TASK 72-60-42-300-007 Angle Gearbox Radial Gearshaft Support - Repair The Bearing Mating Surface By Flanged Bushing, Repair-007 (VRS5091)

DMC:V2500-A0-72-60-4204-00A-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 72-60-42-300-007 Angle Gearbox Radial Gearshaft Support - Repair The Bearing Mating Surface By Flanged Bushing, Repair-007 (VRS5091)

Effectivity

FIG/ITEM

PART NO.

01-230

4B0211

4B0272

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Support

-

Aluminium alloy

Flanged bushing

-

Wrought aluminium base alloy

General

Price and availability - none

The practices and processes referred to in the procedure by the TASK numbers are in the SPM.

NOTE

To identify the consumable materials refer to the PCI.

NOTE

Other consumable materials are given in the SPM

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Arbor PressLOCALArbor press
FPI Inspection stationLOCALFPI Inspection station
FreezerLOCALFreezer
IAE 3F10340 Drift, Bushing (dia 88)0AM53IAE 3F103401
IAE 3F10428 Guide pin0AM53IAE 3F104281
Magnifying Glass, 5xLOCALMagnifying Glass, 5x
OvenLOCALOven
Vibrating Marking PencilLOCALVibrating Marking Pencil

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-001 SOLVENT, DELETEDX111XCoMat 01-001

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Flanged bushingLOCAL4L0033

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-42-350-066 Remove the Studs/Lock Rings (4 off)

    1. Refer to Figure.

      2. Remove the lock rings and the studs in the bearing mating surface.

      1. Refer to Repair VRS5089 TASK 72-60-42-300-004.

    2. SUBTASK 72-60-42-320-070 Machine the Bearing Seat in the Radial Gear Support

    1. Refer to Figure.

      2. Machine the bearing seat.

      1. The diameter must be between 3.6992 in. to 3.7008 in. (93.960 mm to 94.000 mm). FIR in relation to surface A and diameter B.

      2. Remove all damage and wear.

      3. Deleted.

    3. SUBTASK 72-60-42-320-071 Machine the Bearing Mating Surface in the Radial Gear Support

    1. Refer to Figure.

      2. Machine the bearing mating surface.

      1. The dimensions must be between 2.3209 in. to 2.3248 in. (58.950 mm to 59.050 mm).

      2. Remove all damage and wear.

      3. Deleted.

    4. SUBTASK 72-60-42-220-094 Examine the Radial Gearshaft Support

      1. Inspect the support for crack in the area of the bearing seat.

    5. SUBTASK 72-60-42-330-061 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.

    6. SUBTASK 72-60-42-350-067 Install the Flanged Bushing

    1. Refer to Figure.

      2. Install the guide pins.

      1. Put IAE 3F10428 Guide pin 1 off in threaded hole in bearing mating surface adjacent to machined bearing seat.

    3. Install the bushing on the IAE 3F10340 Drift, Bushing (dia 88) 1 off.

      4. 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 PERSISTS.

        Increase the temperature of the support and/or degrease the temperature of the assembled drift and bushing.

      1. Use an oven and/or a freezer.

    5. NOTE

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

      NOTE

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

      NOTE

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

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

      6. CAUTION

        INSTALL BUSHING IN MACHINED BORE IMMEDIATELY AFTER REMOVAL FROM FREEZER; OHERWISE BUSHING CANNOT BE CORRECTLY INSTALLED.

        Install the flanged bushing into machined bearing seat.

      1. Use IAE 3F10340 Drift, Bushing (dia 88) 1 off and an arbor press.

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

    7. Allow the parts to reach ambient temperature.

    8. Remove the drift and the guide pins.

    7. SUBTASK 72-60-42-350-068 Install the New Studs/Lock Rings

    1. Refer to Figure.

      2. Install the new studs and the new lock rings.

      1. Refer to Repair VRS5089 TASK 72-60-42-300-004.

      3. Do the touch up treatment where the chromate conversion coating has been damaged by new lock rings installation.

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

    8. SUBTASK 72-60-42-350-069 Record the Repair

      1. Vibro-engrave VRS5091 adjacent to the part number.

      1. Remove the metal lifted by marking.

    9. SUBTASK 72-60-42-320-072 Machine the Inner Diameter of the Flanged Bushing

    1. Refer to Figure.

      2. Machine the inner diameter of the bushing.

      1. The dimensions must be between 3.5426 in. to 3.5435 in (89.982 mm to 90.004 mm). FIR in relation to surface A and diameter B. Chamfer where necessary.

      2. Deleted.

    10. SUBTASK 72-60-42-320-073 Machine the Flange Surface of the Bushing

    1. Refer to Figure.

      2. Machine the flange surface of the bushing.

      1. The dimensions must be 2.3976 in. to 2.4055 in. (60.900 mm to 61.100 mm). FIR in relation to surface A.

      2. Deleted.

    11. SUBTASK 72-60-42-330-062 Apply the Chromate Conversion Coating

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

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

    12. Figure: Repair The Bearing Mating Surface

    Repair The Bearing Mating Surface

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
Manufacturer Code:X111X
Enterprise Name:N/A – DELETED CONSUMABLE MATERIAL
Link not Found
Manufacturer Code:X111X
Supply Number:CoMat 01-001
Type:sp01
Supply Short Name:CoMat 01-001 SOLVENT, DELETED
Supply Name:CoMat 01-001 SOLVENT, DELETED
Specification Groups:
Doc NumberType
wiring harnesses. Where CoMat 01‐001 is specified to clean mechanical components, use one or more of the solvents that SPM TASK 70‐11‐26‐300‐503 specifies as applicable.DELETED. Where CoMat 01‐001 is specified to clean electrical contacts or wiring harnesses, use one or more of the solvents that SPM TASK 70‐11‐57‐110‐501 specifies to clean electrical contacts or
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:LOCAL
Tool Number:Arbor press
Tool Name:Arbor Press
Manufacturer Code:LOCAL
Tool Number:FPI Inspection station
Tool Name:FPI Inspection station
Manufacturer Code:LOCAL
Tool Number:Freezer
Tool Name:Freezer
Manufacturer Code:0AM53
Tool Number:IAE 3F10340
Tool Name:IAE 3F10340 Drift, Bushing (dia 88)
Manufacturer Code:0AM53
Tool Number:IAE 3F10428
Tool Name:IAE 3F10428 Guide pin
Manufacturer Code:LOCAL
Tool Number:Magnifying Glass, 5x
Tool Name:Magnifying Glass, 5x
Manufacturer Code:LOCAL
Tool Number:Oven
Tool Name:Oven
Manufacturer Code:LOCAL
Tool Number:Vibrating Marking Pencil
Tool Name:Vibrating Marking Pencil