TASK 72-42-33-300-004 No. 4 Bearing Front Seal Support - Replace The No. 4 Bearing Pins, And The Oil Boss And Bearing Pin Hole Helical Coil Inserts, Repair-004 (VRS3080)

DMC:V2500-A0-72-42-3301-00A-920A-C|Issue No:003.00|Issue Date:2021-02-01

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 72-42-33-300-004 No. 4 Bearing Front Seal Support - Replace The No. 4 Bearing Pins, And The Oil Boss And Bearing Pin Hole Helical Coil Inserts, Repair-004 (VRS3080)

Effectivity

FIG/ITEM

PART NO.

01-020

2A3845

01-020

2A4323

Material of component

IAE DESCRIPTION

SYMBOL

MATERIAL

No. 4 bearing seal

Wrought and

support assembly

cast

titanium

base alloy

General

Price and availability - none

Preliminary Requirements

Pre-Conditions

Action/ConditionData Module/Technical Publication
Make sure that all the cleaning and inspection procedures are done before this repair.

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
INSERT - SCREW THREAD96906MS21209F4-104

72-42-33, 01-040

INSERT - SCREW THREAD96906MS21209F5-104

72-42-33, 01-060, Pre SBE 72-0629

INSERT - SCREW THREAD96906MS21209F5-106

72-42-33, 01-060

PIN0AM532A08584

72-42-33, 01-140

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-42-33-350-052 Remove the Damaged or Loose Inserts from the Front Boss and Oil Nozzle Boss

      1. Remove the damaged or loose inserts from the front boss and oil nozzle boss.

      1. Refer to Figure and the SPM TASK 70-35-08-300-501.

    2. SUBTASK 72-42-33-350-053 Install the New Inserts

      1. Install the new inserts and break off the tangs.

      1. Refer to Figure and the SPM TASK 70-35-08-300-501.

    3. SUBTASK 72-42-33-220-078 Examine the Inserts

      1. Examine the inserts.

      1. Refer to Figure.

    4. SUBTASK 72-42-33-350-054 Remove the Damaged or Loose No. 4 Bearing Pin(s), and Examine the Inserts

      1. Remove the damaged or loose No. 4 bearing pin(s).

      1. Refer to Figure.

      2. Examine the inserts. If the inserts are not loose or damaged, proceed to Step.

      1. Refer to Figure.

    5. SUBTASK 72-42-33-350-055 Remove the Damaged or Loose Inserts

      1. Remove the damaged or loose inserts.

      1. Refer to Figure and the SPM TASK 70-35-08-300-501.

    6. SUBTASK 72-42-33-350-056 Install the New Inserts

      1. Install the new inserts and break off the tangs.

      1. Refer to Figure and the SPM TASK 70-35-08-300-501.

    7. SUBTASK 72-42-33-220-079 Examine the Inserts

      1. Examine the inserts.

      1. Refer to Figure.

    8. SUBTASK 72-42-33-350-057 Install the New No. 4 Bearing Pin(s)

      1. Install the new No. 4 bearing pin(s).

      1. Refer to Figure.

      2. Torque the pin(s) to between 125 lbfin to 140 lbfin (14.123 Nm to 15.818 Nm).

      2. Examine the installed No. 4 bearing pin(s).

      1. Refer to Figure.

    9. Figure: No. 4 Bearing Seal Support Assembly Insert Replacement

    No. 4 Bearing Seal Support Assembly Insert Replacement

    No. 4 Bearing Seal Support Assembly Insert Replacement

    No. 4 Bearing Seal Support Assembly Insert Replacement

    No. 4 Bearing Seal Support Assembly Insert Replacement

    Figure: No. 4 Bearing Seal Support Assembly Insert Replacement

    No. 4 Bearing Seal Support Assembly Insert Replacement

    No. 4 Bearing Seal Support Assembly Insert Replacement

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised prerequisites, spares, figure and added figure. (16VC287)

Change Type:

Editorial to add inadvertently removed step. (16VC028)

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:96906
Enterprise Name:MILITARY STANDARDS MANUAL 4120 3-M
BU Name:MILITARY STANDARDS MANUAL 4120 3-M
Street:NONE
City:NONE
Country:USA
Phone Number:NONE
Part Number:2A0858
Part Name:PIN
Manufacturer Code:0AM53
Part Number:MS21209F4-10
Part Name:INSERT - SCREW THREAD
Manufacturer Code:96906
Part Number:MS21209F5-10
Part Name:INSERT - SCREW THREAD
Manufacturer Code:96906