TASK 72-60-28-300-013 Generator Drive Gear Housing - Nickel Plate The Mounting Face, Repair-013 (VRS5067)

DMC:V2500-A1-72-60-2804-01A-647A-C|Issue No:002.00|Issue Date:2018-08-01

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

V2500-A1

Common Information

TASK 72-60-28-300-013 Generator Drive Gear Housing - Nickel Plate The Mounting Face, Repair-013 (VRS5067)

Effectivity

FIG/ITEM

PART NO.

01-450

4B0161

01-450

4B0271

01-450

4B0281

01-450

4B0312

01-450

4B0348

01-450

4B0370

Material of component

DESCRIPTION

RR

SYMBOL

MATERIAL

Housing

-

A357 T613 (AMS 4219)

General

Price and availability - none

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

NOTE

  1. To identify the consumable materials refer to PCI.

  2. Consumable materials are given in SPM.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Workshop inspection equipmentLOCALWorkshop inspection equipment
Hot air gunLOCALHot air gun
Grinding machineLOCALGrinding machine
FPI inspection stationLOCALFPI inspection station
BasketLOCALBasket
Vapor degreaserLOCALVapor degreaser
Process Plating TanksLOCALProcess plating tanks
OvenLOCALOven
Magnifying glass, 4xLOCALMagnifying glass, 4x
Vibrating marking pencilLOCALVibrating marking pencil

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-027 HYDROFLUORIC ACIDLOCALCoMat 01-027
CoMat 01-058 NITRIC ACID HNO3LOCALCoMat 01-058
CoMat 01-112 ALKALINE SILICATE DEGREASER23373CoMat 01-112
DELETEDLOCALDELETED
CoMat 02-067 STRIPPABLE COATING71410CoMat 02-067

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
INSERT4P00403

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-28-350-073 Remove the Inserts

    1. Refer to Figure.

      2. For pre Service Bulletin 72-0492 parts, remove the inserts as follows:

        1. Heat the housing adjacent to the insert.

        1. Use the Hot air gun.

        2. Remove the inserts through the holes on reverse side of the housing.

        1. Use a suitable drift.

    3. For post Service Bulletin 72-0492 and 70-0950 parts, remove the inserts. Refer to Repair, VRS5673 TASK 72-60-28-300-028 (Repair-028).

    2. SUBTASK 72-60-28-320-077 Machine the Mounting Face of the Housing

    1. Refer to Figure.

      2. Machine the mounting face.

      1. The dimension must be between 1.6350 in. to 1.6378 in. (41.530 mm to 41.600 mm) in relation to surface D.

      2. Remove all damage and wear. Keep the removal of material to the minimum necessary to remove the damage.

    3. SUBTASK 72-60-28-230-060 Examine the Housing

      1. Do the fluorescent penetrant inspection for cracks.

      1. Refer to the SPM TASK 70-23-01-230-501.

      2. No cracks are permitted.

    4. SUBTASK 72-60-28-330-067 Nickel Plate the Mounting Face of the Housing

    1. Refer to Figure.

      2. Mask the areas of the housing not to be plated.

      3. Do the nickel plating.

      1. Refer to the SPM TASK 70-33-08-300-503.

      2. Plate to a sufficient thickness to permit the machining to the last dimensions.

      3. The plating out of the mounting face is permitted but must be removed.

    4. Remove the mask.

      5. Clean and dry the housing.

      1. Flush with cold water.

      2. Flush with hot water.

      3. Dry with air blast.

    5. SUBTASK 72-60-28-370-068 De-embrittle the Housing

      1. Put the housing into an oven at 241 deg F to 260 deg F (116 deg C to 127 deg C) for 60 to 90 minutes.

      1. Do this process as soon as possible in less than 4 hours after the plating.

    6. SUBTASK 72-60-28-220-106 Examine the Housing

      1. Do the visual inspection of the plating for finish, cracks and adhesion.

      1. Plating must have a constant color.

      2. No circumferential cracks are permitted.

      3. No rough and blistering are permitted.

    7. SUBTASK 72-60-28-320-078 Machine the Mounting Face of the Housing

    1. Refer to Figure.

      2. Machine the mounting face.

      1. The dimension must be between 1.6260 in. to 1.6338 in. (41.300 mm to 41.500).

      2. Chamfer where necessary.

    8. SUBTASK 72-60-28-220-107 Examine the Nickel Plated Area

    1. Refer to Figure.

      2. Do the visual inspection of the plated area for cracks and adhesion.

      2. The natural network crack, emphasized by grinding, is permitted.

      3. Measure the thickness of the plating.

      1. Do not accept thickness less than 0.0006 in. (0.015 mm) after the last machining.

    9. SUBTASK 72-60-28-350-074 Install the New Inserts

    1. Refer to Figure.

      2. For pre Service Bulletin 72-0492 parts, install the inserts as follows:

        1. Verify fit.

        1. Verify that tight fit exists between the outer diameter of the new insert and the corresponding hole in the housing.

        2. Heat the housing adjacent to the hole.

        1. Use the Hot air gun.

        3. Drift in the new insert.

        1. Use a suitable drift.

    3. For post Service Bulletin 72-0492 and 70-0950 parts, install the inserts. Refer to Repair, VRS5673 TASK 72-60-28-300-028 (Repair-028).

    10. SUBTASK 72-60-28-350-075 Record the Repair

      1. Vibro-engrave VRS5067 adjacent to the part number.

      1. Remove the metal lifted by marking the number.

    11. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to update information of pre and post SB parts. (17VF827)

Change Type:

Deleted CoMat 01-343. (Editorial)

Link not Found
Manufacturer Code:23373
Enterprise Name:CHEMETALL OAKITE
BU Name:CHEMETALL OAKITE
Street:16961 KNOTT AVENUE
City:LA MIRADA
State:CA
Zip Code:90638
Country:USA
Phone Number:1-714-739-2821, 1-800-331-1197
Fax Number:1-714-670-6480
Internet:www.oakite.com
Manufacturer Code:71410
Enterprise Name:HENKEL CORPORATION (WAS: TURCO PRODUCTS, INC)
BU Name:HENKEL CORPORATION (WAS: TURCO PRODUCTS, INC)
Street:32100 STEPHENSON HIGHWAY
City:MADISON HEIGHTS
State:MI
Zip Code:48071
Country:USA
Phone Number:1-248-583-9300
Fax Number:1-248-583-2976
Internet:www.aerospace.henkel.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:LOCAL
Supply Number:CoMat 01-027
Type:sp01
Supply Short Name:CoMat 01-027 HYDROFLUORIC ACID
Supply Name:CoMat 01-027 HYDROFLUORIC ACID
Specification Groups:
Doc NumberType
OMAT: 172 (RR REF)COMMERCIAL GRADE 30% W/W HF MIL-A-24641
JCR-044 (JAEC REF)COMMERCIAL GRADE 30% W/W HF MIL-A-24641
MTH 177 (38%-40%) (MTU REF)COMMERCIAL GRADE 30% W/W HF MIL-A-24641
Suppliers:
ManufacturerRemarks
LOCAL
K6835
70657
Manufacturer Code:LOCAL
Supply Number:CoMat 01-058
Type:sp01
Supply Short Name:CoMat 01-058 NITRIC ACID HNO3
Supply Name:CoMat 01-058 NITRIC ACID HNO3
Specification Groups:
Doc NumberType
OMAT:1/158 (RR REF)S.G 1.42
MTH 178 (MTU REF)S.G 1.42
Suppliers:
ManufacturerRemarks
LOCAL
K6835
24853
U1185
Manufacturer Code:23373
Supply Number:CoMat 01-112
Type:sp01
Supply Short Name:CoMat 01-112 ALKALINE SILICATE DEGREASER
Supply Name:CoMat 01-112 ALKALINE SILICATE DEGREASER
Specification Groups:
Doc NumberType
OMAT: 167 (RR REF)ARDROX ORTHOSIL F2
Suppliers:
ManufacturerRemarks
23373
37127
B1082
IE108
IE206
IE243
IE244
K6858
C1308
F3082
Manufacturer Code:71410
Supply Number:CoMat 02-067
Type:sp01
Supply Short Name:CoMat 02-067 STRIPPABLE COATING
Supply Name:CoMat 02-067 STRIPPABLE COATING
Specification Groups:
Doc NumberType
TURCO 5580-G PMC 1835
Suppliers:
ManufacturerRemarks
71410
Manufacturer Code:LOCAL
Supply Number:DELETED
Type:sp01
Supply Short Name:DELETED
Supply Name:DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:LOCAL
Tool Number:Basket
Tool Name:Basket
Link not Found
Link not Found
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Oven
Tool Name:Oven
Manufacturer Code:LOCAL
Tool Number:Process plating tanks
Tool Name:Process Plating Tanks
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment