TASK 72-60-29-300-042 Deoiler Impeller - Chromium Plate The Front Hub Inner Diameter, Repair-042 (VRS5667)

DMC:V2500-A0-72-60-2905-01A-647A-C|Issue No:001.00|Issue Date:2013-11-01

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 72-60-29-300-042 Deoiler Impeller - Chromium Plate The Front Hub Inner Diameter, Repair-042 (VRS5667)

Effectivity

FIG/ITEM

PART NO.

01-190

4B7257

01-190

4B7326

Material of component

PART IDENT

SYMBOL

MATERIAL

Deoiler Impellor

Steel AMS 5355

General

Price and availability - none

The practices and processes referred to in the procedure by the TASK number 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
Workshop inspection equipmentLOCALWorkshop inspection equipment
Grinding machineLOCALGrinding machine
Hot oil tankLOCALHot oil tank
Pressure shotpeen systemLOCALPressure shotpeen system
BasketLOCALBasket
Vapor degreaserLOCALVapor degreaser
Process Plating TanksLOCALProcess plating tanks
OvenLOCALOven
Magnifying glassLOCALMagnifying glass
Vibrating marking pencilLOCALVibrating marking pencil

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-030 CAST STEEL SHOT DELETED0AM53CoMat 05-030
CoMat 02-034 METALLIC MASKING TAPE(LEAD FOIL)76381CoMat 02-034
CoMat 02-017 WAXLOCALCoMat 02-017

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-29-320-086 Machine the Deoiler Impellor

    1. Refer to Figure.

      2. Machine the deoiler impellor.

      1. Remove all damage and wear.

      2. Keep removal of material to the minimum necessary to remove the damage.

      3. The preplating diameter must be 2.3646 to 2.3746 in. (60.062 to 60.314 mm), surface rough must be 32 microinch (0.8 micron) before plating.

    2. SUBTASK 72-60-29-210-058 Nital Etch the Front Hub Inner Diameter of the Deoiler Impellor

      1. Do the Nital etch on the deoiler impellor hub front I.D. to find sign of burned metal.

      1. Refer to the SPM TASK 70-21-02-210-501.

      2. Machine the deoiler impellor if there is signs of burnt metal.

      3. Keep the removal of material to the minimum necessary to remove the damage.

    3. SUBTASK 72-60-29-370-071 Do the De-embrittlement Treatment

      1. Put the Deoiler Impellor into oil at 284 deg F (140 deg C) for 2 hours.

      1. Use a hot oil tank.

      2. Do this process as soon as possible in less than 2 hours after each etch.

    4. SUBTASK 72-60-29-380-058 Shot-peen the part

      1. Shot-peen diameter must be plated to an intensity 0.008 to 0.012A.

      1. Refer to the SPM TASK 70-38-04-300-503.

    2. NOTE

      Before shot-peen, properly mask all areas not to be peened. Shot-peening visually check, area to be plated must be completely shot-peened.

    5. SUBTASK 72-60-29-330-071 Chromium Plate the Deoiler Impellor Front Hub Inner Diameter

    1. Refer to Figure.

      2. Mask properly the areas not to be plated.

      3. Do the chromium plating.

      1. Refer to the SPM TASK 70-33-02-330-501.

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

      3. The plating outside of the enclosed area is permissible but must be removed.

    4. Remove the mask.

      5. Clean and dry the deoiler impellor.

      1. Flush with cold water.

      2. Flush with hot water.

      3. Dry with air blast.

    6. SUBTASK 72-60-29-370-072 De-embrittle the Deoiler Impellor

      1. Put the deoiler impellor into the oven at 349 to 399 deg F (176 to 204 deg C) for 5 hours.

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

    7. SUBTASK 72-60-29-220-156 Examine the Plating

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

      1. Plating must have constant color.

      2. No bubbles or sign of burned metal permitted.

    8. SUBTASK 72-60-29-320-087 Machine the part

      1. Machine the part.

      1. The last dimensions of the diameter must be 2.3626 to 2.3638 in. (60.010 to 60.040 mm).

    9. SUBTASK 72-60-29-220-158 Examine the Chromium Plated Area

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

      1. Use a 5X magnifying glass.

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

      2. Measure the thickness of the plating.

      1. Do not accept thickness less than 0.001 in. (0.025 mm), after last machining.

    10. SUBTASK 72-60-29-440-064 Balance Deoiler Impellor

    1. Refer to Figure.

      2. Balance the deoiler impellor.

      1. Dynamic unbalance must not exceed 0.014 Oz.in. (10 g.mm) max each side when supported on diameter A and diameter B.

    11. SUBTASK 72-60-29-350-086 Record the Repair

      1. Vibro-engrave VRS5667 adjacent to the part number.

      2. Remove the metal lifted marking the number.

    12. Figure: Chromium plate the Front Hub Inner Diameter of the Deoiler Impellor

    Chromium plate the Front Hub Inner Diameter of the Deoiler Impellor

Requirements After Job Completion

Follow-On Conditions

NONE
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:76381
Enterprise Name:3M COMPANY
BU Name:3M COMPANY
Department:3M CENTER
City:ST PAUL
State:MN
Zip Code:55144-1000
Country:USA
Phone Number:1-651-733-1110
Fax Number:1-651-733-9973
Internet:www.mmm.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 02-017
Type:sp01
Supply Short Name:CoMat02-017 WAX
Supply Name:CoMat 02-017 WAX
Specification Groups:
Doc NumberType
11429Y/Y MIL-P-23242 OMAT: 228PLATING WAX WILKINS CAMPBELL
JCR-178PLATING WAX WILKINS CAMPBELL
Suppliers:
ManufacturerRemarks
LOCAL
K6835
K4404
Manufacturer Code:76381
Supply Number:CoMat 02-034
Type:sp01
Supply Short Name:CoMat 02-034 METALLIC MASKING TAPE (LEADFOIL)
Supply Name:CoMat 02-034 METALLIC MASKING TAPE(LEAD FOIL)
Specification Groups:
Doc NumberType
PMC 4138-1 THRU -53M LEAD FOIL TAPE 420 (with linner) or 3M LEAD FOIL TAPE 421 (without linner)
Suppliers:
ManufacturerRemarks
76381
Manufacturer Code:0AM53
Supply Number:CoMat 05-030
Type:sp01
Supply Short Name:CoMat 05-030 CAST STEEL SHOT DELETED
Supply Name:CoMat 05-030 CAST STEEL SHOT DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
0AM53
Manufacturer Code:LOCAL
Tool Number:Basket
Tool Name:Basket
Link not Found
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Oven
Tool Name:Oven
Link not Found
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