TASK 72-60-32-300-005 Angle Gearbox Support - Repair The Pin By Bushing, Repair-005 (VRS5114)

DMC:V2500-A0-72-60-3201-00A-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 72-60-32-300-005 Angle Gearbox Support - Repair The Pin By Bushing, Repair-005 (VRS5114)

Effectivity

FIG/ITEM

PART NO.

01-300

4B0062

01-300

4B0353

01-300

4B0374

Material of component

PART IDENT

IAE

SYMBOL

MATERIAL

Casing

-

Aluminum alloy

Bushing

AMS4152

AA2024-T3

Wrought aluminum base alloy

Pin

-

Steel

General

Price and availability - none

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

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Arbor PressLOCALArbor press
FreezerLOCALFreezer
GlovesLOCALGloves
Magnifying GlassLOCALMagnifying Glass
OvenLOCALOven
Workshop inspection equipmentLOCALWorkshop inspection equipment

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
PIN0AM534P01161

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-32-320-083 Machine the Pin Seat in the Support Gearbox Casing

    1. Refer to Figure and Figure.

      2. Machine bore.

      1. Diameter must be between 0.31338 in. and 0.31260 in. (7.960 mm and 7.940 mm) after removal of pin.

      2. Deleted.

    2. SUBTASK 72-60-32-220-104 Examine the Gearbox Casing

      1. Inspect casing for cracks in the area of the bore.

      1. Use a magnifying glass.

    3. SUBTASK 72-60-32-330-074 Apply the Chromate Conversion Coating

      1. Apply chromate conversion coating to machined surfaces.

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

    4. SUBTASK 72-60-32-320-084 Produce a Bushing

    1. Refer to Figure.

      2. Produce a bushing.

      1. Outside diameter must be between 0.31397 in. and 0.31358 in. (7.975 mm and 7.965 mm).

      2. Deleted.

      3. Apply chromate conversion coating to the machined surfaces.

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

    5. SUBTASK 72-60-32-350-089 Install the Bushing

    1. Refer to Figure and Figure.

      2. WARNING

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

        Increase temperature of casing and/or decrease temperature of bushing.

      1. Use an oven and/or a freezer.

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

      3. Do not decrease temperature of bushing below minus 58 deg F (minus 50 deg C).

      3. NOTE

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

        Remove casing from oven and/or bushing from freezer.

      1. Use protective gloves.

      4. CAUTION

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

        Put bushing into machined bore.

      1. Use an arbor press.

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

    5. Let the parts get the ambient temperature.

    6. SUBTASK 72-60-32-320-085 Machine the Inner Diameters of the Bushing

    1. Refer to Figure and Figure.

      2. Machine inner diameters of bushing.

      1. Dimension must be between 0.19606 in. and 0.19567 in. (4.980 mm and 4.970 mm).

      2. Chamfer where necessary.

      3. Deleted.

    7. SUBTASK 72-60-32-330-075 Apply the Chromate Conversion Coating

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

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

    8. SUBTASK 72-60-32-350-091 Install the New Pin

    1. Refer to Figure.

      2. Install new pin.

      1. Use an arbor press.

      2. Give sufficient back-up support at pin seat area, to prevent casing distortion when you install pin.

    9. SUBTASK 72-60-32-350-092 Record the Repair

    1. Refer to Figure and Figure.

      2. Make a mark VRS5114 adjacent to the part number.

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

    10. Figure: Repair Details And Dimensions

    Sheet 1

    Legend
    Repair Details And Dimensions

    Sheet 1

    Close

    Figure: Repair Details And Dimensions

    Sheet 2

    Legend
    Repair Details And Dimensions

    Sheet 2

    Close

    Figure: Repair Details And Dimensions

    Sheet 3

    Legend
    Repair Details And Dimensions

    Sheet 3

    Close

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:4P0116
Part Name:PIN
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:LOCAL
Tool Number:Gloves
Tool Name:Gloves
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