TASK 72-60-25-300-006 Fuel Pump Drive Gear Housing - Repair The Bearing Mating Surface By Flanged Bushing, Repair-006 (VRS5051)

DMC:V2500-A0-72-60-2504-00A-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 72-60-25-300-006 Fuel Pump Drive Gear Housing - Repair The Bearing Mating Surface By Flanged Bushing, Repair-006 (VRS5051)

Effectivity

FIG/ITEM

PART NO.

01-210

4B0087

General

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Housing

-

Aluminum alloy

Flanged bushing

-

Wrought aluminum base ally

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. Other consumable materials are given in the SPM.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Arbor PressLOCALArbor press
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment
FreezerLOCALFreezer
IAE 3F10428 Guide pin0AM53IAE 3F10428
IAE 3F10336 Drift, bushing (dia 67)0AM53IAE 3F10336
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
BUSHING - ,(VRS5051)A34604L0008

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-25-350-065 Remove the Studs (3 off)

    1. Refer to Figure.

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

      1. Refer to Repair VRS5047, TASK 72-60-25-300-002.

    2. SUBTASK 72-60-25-320-063 Machine the Bearing Seat of the Fuel Pump Drive Housing

    1. Refer to Figure.

      2. Machine the bearing seat.

        1. The diameter must be between seat 2.9118 in. to 2.9134 in. (73.960 mm to 74.000 mm) FIR in relation to diameter A and surface B.

        1. Remove all damage and wear.

    3. SUBTASK 72-60-25-320-064 Machine the Bearing Mating Surface of the Fuel Pump Drive Housing

    1. Refer to Figure.

      2. Machine the bearing mating surface.

      1. The dimensions must be between 1.4980 in. to 1.4941 in. (38.050 mm to 37.950 mm) after the removal of the damage.

      2. Remove all damage and wear.

    4. SUBTASK 72-60-25-220-070 Examine the Fuel Pump Drive Housing

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

    5. SUBTASK 72-60-25-330-058 Apply the Chromate Conversion Coating

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

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

    6. SUBTASK 72-60-25-350-066 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 in the IAE 3F10336 Drift, bushing (dia 67) 1 off.

      4. WARNING

        DO NOT TOUCH THE 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 MEDICAL ATTENTION IF PAIN OR BLISTERING PERSISTS.

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

      1. Use an Oven and/or a Freezer.

      2. Do not increase the temperature of the housing above 284 deg F (140 deg C). Do not decrease the temperature of the assembled drift and bushing below -58 deg F (-50 deg C).

    5. 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.

      6. CAUTION

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

        Install the flanged bushing into machined bearing seat.

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

    7. Allow the parts to reach ambient temperature.

    8. Remove the drift and guide pins.

    7. SUBTASK 72-60-25-320-065 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 to 70.004 mm) FIR in relation to the Diameter A and Surface B.

        1. Chamfer where necessary.

    8. SUBTASK 72-60-25-320-066 Machine the Flange Surface of the Bushing

    1. Refer to Figure.

      2. Machine the flange surface of the bushing.

      1. The dimensions must be 1.5768 in. to 1.5728 in. (40.050 mm to 39.950 mm) FIR in relation to Surface B.

    9. SUBTASK 72-60-25-330-059 Apply the Chromate Conversion Coating

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

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

    10. SUBTASK 72-60-25-350-067 Install the New Insert

    1. Refer to Figure.

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

      1. Refer to Repair VRS5047, TASK 72-60-25-300-002.

    11. SUBTASK 72-60-25-350-068 Record the Repair

      1. Vibro engrave VRS5051 adjacent to the part number.

      1. Remove the metal lifted by marking. Use Vibrating Marking Pencil.

    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:A3460
Enterprise Name:DELETED, SEE CAGE CODE U0406
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X111X
Enterprise Name:N/A – DELETED CONSUMABLE MATERIAL
Part Number:4L0008
Part Name:BUSHING - ,(VRS5051)
Manufacturer Code:A3460
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:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment
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: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