TASK 72-41-13-300-011 HPC Rear Shaft - Repair The Knife-Edge Seal Mating Diameter By Plasma Spray, Repair-011(VRS3450)

DMC:V2500-A0-72-41-1301-02A-609A-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 72-41-13-300-011 HPC Rear Shaft - Repair The Knife-Edge Seal Mating Diameter By Plasma Spray, Repair-011(VRS3450)

Effectivity

FIG/ITEM

PART NO.

01-900

2A1386

01-900

2A1967

01-900

2A1990

Material of component

DESCRIPTION

SYMBOL

MATERIAL

HPC shaft assembly

-

Nickel base alloy

General

Price and availability - refer to IAE

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

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Grit blast equipmentLOCALGrit blast equipment
Machining equipmentLOCALMachining equipment
Plasma spray equipmentLOCALPlasma spray equipment
Shot peening equipmentLOCALShot peening equipment
Workshop inspection equipmentLOCALWorkshop inspection equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-097 LINT-FREE GLOVESLOCALCoMat 02-097
CoMat 03-096 PLASMA SPRAY POWDERLOCALCoMat 03-096

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-13-320-059 Machine the Knife-Edge Seal Mating Diameter before Coating

    1. Refer to Figure.

      2. Remove the clinch nuts before machining.

      1. Do the procedure given in Repair 009 VRS6123, TASK 72-41-13-300-009 (REPAIR-009).

      3. Set-up and machine the knife-edge seal mating diameter to the dimensions given in the figure.

      1. Keep the machining to the minimum dimension.

    2. SUBTASK 72-41-13-230-073 Examine the Knife-Edge Seal Mating Diameter for Cracks

    1. Refer to Figure.

      2. Examine the machined area for cracks.

        1. Do the penetrant procedure given in the SPM TASK 70-23-04-230-501.

        1. No cracks permitted.

    3. SUBTASK 72-41-13-380-057 Shot Peen the Knife-Edge Seal Mating Diameter

    1. Refer to Figure.

      2. Shot peen the knife-edge seal mating diameter at an intensity of 6A.

      1. Do the procedure given in the SPM TASK 70-38-13-380-501.

    4. SUBTASK 72-41-13-380-058 Prepare the Knife-Edge Seal Mating Diameter for Plasma Spray Coat

    1. Refer to Figure.

      2. Prepare the surface for coating.

      1. Apply a mask as necessary.

      2. Refer to SPM TASK 70-34-18-380-501.

    5. SUBTASK 72-41-13-340-052 Plasma Spray Coat the Knife-Edge Seal Mating Diameter

    1. Refer to Figure.

      2. Plasma spray the knife-edge seal mating diameter.

        1. Do the procedure given in TASK 70-34-03-340-501.

        2. Apply the plasma spray coating to a sufficient thickness which will permit the final machining.

        3. The maximum thickness of the plasma spray is 0.015 in. (0.341 mm).

        4. No overspray is permitted in the fillet area.

    6. SUBTASK 72-41-13-320-060 Machine the Knife-Edge Seal Mating Diameter after Plasma Spray

    1. Refer to Figure.

      2. Set-up and machine the knife-edge seal mating diameter to the dimensions given in the figure.

      1. The minimum plasma spray coating thickness is 0.003in. (0.076 mm).

      2. The surface finish must be in the limits given in the figure.

    7. SUBTASK 72-41-13-220-146 Examine the Repair

      1. Examine the coated area for chips, cracks, lifted material, coating that is not attached to the base metal and surfaces that show heat cracks.

      1. Do the inspection procedure given in the SPM TASK 70-34-03-340-501.

    8. SUBTASK 72-41-13-350-068 Mark the Part

    1. Refer to Figure.

      2. NOTE

        If the VRS repair number is marked on the part, do not mark the repair number again.

        Make a mark of the repair number VRS3450 adjacent to the part number at the location given in the figure.

        1. Mark the part by the procedures given in the SPM TASK 70-09-00-400-501.

          1. Use the shallow electrolytic etch method.

          1. Electrical contact is permitted only in the area given in the figure.

          2. In this area no burns, pits or selective attack is permitted.

    9. SUBTASK 72-41-13-350-069 Install the Clinch Nuts on the HPC Shaft

    1. Refer to Figure.

      2. Install the clinch nuts.

      1. Do the procedure given in Repair-009 VRS6123, TASK 72-41-13-300-009 (REPAIR-009).

    10. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    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

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X111X
Supply Number:CoMat 02-097
Type:sp01
Supply Short Name:CoMat 02-097 LINT-FREE GLOVES
Supply Name:CoMat 02-097 LINT-FREE GLOVES
Specification Groups:
Doc NumberType
DELETED. USE COMAT 02-100.
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:LOCAL
Supply Number:CoMat 03-096
Type:sp01
Supply Short Name:CoMat 03-096 PLASMA SPRAY POWDER
Supply Name:CoMat 03-096 PLASMA SPRAY POWDER
Specification Groups:
Doc NumberType
AMPERIT 298.442 OR AMPERIT 299.442
Suppliers:
ManufacturerRemarks
LOCAL
IAE15
IE252
Manufacturer Code:LOCAL
Tool Number:Grit blast equipment
Tool Name:Grit blast equipment
Manufacturer Code:LOCAL
Tool Number:Machining equipment
Tool Name:Machining equipment
Manufacturer Code:LOCAL
Tool Number:Plasma spray equipment
Tool Name:Plasma spray equipment
Manufacturer Code:LOCAL
Tool Number:Shot peening equipment
Tool Name:Shot peening equipment
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment