TASK 72-60-22-300-009 Starter Drive Gear Housing - Repair The Roller Bearing Bore By Bushing,Repair 009 (VRS5029)

DMC:V2500-A0-72-60-2204-02A-664A-C|Issue No:004.00|Issue Date:2021-05-01

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 72-60-22-300-009 Starter Drive Gear Housing - Repair The Roller Bearing Bore By Bushing,Repair 009 (VRS5029)

Effectivity

FIG/ITEM

PART NO.

01-300

4B0248

01-300A

4B0349

01-300B

4B0371

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Casing

-

Aluminum alloy

Bushing

-

Wrought aluminum base alloy

General

NOTE

Consumable materials are given in the SPM.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Arbor PressLOCALArbor press
FreezerLOCALFreezer
IAE 3F10336 Drift, bushing (dia 67)0AM53IAE 3F103361
Magnifying GlassLOCALMagnifying Glass
OvenLOCALOven
Workshop inspection equipmentLOCALWorkshop inspection equipment

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
BUSHING0AM534L0007

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-22-320-089 Machine the Roller Bearing Bore in the Starter Drive Housing

    1. Refer to Figure.

      2. Machine the roller bearing bore.

      1. The diameter must be between 2.9118 in. to 2.9134 in. (73.960 mm and 74.000 mm) after the removal of the damage.

      2. Deleted.

      3. Blend the drain holes if necessary.

      1. Blend the sharp edges around the drain hole.

    2. SUBTASK 72-60-22-220-120 Examine the Starter Drive Housing

      1. Inspect the housing for cracks in the area of the bearing bore.

      1. Use a magnifying glass.

    3. SUBTASK 72-60-22-330-073 Apply the Chromate Conversion Coating

      1. Apply the chromate conversion coating to the machined surfaces.

      1. Refer to the SPM TASK 70-38-02-300-503.

    4. SUBTASK 72-60-22-350-092 Install the Bushing

    1. Refer to Figure.

    2. CAUTION

      MAKE SURE THAT THE LEAD IN CHAMFER OF THE BUSHING POINTS AWAY FROM THE DRIFT.

      Install the bushing on the IAE IAE 3F10336 Drift, bushing (dia 67) 1 off.

      3. WARNING

        DO NOT TOUCH THE HOT PARTS WITHOUT PROTECTIVE GLOVES.
        HOT PARTS CAN CAUSE REDDENING AND BLISTERING OF THE SKIN IF THE HANDS ARE NOT PROTECTED.
        IMMERSE THE CONTACTED AREA IN COLD WATER FOR 10 MINUTES IF THE SKIN IS BURNED. IMMEDIATELY GET THE MEDICAL ATTENTION IF PAIN OR BLISTERING PERSIST.

        Increase the temperature of the housing and/or decrease the temperature of the assembled drift and bushing.

      1. Use an oven and/or freezer.

      2. Do not increase the temperature of the housing above 284 deg F (140 deg C).

      3. Do not decrease the temperature of the assembled drift and bushing below -58 deg F (-50 deg C).

      4. NOTE

        The difference in temperature between the parts must be 216 deg F (120 deg C).

        Remove the housing from the oven and/or the assembled drift and bushing from the freezer.

      1. Use protective gloves.

      5. CAUTION

        INSTALL BUSING IN MACHINED BORE IMMEDIATELY AFTER REMOVAL FROM FREEZER, OTHERWISE BUSHING CANNOT BE CORRECTLY INSTALLED.

        Install the bushing into machined bore.

      1. Use IAE 3F10336 Drift, bushing (dia 67) 1 off and an arbor press.

      2. Give sufficient back-up support at bushing bore area, to prevent housing distortion when you install the bushing.

    6. Let the parts get the ambient temperature.

    7. Remove the drift.

    5. SUBTASK 72-60-22-320-090 Machine the Inner Diameter of the Bushing

    1. Refer to Figure.

      2. Machine the inner diameter of the bushing.

      1. The dimension must be between 2.7553 in. to 2.7561 in. (69.985 mm and 70.004 mm). Chamfer where necessary.

      2. Deleted.

    6. SUBTASK 72-60-22-330-074 Apply the Chromate Conversion Coating

      1. Apply the chromate conversion coating to the machined surface of the bushing.

    7. SUBTASK 72-60-22-350-093 Identify the Repair

    1. Refer to Figure.

      2. Make a mark VRS5029 adjacent to the part number.

      1. Refer to TASK 70-09-00-400-501 SUBTASK 70-09-00-400-001 .

    8. Figure: Repair Details And Dimensions

    Repair Details And Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Deleted grinding machine from support equipment and procedural steps. (19VF825)

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
Part Number:4L0007
Part Name:BUSHING
Manufacturer Code:0AM53
Manufacturer Code:LOCAL
Tool Number:Arbor press
Tool Name:Arbor Press
Manufacturer Code:LOCAL
Tool Number:Freezer
Tool Name:Freezer
Manufacturer Code:0AM53
Tool Number:IAE 3F10336
Tool Name:IAE 3F10336 Drift, bushing (dia 67)
Manufacturer Code:LOCAL
Tool Number:Magnifying Glass
Tool Name:Magnifying Glass
Manufacturer Code:LOCAL
Tool Number:Oven
Tool Name:Oven
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment