TASK 72-42-31-300-001 No. 4 Bearing Support - Nickel Plate The Intermediate Flange, Repair-001 (VRS3072)

DMC:V2500-A0-72-42-3100-00A-647A-C|Issue No:002.00|Issue Date:2014-11-01

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 72-42-31-300-001 No. 4 Bearing Support - Nickel Plate The Intermediate Flange, Repair-001 (VRS3072)

Effectivity

FIG/ITEM PART NO.

01-010

2A0846

01-010

2A2038

01-010

2A2064

01-010

2A2461

Material of component

PART IDENT

SYMBOL

MATERIAL

No 4 bearing support

Nickel alloy

General

Price and availability - Refer to IAE

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

NOTE

To identify materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Workshop inspection equipmentLOCALWorkshop inspection equipment
Grinding machineLOCALGrinding machine
Magnifying glass, 4xLOCALMagnifying glass, 4x

or greater

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-067 STRIPPABLE COATING71410CoMat 02-067
CoMat 05-106 ABRASIVE STONEK6835CoMat 05-106
CoMat 05-110 EMERY POLISHING PAPER0AM53CoMat 05-110
CoMat 05-120 POLISHING CLOTH06565CoMat 05-120

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-42-31-320-051 Machine the Intermediate Flange Surface(s) of the No. 4 Bearing Support before Nickel Plate

      1. Machine the flange surface(s) of the support.

      1. Refer to Figure.

        Hold to the maximum value.

        The part must be in a held condition.

        All dimensions apply when Surface N is flat by 0.001 in. (0.025 mm) and Diameter M maintains a clearance envelope of 13.350 in. (339.09 mm) in a free or held condition.

        Hold the support only on Surfaces N, L and S and Diameter M.

        If the flange surface(s) were plated before, you can strip them.

        Refer to the SPM TASK 70-33-06-300-503.

    2. SUBTASK 72-42-31-230-052 Examine the No. 4 Bearing Support

      1. Fluorescent penetrant inspect the support.

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

        No cracks are permitted.

    3. SUBTASK 72-42-31-380-052 Apply a Mask to the No. 4 Bearing Support

      1. Apply a mask to the areas of the support that are not to be plated.

    4. SUBTASK 72-42-31-330-051 Nickel Plate the Intermediate Flange of the No. 4 Bearing Support

    1. Refer to Figure.

      2. Nickel plate the flange surface(s) of the support.

      1. Refer to the SPM TASK 70-33-06-300-503.

        Apply nickel plate to a sufficient thickness to permit finish machining.

        Plating outside the repair area is permitted but must be removed. Nickel plate is optional in the radii and full nickel plate is not necessary as shown in the figure.

    3. Remove the mask.

    5. SUBTASK 72-42-31-110-054 Clean the No. 4 Bearing Support

      1. Clean the support.

      1. Flush the support with cold water.

        Flush the support with hot water.

        Dry the support with air blast.

    6. SUBTASK 72-42-31-370-051 Bake after Nickel Plate

      1. Bake the support after nickel plate.

      1. Put the support into a furnace at 360 to 390 deg F (182 to 199 deg C) for three hours.

        Do this process as soon as possible in less than one hour after nickel plate.

    7. SUBTASK 72-42-31-320-052 Machine the Intermediate Flange of the No. 4 Bearing Support after Nickel Plate

    1. Refer to Figure.

      2. Machine the flange support surface(s) of the support after nickel plate.

      1. The minimum plating thickness is 0.002 in. (0.05 mm) after machining.

        The part must be in a held condtion.

        All dimensions apply when surface N is flat by 0.001 in. (0.03 mm) and Diameter M maintains a clearance envelope of 13.350 in. (339.09 mm) in a free or held condition.

        Hold the support only on Surfaces N, L and S and Diameter M.

        Maintain the radii.

        Steps are not permitted.

      3. Blend incomplete plating around the holes.

      1. Refer to Figure for the dimensions.

        Refer to the SPM TASK 70-35-21-350-501.

    8. SUBTASK 72-42-31-220-063 Examine the Repair

      1. Examine the support after nickel plate and finish machining.

      1. Refer to Figure and TASK 72-42-31-200-000 (INSPECTION-000).

        Use a Magnifying glass, 4x to do a visual inspection of the plated area to examine for cracks and adhesion.

    9. SUBTASK 72-42-31-350-058 Identify the Repair

      1. Mark VRS3072 on the repaired No. 4 bearing support adjacent to the part number.

      1. Make a permanent mark by the procedure given in the SPM TASK 70-09-00-400-501.

        Use the vibration peen method.

        Remove high metal caused by marking the number.

    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

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Corrected the SPM reference. (EA13VC080)

Manufacturer Code:06565
Enterprise Name:SAINT-GOBAIN ABRASIVES
BU Name:SAINT-GOBAIN ABRASIVES
P.O. Box:808
City:TROY
State:NY
Zip Code:12181
Country:USA
Phone Number:1-518-266-2200
Fax Number:1-518-266-2342
Internet:www.saintgobain.com
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: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:K6835
Enterprise Name:MED-LAB LTD
BU Name:MED-LAB LTD
Street:COPELAND ST
City:DERBY
Zip Code:DE1 2PU
Country:GREAT BRITAIN
Phone Number:44-1332-349094
Fax Number:44-1332-371237
Email:sales@med-lab.co.uk
Internet:www.med-lab.co.uk
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
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:K6835
Supply Number:CoMat 05-106
Type:sp01
Supply Short Name:CoMat 05-106 ABRASIVE STONE
Supply Name:CoMat 05-106 ABRASIVE STONE
Specification Groups:
Doc NumberType
(SS-S-736/2/26) (A-A-3068/2-26)SQUARE FINE SS-S-736 TYPE II CLASS A1
Suppliers:
ManufacturerRemarks
K6835
KC1D9
Manufacturer Code:X111X
Supply Number:CoMat 05-110
Type:sp01
Supply Short Name:CoMat 05-110 EMERY POLISHING PAPER
Supply Name:CoMat 05-110 EMERY POLISHING PAPER
Specification Groups:
Doc NumberType
DISCONTINUED
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:06565
Supply Number:CoMat 05-120
Type:sp01
Supply Short Name:CoMat 05-120 POLISHING CLOTH
Supply Name:CoMat 05-120 POLISHING CLOTH
Specification Groups:
Doc NumberType
NORTON 4/0 (0.0000)
Suppliers:
ManufacturerRemarks
06565
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment