TASK 72-50-00-030-001-C00 LP Turbine (LPT) And Turbine Exhaust Case (TEC) Unit - Disassemble The TEC From The LPT Module, Disassembly-001

DMC:V2500-A5-72-50-0000-00A-530A-B|Issue No:002.00|Issue Date:2018-08-01

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-A5

Common Information

TASK 72-50-00-030-001-C00 LP Turbine (LPT) And Turbine Exhaust Case (TEC) Unit - Disassemble The TEC From The LPT Module, Disassembly-001

General

Refer to TASK 72-50-10-030-001 (DISASSEMBLY-001) 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 the SPM TASK 70-64-00-640-501.

Discard all rubber seal rings, cotter pins and keywashers removed in this procedure.

Refer to TASK 72-50-00-990-501 (DESCRIPTION AND OPERATION-001) for a sectional view of the LP turbine module.

NOTE

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
IAE 1F10016 Mechanical wrench0AM53IAE 1F100161
IAE 1F10026 Hydraulic hand pump0AM53IAE 1F100261
IAE 1F10035 Hydraulic Removal puller0AM53IAE 1F100351
IAE 1F10038 Torque wrench0AM53IAE 1F100381
IAE 1F10039 Anti-torque adapter0AM53IAE 1F100391
IAE 1F10040 Anchor wrench plate0AM53IAE 1F100401
IAE 1F10073 remove/installation fixture0AM53IAE 1F100731
IAE 1F10178 Storage and Turnover adapter0AM53IAE 1F101781
IAE 1P16374 Wrench support0AM53IAE 1P163741
IAE 1P16377 Guide support0AM53IAE 1P163771
IAE 1P16624 Slide Puller0AM53IAE 1P16624

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-00-030-083 Remove the Rear Lock Nut

    1. NOTE

      If the removal of the No. 5 bearing inner race and the No. 5 bearing seal spacers is necessary continue with this SUBTASK. If the removal of these two parts is not necessary, continue with Step.

      Refer to Figure.

    2. Disengage the retaining ring from the rear lock nut. Remove the retaining ring with the locking ring from the rear lock nut.

    3. Attach the IAE 1P16374 Wrench support 1 off to the inner rear flange of the turbine exhaust case.

    4. Install the IAE 1F10038 Torque wrench 1 off through the wrench support. Engage the torque wrench with the rear lock nut of the LP turbine shaft.

    5. Install the IAE 1F10039 Anti-torque adapter 1 off through the torque wrench. Lock the anti-torque adapter to the LP turbine shaft.

    6. Install the IAE 1F10016 Mechanical wrench 1 off to the torque wrench. Safety the anti-torque adapter to the mechanical wrench with the IAE 1F10040 Anchor wrench plate 1 off.

    7. Operate the mechanical wrench to release the rear lock nut.

      8. Remove the tools from the engine as follows:

      1. Remove the anchor wrench plate and the mechanical wrench.

      2. Disengage the lock mechanism of the anti-torque adapter and remove the adapter.

      3. Remove the torque wrench.

      4. Remove the wrench support.

    9. Remove the rear lock nut of the LP turbine shaft.

    2. SUBTASK 72-50-00-030-084 Disconnect the No. 5 Bearing Pressure Tube Assembly

    1. Refer to Figure

    2. Remove the two nuts and bolts which attaches the bracket to the No. 5 bearing pressure tube and to the inner support of the turbine exhaust case.

    3. Remove the two nuts and two bolts which attaches the bracket to the external flange of the turbine exhaust case.

    4. Remove the nut and bolt which attaches the bracket to the clamp and loop support. Remove the bracket.

    5. Remove the two nuts and bolts which attaches the bracket to the inner support of the turbine exhaust case. Remove the bracket.

    6. Loosen the coupling nut and remove the pressure tube.

    3. SUBTASK 72-50-00-030-085 Remove the No. 5 Bearing Nozzle

    1. Refer to Figure

    2. Remove the nipple and packing from the No. 5 bearing compartment. Discard the packing.

    3. Remove the two bolts and key washers which attach the No. 5 Bearing Packing Transfer Tube to the No. 5 Bearing Nozzle.

    4. Install the IAE 1P16624 Slide Puller 1 off into No. 5 Bearing Packing Transfer Tube.

    5. Move the knocker puller rearwards quickly and hit the handle to remove the No. 5 Bearing Packing Transfer Tube from the No. 5 Bearing Nozzle.

    6. Remove the No. 5 Bearing Packing Transfer Tube and the three packings from the No. 5 Bearing Nozzle. Discard the packings.

    7. Remove the two bolts which attach the No. 5 Bearing Nozzle.

    8. Remove the No. 5 Bearing Nozzle and packing. Discard the packing.

    4. SUBTASK 72-50-00-030-086 Install the Guide Support to the LP Turbine Shaft

    1. Refer to Figure

    2. Install the IAE 1P16377 Guide support 1 off through the inner diameter of the LP turbine shaft. Use a applicable webbing sling.

    3. Make sure that the centering diameter of the guide support is installed correctly to the LP turbine shaft. Turn clockwise the screw at the rear end of the guide support to safety the guide support to the LP turbine shaft.

    5. SUBTASK 72-50-00-030-087 Install the Removal/Installation Fixture to the Turbine Exhaust Case

    1. Refer to Figure

    2. Attach a hoist equipment to the upper supports of the IAE 1F10073 remove/installation fixture 1 off.

    3. Install the remove/installation fixture to the rear flange of the turbine exhaust case. Attach the remove/installation fixture with 13 bolts and washers. Tighten the bolts.

    6. SUBTASK 72-50-00-030-088 Remove the Turbine Exhaust Case from the LP Turbine case

    1. 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 LP TURBINE CASE/TURBINE EXHAUST CASE FLANGE AND/OR THE BOLTS CAN BE DAMAGED.

      Remove the 114 bolts, washers, nuts and the 16 brackets from the turbine exhaust case and from the LP turbine case.

    2. Turn the jack-screw (part of IAE 1F10073 remove/installation fixture) clockwise to release the turbine exhaust case from the LP turbine case.

    3. Move the turbine exhaust case carefully upwards on the guide support.

    4. Remove the turbine exhaust case from the guide support and install it to the IAE 1F10178 Storage and Turnover adapter 1 off.

    7. SUBTASK 72-50-00-030-089-A00 Remove the No. 5 Bearing and the No. 5 Bearing Seal Spacers (Pre SBE 72-0165)

    1. Refer to Figure

    2. Make sure that the rear lock nut is removed. Install the IAE 1F10035 Hydraulic Removal puller 1 off to the rear face of the LP turbine shaft. Engage the jaws of the puller with the grooves of the rear No. 5 bearing seal spacer.

    3. Connect the IAE 1F10026 Hydraulic hand pump 1 off to the puller.

    4. Operate the hydraulic pump until the inner race and the seal spacer are free of the LP turbine shaft. Remove the front seal spacer.

    5. Disconnect the hydraulic pump from the puller.

    6. Release the jaws of the puller and remove the No. 5 bearing inner race and seal spacer.

    7. Remove the seal from the LP turbine shaft.

    8. Remove the seal spacer from the LP turbine shaft.

    8. SUBTASK 72-50-00-030-089-B00 Remove the No. 5 Bearing and the No. 5 Bearing Seal Spacers (SBE 72-0165)

    1. Refer to Figure

    2. SBE 72-0165: Replace the No. 5 bearing seal spacer with a spacer incorporating fool-proof installation features

    3. Make sure that the rear lock nut is removed. Install the IAE 1F10035 Hydraulic Removal puller 1 off to the rear face of the LP turbine shaft. Engage the jaws of the puller with the grooves of the rear No. 5 bearing seal spacer.

    4. Connect the IAE 1F10026 Hydraulic hand pump 1 off to the puller.

    5. Operate the hydraulic pump until the inner race and the seal spacer are free of the LP turbine shaft.

    6. Disconnect the hydraulic pump from the puller.

    7. Release the jaws of the puller and remove the No. 5 bearing race and seal spacer.

    8. Remove the seal from the LP turbine shaft.

    9. Remove the seal spacer from the LP turbine shaft.

    9. Figure: Remove the Turbine Shaft Rear Lock Nut

    Remove the Turbine Shaft Rear Lock Nut

    Figure: Pre SBE 72-0165: Remove the No. 5 Bearing Inner Race and the No. 5 Bearing Seal Spacers

    Sheet 1

    Legend
    Pre SBE 72-0165: Remove the No. 5 Bearing Inner Race and the No. 5 Bearing Seal Spacers

    Sheet 1

    Close

    Figure: SBE 72-0165: Remove the No. 5 Bearing Inner Race and the No. 5 Bearing Seal Spacers

    Sheet 2

    Legend
    SBE 72-0165: Remove the No. 5 Bearing Inner Race and the No. 5 Bearing Seal Spacers

    Sheet 2

    Close

    Figure: Pressure Tube of No. 5 Bearing

    Pressure Tube of No. 5 Bearing

    Figure: Remove the No. 5 Bearing Nozzle

    Remove the No. 5 Bearing Nozzle

    Figure: Install the Guide Support

    Install the Guide Support

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to add new tool for removing the No. 5 bearing transfer tube. (16VC251)

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:0AM53
Tool Number:IAE 1F10016
Tool Name:IAE 1F10016 Mechanical wrench
Manufacturer Code:0AM53
Tool Number:IAE 1F10026
Tool Name:IAE 1F10026 Hydraulic hand pump
Manufacturer Code:0AM53
Tool Number:IAE 1F10035
Tool Name:IAE 1F10035 Hydraulic Removal puller
Manufacturer Code:0AM53
Tool Number:IAE 1F10038
Tool Name:IAE 1F10038 Torque wrench
Manufacturer Code:0AM53
Tool Number:IAE 1F10039
Tool Name:IAE 1F10039 Anti-torque adapter
Manufacturer Code:0AM53
Tool Number:IAE 1F10040
Tool Name:IAE 1F10040 Anchor wrench plate
Manufacturer Code:0AM53
Tool Number:IAE 1F10073
Tool Name:IAE 1F10073 remove/installation fixture
Manufacturer Code:0AM53
Tool Number:IAE 1F10178
Tool Name:IAE 1F10178 Storage and Turnover adapter
Manufacturer Code:0AM53
Tool Number:IAE 1P16374
Tool Name:IAE 1P16374 Wrench support
Manufacturer Code:0AM53
Tool Number:IAE 1P16377
Tool Name:IAE 1P16377 Guide support
Manufacturer Code:0AM53
Tool Number:IAE 1P16624
Tool Name:IAE 1P16624 Slide Puller