TASK 72-32-00-030-013 LPC/Intermediate Case Module - Remove The No. 3 Bearing, Internal Gearbox And Support Assembly, Disassembly-013

DMC:V2500-A0-72-32-0000-13A-530A-B|Issue No:001.00|Issue Date:2013-11-01

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 72-32-00-030-013 LPC/Intermediate Case Module - Remove The No. 3 Bearing, Internal Gearbox And Support Assembly, Disassembly-013

General

Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary numbers are used. For the service bulletin alpha variants refer to the IPC.

Apply the approved penetrating oil before the removal of threaded parts and parts with an interference fit. Let the parts soak before removal. For the approved oils and procedures, refer to TASK 70-64-00-640-501

Discard all rubber seal rings removed in this procedure.

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.

The No. 1 strut, which is the top position strut of the fan frame assembly, is identified by the five pressure tubes on the No. 1 strut leading edge.

This TASK gives the procedure to remove the No. 3 bearing, internal gearbox and support assembly.

For other parts of the LP compressor/intermediate case module, refer to TASK 72-32-00-030-000 (DISASSEMBLY-000)

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 1J12024 Special wrench0AM53IAE 1J120241
IAE 1J12326 Vertical sling0AM53IAE 1J123261
IAE 1J12362 Work stand0AM53IAE 1J123621
IAE 1J12188 Puller bolt0AM53IAE 1J121881

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 10-058 PENETRATING OIL0AM53CoMat 10-058

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-00-030-135 Turn the Fan Frame Assembly Vertical with the Front End Up

    1. Refer to Figure.

    2. Make sure that the fan frame assembly is installed horizontally on the turnover stand. Refer to TASK 72-32-00-030-012 (DISASSEMBLY-012).

    3. Release the lock pin from the holes in the handle and the support C of the turnover stand.

    4. Turn the handle to set the fan frame assembly vertical with the front end up.

    5. NOTE

      Make sure that the hole in the support C and on one the eight holes in the handle are aligned. If necessary, turn the handle to make the two holes aligned.

      Install the lock pin into position to lock the handle of the turnover stand.

    2. SUBTASK 72-32-00-030-136 Remove the No. 3 Bearing Internal Gearbox and Support Assembly (Support Assembly) from the Fan Frame Assembly

    1. Refer to Figure, Figure, Figure and Figure.

    2. Install applicable cover sheet to openings XX and YY of the No. 6 strut so that the bolts do not go into the strut, Figure.

    3. NOTE

      Use IAE 1J12024 Special wrench 1 off, to remove the three bolts at the positions Z, Figure.

      Remove the 18 bolts which attach the support assembly and the NF C and NF D brackets to the fan frame assembly, Figure. Remove the NF C and NF D brackets.

      4. Use the four puller bolts (part of IAE 1J12188 Puller bolt 1 off) to release the support assembly from the fan frame assembly, Figure.

      1. Install the four puller bolts into the four threaded holes in the flange of the No. 3 bearing seal support.

      2. Tighten the four puller bolts equally until the support assembly is released from the fan frame assembly.

      3. Remove the puller bolts from the threaded holes in the flange of the support assembly.

      5. Install IAE 1J12326 Vertical sling 1 off to the support assembly, Figure.

      1. Loosen the three nuts on the clamps (part of the vertical sling). Set the clamps not in locked position.

      2. Put the vertical sling onto the support assembly.

      3. Set the clamps in locked position. Tighten the nuts on the clamps.

    6. Attach a hoist to the vertical sling.

    7. Lift the support assembly until it is clear of the fan frame assembly. Figure.

    8. Remove the packing from the support assembly and discard it.

    9. Move the support assembly above IAE 1J12362 Work stand 1 off, Figure.

    10. Make sure that the work stand is vertical and the pin of the work stand is correctly installed to lock the work stand position.

      11. Install the support assembly onto the work stand.

      1. Align the 20 holes in the flange of the support assembly with the holes in the work stand.

      2. Lower the support assembly onto the work stand.

      3. Safety the support assembly with the 20 bolts (part of the work stand). Tighten the bolts.

    12. Remove the hoist from the vertical sling.

      13. Remove the vertical sling from the support assembly.

      1. Loosen the three nuts on the clamps. Set the clamps not in locked position.

      2. Remove the vertical sling.

    14. Remove the seal ring from the support assembly, Figure.

    15. Remove the PTO inner seal ring from the PTO guide tube in the No. 6 strut of the fan frame assembly.

    16. Remove the cover sheet from the openings XX and YY of othe No. 6 strut.

    3. Figure: Install the lock pin into position to lock the handle of the turnover stand

    Install the lock pin into position to lock the handle of the turnover stand

    Figure: Install cover sheet to openings of the fan frame

    Install cover sheet to openings of the fan frame

    Figure: Remove the No. 3 bearing, internal gearbox and support assembly from the fan frame assembly

    Remove the No. 3 bearing, internal gearbox and support assembly from the fan frame assembly

    Figure: Use the puller bolts to release the No. 3 bearing, internal gearbox and support assembly from the fan frame assembly

    Use the puller bolts to release the No. 3 bearing, internal gearbox and support assembly from the fan frame assembly

    Figure: Install the vertical sling to the No. 3 bearing, internal gearbox and support assembly

    Install the vertical sling to the No. 3 bearing, internal gearbox and support assembly

Requirements After Job Completion

Follow-On Conditions

NONE
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: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 1J12024
Tool Name:IAE 1J12024 Special wrench
Manufacturer Code:0AM53
Tool Number:IAE 1J12188
Tool Name:IAE 1J12188 Puller bolt
Manufacturer Code:0AM53
Tool Number:IAE 1J12326
Tool Name:IAE 1J12326 Vertical sling
Manufacturer Code:0AM53
Tool Number:IAE 1J12362
Tool Name:IAE 1J12362 Work stand