TASK 72-32-51-300-013 LP Stub Shaft - Apply The Chromium Plating to The Stub Shaft Assembly, Repair-013 (VRS1910)

DMC:V2500-A0-72-32-5104-01A-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 72-32-51-300-013 LP Stub Shaft - Apply The Chromium Plating to The Stub Shaft Assembly, Repair-013 (VRS1910)

Effectivity

FIG/ITEM

PART NO.

01-350

5A6068

01-350

5A0895

Material of component

PART IDENT

IAE

SYMBOL

MATERIAL

Stub shaft assembly

Non-corrosion resistant steel

General

Price and availability - none

NOTE

To identify the consumable materials, refer to the PCI.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Chromium plate equipmentLOCALChromium plate equipment
Magnetic particle inspection equipmentLOCALMagnetic particle inspection equipment
Grinding machineLOCALGrinding machine
Vibrating marking pencilLOCALVibrating marking pencil
IAE 3J12733Fixture0AM53IAE 3J127331

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-020 WATERPROOF SILICON CARBIDELOCALCoMat 05-020
CoMat 05-021 WATERPROOF SILICON CARBIDE44197CoMat 05-021

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-51-330-055 Machine the Diameter C and D

    1. Refer to Figure.

      2. NOTE

        If the surfaces has been previously repaired using chromium plate, remove the old plating completely.

        Grind off the diameter C and D to the specified dimensions.

        1. NOTE

          If the damage is too deep to be removed by the grinding process, grind the snap diameter (Diameter C and Diameter D) to the minimum diameter required before plating the area.

          All galling and previous plating must be removed, but keep metal removal to a minimum.

      3. Make smooth and/or polish to remove all the remaining damages if the damages can't be removed by grinding in Step.

      1. Use portable grinding equipment, abrasive stones, fine file, CoMat 05-020 WATERPROOF SILICON CARBIDE and/or CoMat 05-021 WATERPROOF SILICON CARBIDE.

      2. Maximum depth to remove the remaining damages must not be more than 0.014 in. (0.38 mm).

      3. Width of the blended area is to be more than 10 times the depth.

      4. Total circumferential length of the blended area is not more than 10 per cent of circumferential of the snap diameter.

      5. Remove minimum quantity of material necessary to remove damages.

      6. Surface finish of repair must be same as adjacent area.

      7. Refer to the SPM TASK 70-35-03-300-501.

    2. SUBTASK 72-32-51-370-053 Stress Relieve the Stub Shaft after Plate Stripping

      1. Heat treat the part for one hour at 374 to 410 deg F (190 to 210 deg C).

      1. Refer to the SPM TASK 70-33-02-300-503.

    3. SUBTASK 72-32-51-240-058 Examine the Stub Shaft for Cracks

      1. Magnetic particle examine the ground area.

        1. No cracks permitted.

        1. Refer to TASK 72-32-51-200-000 (INSPECTION-000).

    4. SUBTASK 72-32-51-330-056 Prepare the Stub Shaft for Plating

      1. Clean the part.

      1. Refer to the SPM TASK 70-33-02-300-503.

      2. Mask all the surface except the plating area.

      1. Refer to the SPM TASK 70-38-24-380-501.

    5. SUBTASK 72-32-51-380-056 Alkali Clean the Stub Shaft

      1. Alkali clean the part.

      1. Refer to the SPM TASK 70-33-02-300-503.

    6. SUBTASK 72-32-51-330-057 Chromium Plate the Stub Shaft

      1. Immerse the part in a standard chromium plating solution for sufficient time to achieve the plating thickness of 0.008 in. (0.2 mm) minimum.

      1. Refer to the SPM TASK 70-33-02-300-503.

      2. Treatment after plating.

      1. Refer to the SPM TASK 70-33-02-300-503.

    7. SUBTASK 72-32-51-370-054 Bake the Stub Shaft after Plating

    1. Bake the plated part as soon as possible (not later than 16 hours after plating).

      NOTE

      Hours: 3 hours minimum.
      Temperature: 374 to 410 deg F (190 to 210 deg C).

    8. SUBTASK 72-32-51-220-101 Examine the Stub Shaft after Plating

    1. Refer to Figure.

      2. Visually examine the chromium deposit for pits, visible cracks, burrs and excessive build up on the corners of plating areas.

      1. Refer to TASK 72-32-51-200-000 (INSPECTION-000)..

      2. Dimples which are caused by blended area in step 4.C. are acceptable.

      3. Dimensional check the plating diameter.

      1. Refer to TASK 72-32-51-200-000 (INSPECTION-000).

    9. SUBTASK 72-32-51-320-051 Grind the Stub Shaft after Plating

    1. Refer to Figure and Figure.

      2. Grind the plated area to the specified dimensions with a universal grinder.

      1. Refer to the SPM TASK 70-33-02-300-503.

      3. Make smooth and polish dimples which are caused by blended area in Step.

      2. Refer to the SPM TASK 70-35-03-300-501.

      4. Remove loose material or burrs from chamfer edge.

      3. Refer to the SPM TASK 70-35-03-300-501.

    10. SUBTASK 72-32-51-230-059 Examine the Stub Shaft after Grinding

    1. Refer to Figure.

      2. Visually examine the ground area for pits and cracks.

        1. Refer to TASK 72-32-51-200-000 (INSPECTION-000).

        1. Dimples which are caused by blended area in Step are acceptable.

    3. Dimensional check the ground area.

    11. SUBTASK 72-32-51-230-060 Mark the Repair Number on the Stub Shaft

      1. Write VRS1910, adjacent to the part number.

      1. Use a vibrating marking pencil.

    12. Figure: Repair Details and Dimensions

    Sheet 1

    Legend
    Repair Details and Dimensions

    Sheet 1

    Close

    Figure: Repair Details ad Dimensions

    Sheet 2

    Legend
    Repair Details ad Dimensions

    Sheet 2

    Close

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:44197
Enterprise Name:SAINT-GOBAIN INDUSTRIAL CERAMICS INC.
BU Name:SAINT-GOBAIN ABRASIVES, INC
Street:ONE NEW BOND STREET
P.O. Box:PO BOX 15008
City:WORCESTER
State:MA
Zip Code:01615-0008
Country:USA
Phone Number:1-508-795-5000
Fax Number:1-508-795-2828
Internet:www.saint-gobain-northamerica.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:1E1X8
Supply Number:CoMat 05-020
Type:sp01
Supply Short Name:CoMat 05-020 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-020 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/33 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 320 (ANSI B74.18)
JCR-027 (JAEC REF)
JCR-186 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
LOCAL
K6835
Manufacturer Code:1E1X8
Supply Number:CoMat 05-021
Type:sp01
Supply Short Name:CoMat 05-021 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-021 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/35 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 240 (ANSI B74.18 )
JCR-188 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Link not Found
Link not Found
Manufacturer Code:0AM53
Tool Number:IAE 3J12733
Tool Name:IAE 3J12733Fixture
Manufacturer Code:LOCAL
Tool Number:Magnetic particle inspection equipment
Tool Name:Magnetic particle inspection equipment
Link not Found