining screws and with the 190-32 tool bolts, release the stage 1 HPT duct support set. Turn in the tool bolts equally. Remove the support set and the seals.

    3. Remove the spring seal from the OD edge of the stage 1 HPT duct segments.

      4. Remove the stage 1 HPT duct segments, the seals and the HPT band segment assembly.

      1. Loosen the hand knob on the front of the IAE 1P16064 Puller 1 off.

      2. Slide the clamp back.

      3. Start in the middle of the band segment and install the front edge of the puller over the lip of the band.

      4. Pull back toward the engine centerline to make contact with the band.

      5. Slide the clamp into the groove and secure it with the hand knob.

        NOTE

        It may be necessary to do this procedure at two or three places on each segment.

      6. Slide the hammer back with sufficient force to loosen the segment.

    5. Remove the stage 1 HPT duct segments from the stage 1 HPT band segment assembly and remove the seals.

    6. Remove the spring seal from the outer edge of the vane foot.

    8. SUBTASK 72-45-20-040-058 Remove the HP Turbine Case Assembly from the Vanes

    1. Refer to Figure.

    2. Install the IAE 1P16173 Lift sling 1 off to the front (upper) flange of the HP turbine case assembly and secure with the washers and the nuts.

    3. Remove the nuts, the bolts and the straps which hold the case to the fixture.

    4. Attach a hoist to the sling on the case and lift the case from the fixture and put on a pallet. Remove the sling and the hoist.

    5. Remove the spring seals from the groove at the outer edge of the vane assemblies.

    9. SUBTASK 72-45-20-040-059 Remove the Stage 2 HPT Ring Segment and Vane Cluster from the Fixture

    1. Refer to Figure.

    2. Remove the stage 2 HPT ring segment and vane clusters from the fixture.

    3. Remove the seals from the grooves on each of the ring segment and vane clusters.

    4. Attach a standard two cable sling to the fixture and to a hoist. Remove the fixture from the workbench and put on a pallet. Remove the sling and the hoist.

    10. SUBTASK 72-45-20-040-082 Remove the HPT Rotor and Stator Identification Plate

    1. Refer to Figure.

      2. If necessary, remove the HPT rotor and stator identification plate Engine-HP Turbine Rotor and Stator Assembly ENGINE-HP TURBINE ROTOR AND STATOR ASSEMBLY (72-45-00, 01-240) from the bracket on the front flange of the turbine case assembly.

      1. Remove the bolts and nuts that attach the identification plate to the bracket on the front flange of the turbine case assembly.

    11. Figure: Install the HP Turbine Case and Vane Assembly on to the Workbench

    Install the HP Turbine Case and Vane Assembly on to the Workbench

    Figure: Remove the Stage 2 HPT Support and Stage 2 Duct Assembly

    Remove the Stage 2 HPT Support and Stage 2 Duct Assembly

    Figure: The Stage 2 HPT Support Assembly, the Stage 2 Duct Support Assembly and the Airseal in the Fixture

    The Stage 2 HPT Support Assembly, the Stage 2 Duct Support Assembly and the Airseal in the Fixture

    Figure: Separate the Stage 2 HPT Duct Support from the Stage 2 HPT Support Assembly

    Separate the Stage 2 HPT Duct Support from the Stage 2 HPT Support Assembly

    Figure: Remove the Stage 2 HPT Duct Segments and the Band Segment

    Remove the Stage 2 HPT Duct Segments and the Band Segment

    Figure: Install the Turn Fixture

    Install the Turn Fixture

    Figure: Remove the Stage 1 HPT Duct Support Set

    Remove the Stage 1 HPT Duct Support Set

    Figure: Remove the Stage 1 HPT Duct Segments and the Stage 1 HPT Segment Assembly

    Remove the Stage 1 HPT Duct Segments and the Stage 1 HPT Segment Assembly

    Figure: Remove the HP Turbine Case Assembly

    Remove the HP Turbine Case Assembly

    Figure: Remove HPT Rotor and Stator Identification Plate

    Remove HPT Rotor and Stator Identification Plate

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to add subtask and figure 10. (19VC053)

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:X222X
Supply Number:CoMat 10-058
Type:sp01
Supply Short Name:CoMat 10-058 PENETRATING OIL
Supply Name:CoMat 10-058 PENETRATING OIL
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:0AM53
Tool Number:IAE 1P16013
Tool Name:IAE 1P16013 Fixture
Manufacturer Code:0AM53
Tool Number:IAE 1P16026
Tool Name:IAE 1P16026 Assembly fixture
Manufacturer Code:0AM53
Tool Number:IAE 1P16064
Tool Name:IAE 1P16064 Puller
Manufacturer Code:0AM53
Tool Number:IAE 1P16158
Tool Name:IAE 1P16158 Fixture
Manufacturer Code:0AM53
Tool Number:IAE 1P16173
Tool Name:IAE 1P16173 Lift sling
Manufacturer Code:0AM53
Tool Number:IAE 1P16184
Tool Name:IAE 1P16184 Puller