TASK 72-32-00-030-011 LPC/Intermediate Case Module - Remove The No. 1 Bearing Support Assembly, Disassembly-011

DMC:V2500-A0-72-32-0000-11A-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 72-32-00-030-011 LPC/Intermediate Case Module - Remove The No. 1 Bearing Support Assembly, Disassembly-011

General

This TASK gives the procedure to remove the No.1 bearing support assembly.

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.

Remove the No.1 bearing support assembly with the fan frame installed in the turnover stand. The procedure for the installation of the fan frame in to the stand is given in TASK 72-32-00-030-005 (DISASSEMBLY-005, CONFIG-001 AND CONFIG-002).

Apply the approved penetrating oil before the removal of threaded parts with an interference fit. 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 removed in this procedure.

NOTE

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
IAE 1J12188 Puller bolt0AM53IAE 1J121881
IAE 1J12507 Guide pin0AM53IAE 1J125071

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-00-030-130-A00 Remove the No. 1 Bearing Support Assembly from the Fan Frame (Pre SBE 72-0391)

    1. Refer to Figure.

    2. Remove the 42 bolts which attach the rear flange of the No. 1 bearing support assembly to the fan frame.

    3. Install the three aligning pins (part of IAE 1J12507 Guide pin 1 off) in to three of the 42 threaded holes in the fan frame flange. The three aligning pins must be installed at approximately 120 degrees apart from each other.

      4. Use the four puller bolts (part of IAE 1J12188 Puller bolt 1 off) to release the No. 1 bearing support from the fan frame.

      1. Install the four puller bolts in to the four threaded holes in the No. 1 bearing support rear flange.

      2. Tighten the four puller bolts equally until the No. 1 bearing support is released from the fan frame.

      3. Remove the puller bolts from the threaded holes in the No. 1 bearing support rear flange.

    5. Lift and remove the No. 1 bearing support assembly from the fan frame. Put the No. 1 bearing support assembly on to the work bench with rear end up.

    6. Remove the two sealing rings from the oil feed tube of the No. 1 bearing support and discard them.

    7. Remove the sealing ring from the groove in the No. 1 bearing support and discard it.

    8. Remove the three aligning pins from the threaded holes in the fan frame.

    2. SUBTASK 72-32-00-030-130-B00 Remove the No. 1 Bearing Support Assembly from the Fan Frame (SBE 72-0391)

      SBE 72-0391: New separate type No. 1 bearing support assembly

    1. Refer to Figure.

    2. Remove the 42 bolts and washers which attach the rear flange of the No. 1 bearing support assembly to the fan frame.

    3. Install the three aligning pins (part of IAE 1J12507 Guide pin 1 off) in to three of the 42 threaded holes in the fan frame flange. The three aligning pins must be installed at approximately 120 degrees apart from each other.

      4. Use the four puller bolts (part of IAE 1J12188 Puller bolt 1 off) to release the No. 1 bearing support from the fan frame.

      1. Install the four puller bolts in to the four threaded holes in the No. 1 bearing support rear flange.

      2. Tighten the four puller bolts equally until the No. 1 bearing support is released from the fan frame.

      3. Remove the puller bolts from the threaded holes in the No. 1 bearing support rear flange.

    5. Lift and remove the No. 1 bearing support assembly from the fan frame. Put the No. 1 bearing support assembly on to the work bench with rear end up.

    6. Remove the two sealing rings from the oil feed tube of the No. 1 bearing support and discard them.

    7. Remove the sealing ring from the groove in the No. 1 bearing support and discard it.

    8. Remove the three aligning pins from the threaded holes in the fan frame.

    3. Figure: Remove the No. 1 bearing support assembly from the fan frame

    Remove the No. 1 bearing support assembly from the fan frame

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:0AM53
Tool Number:IAE 1J12188
Tool Name:IAE 1J12188 Puller bolt
Manufacturer Code:0AM53
Tool Number:IAE 1J12507
Tool Name:IAE 1J12507 Guide pin