TASK 72-32-05-300-003 PTO Center Bearing Housing - Repair The Bearing Bore By Plasma Spray, Repair-003 (VRS1186)

DMC:V2500-A0-72-32-0501-00A-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 72-32-05-300-003 PTO Center Bearing Housing - Repair The Bearing Bore By Plasma Spray, Repair-003 (VRS1186)

Effectivity

FIG/ITEM

PART NO.

ASSY

01-300

5A1184

A

01-300

5A1433

B

Material of component

IAE

DESCRIPTION

SYMBOL

MATERIAL

Center bearing housing

-

Titanium alloy

General

Price and availability - not applicable

The practice and processes referred to in the procedure by the TASK number are in the SPP.

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Abrasive blasting facilityLOCALAbrasive blasting facility
Plasma spray facilityLOCALPlasma spray facility
Grinding machineLOCALGrinding machine
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment
IAE 3J12723 Machining fixture0AM53IAE 3J127231
IAE 3J12724 Diamond wheel0AM53IAE 3J127241
IAE 3J12725 Coating fixture0AM53IAE 3J127251
IAE 3J12726 TBD0AM53IAE 3J127261
IAE 3J12820 Masking fixture0AM53IAE 3J128201

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-001 ADHESIVE TAPE (MASKING)LOCALCoMat 02-001
CoMat 03-302 METAL SPRAYING POWDER,WC/CoLOCALCoMat 03-302
CoMat 03-320 METAL SPRAYING POWDER,WC/CoLOCALCoMat 03-320
CoMat 03-321 METAL SPRAYING POWDER,WC/CoLOCALCoMat 03-321
CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADELOCALCoMat 05-001

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-05-320-051 Machine the Bearing Bore of the Center Bearing Housing Assembly

    1. Refer to Figure and Figure.

    2. Set up center bearing housing assembly on machine.

      3. Machine the diameter A and face B.

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

    2. SUBTASK 72-32-05-220-067 Examine the Bearing Bore of the Center Bearing Housing Assembly

    1. Refer to Figure and Figure.

    2. Measure and record the diameter A, dimension H.

    3. SUBTASK 72-32-05-230-055 Examine the Center Bearing Housing Assembly for Cracks

      1. Fluorescent penetrant examine machined area.

      1. No cracks are permitted.

      2. Refer to the SPM TASK 70-23-05-230-501.

    4. SUBTASK 72-32-05-340-051 Plasma Spray the Bearing Bore of the Center Bearing Housing Assembly

    1. Refer to Figure and Figure.

      2. Apply masking tape to the areas which are not to be given plasma spray.

      3. Abrasive blast the bearing bore (Area AR).

      2. Refer to the SPM TASK 70-34-01-340-501.

      4. Plasma spray area AR of the bearing bore.

      2. Refer to the SPM TASK 70-34-01-340-501.

        Plasma spray parameters

        SPRAY GUN

        Type:

        Metco 7MB

        Nozzle:

        704

        Powder Port:

        No.5

        Uni-Jet Ring:

        N/A

        Insulator:

        7M 50

        GAS

        Pressure - Primary, psi:

        100

        bars:

        6.89

        Secondary, psi:

        -

        bars:

        -

        Flow - Primary:

        200

        Secondary

        0

        POWER

        Unit:

        6MR, 7MR

        Aro Amps:

        1.000

        Arc Volts:

        45-55

        POWDER FEED

        Unit: 3MP or 3MP-DUAL

        Meter wheel:

        S

        PRM:

        15

        Carrier Gas Flow

        50

        SPRAYING

        Spray Distance, inches:

        2.5

        mm.

        64

        Spray rate, lb/hr:

        6

        kg/hr:

        2.72

      5. Remove masking tape and any over spray.

      1. Use non metallic hand scraper.

    5. SUBTASK 72-32-05-220-068 Examine the Bearing Bore of the Center Bearing Housing Assembly

      1. Examine the bearing bore for adhesion, chipping and separation.

      1. Refer to the SPM TASK 70-34-01-340-501.

    6. SUBTASK 72-32-05-340-052 Machine the Bearing Bore of the Center Bearing Housing Assembly

    1. Refer to Figure and Figure.

      2. Locate the center bearing housing assembly on fixture, set fixture to run true.

      1. Use grinding machine.

      3. WARNING

        TITANIUM COMPONENT LIGHT CUTS AND EXCESS COOLANT SHOULD BE USED DURING THE GRINDING OPERATION TO PREVENT OVER HEATING OF THE COMPONENT.

        Secure the center bearing housing assembly on fixture, grind the coated area.

      1. Plasma spray coat thickness is 0.004 to 0.059 in. (0.10 to 0.15 mm) after finish machine.

        GRINDING DATA

        Wheel Type:

        diamond wheel

        Wheel Speed:

        6000 rpm

        Work Speed

        100 rpm

        Coolant:

        Any general water based grinding fluid

    7. SUBTASK 72-32-05-220-069Examine the Center Bearing Housing Assembly

    1. Refer to Figure and Figure.

      2. Visually and dimensionally examine the repaired areas.

      1. Refer to the SPM TASK 70-34-01-340-501.

    8. Figure: Repair details and dimensions (Assembly A)

    Sheet 1

    Legend
    Repair details and dimensions (Assembly A)

    Sheet 1

    Close

    Figure: Repair details and dimensions (Assembly B)

    Sheet 2

    Legend
    Repair details and dimensions (Assembly B)

    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:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 02-001
Type:sp01
Supply Short Name:CoMat 02-001 ADHESIVE TAPE (MASKING)
Supply Name:CoMat 02-001 ADHESIVE TAPE (MASKING)
Specification Groups:
Doc NumberType
OMAT: 230 (RR REF)ZINC OXIDE AT142
JCR-197 (JAEC REF)ZINC OXIDE AT142
Suppliers:
ManufacturerRemarks
LOCAL
K6835
U0415
Manufacturer Code:LOCAL
Supply Number:CoMat 03-302
Type:sp01
Supply Short Name:CoMat 03-302 METAL SPRAYING POWDER, WC/Co
Supply Name:CoMat 03-302 METAL SPRAYING POWDER,WC/Co
Specification Groups:
Doc NumberType
PAC 200S MSRR 9507/1
OMAT: 3/114E
Suppliers:
ManufacturerRemarks
LOCAL
56923
IE200
IE390
K6835
Manufacturer Code:LOCAL
Supply Number:CoMat 03-320
Type:sp01
Supply Short Name:CoMat 03-320 METAL SPRAYING POWDER, WC/Co
Supply Name:CoMat 03-320 METAL SPRAYING POWDER,WC/Co
Specification Groups:
Doc NumberType
MSRR9507/1METCO 73F-NS-2
OMAT:3/114C
Suppliers:
ManufacturerRemarks
LOCAL
39918
56923
IE103
IE195
IE200
K1030
K6835
Manufacturer Code:LOCAL
Supply Number:CoMat 03-321
Type:sp01
Supply Short Name:CoMat 03-321 METAL SPRAYING POWDER, WC/Co
Supply Name:CoMat 03-321 METAL SPRAYING POWDER,WC/Co
Specification Groups:
Doc NumberType
MSRR9507/1AMPERIT 526.350
OMAT:3/114F
Suppliers:
ManufacturerRemarks
LOCAL
IAE15
IE200
IE239
IE252
K6835
Manufacturer Code:LOCAL
Supply Number:CoMat 05-001
Type:sp01
Supply Short Name:CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADE
Supply Name:CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADE
Specification Groups:
Doc NumberType
Use one of the CoMat 05-001 letter suffix alternatives.
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:LOCAL
Tool Number:Abrasive blasting facility
Tool Name:Abrasive blasting facility
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment
Link not Found
Manufacturer Code:0AM53
Tool Number:IAE 3J12723
Tool Name:IAE 3J12723 Machining fixture
Manufacturer Code:0AM53
Tool Number:IAE 3J12724
Tool Name:IAE 3J12724 Diamond wheel
Manufacturer Code:0AM53
Tool Number:IAE 3J12725
Tool Name:IAE 3J12725 Coating fixture
Manufacturer Code:0AM53
Tool Number:IAE 3J12726
Tool Name:IAE 3J12726 TBD
Manufacturer Code:0AM53
Tool Number:IAE 3J12820
Tool Name:IAE 3J12820 Masking fixture
Manufacturer Code:LOCAL
Tool Number:Plasma spray facility
Tool Name:Plasma spray facility