TASK 72-32-16-300-010 Gearshaft Bearing Housing - Repair The Bearing Bore By Plasma Spray, Repair-010 (VRS1197)

DMC:V2500-A0-72-32-1601-00A-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 72-32-16-300-010 Gearshaft Bearing Housing - Repair The Bearing Bore By Plasma Spray, Repair-010 (VRS1197)

Effectivity

FIG/ITEM

PART NO.

01-150

5A6234

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Gearshaft bearing housing

-

Titanium alloy

General

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

Price and availability - not applicable

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
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment
Abrasive blasting facilityLOCALAbrasive blasting facility
Plasma spray facilityLOCALPlasma spray facility
Grinding machineLOCALGrinding machine
IAE 3J12727 Machining fixture0AM53IAE 3J127271
IAE 3J12728 Diamond wheel0AM53IAE 3J127281
IAE 3J12729 Coating fixture0AM53IAE 3J127291
IAE 3J12730 Masking fixture0AM53IAE 3J127301

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-001 ADHESIVE TAPE (MASKING)LOCALCoMat 02-001
DELETED0AM53CoMat 03-049
CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADELOCALCoMat 05-001

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-16-320-051 Machine the Bearing Bore of the Gearshaft Bearing Housing Assembly

    1. Refer to Figure.

      2. Set up the gearshaft bearing housing assembly on the machine.

      3. Machine the diameter AA and face AB.

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

    2. SUBTASK 72-32-16-220-090 Examine the Bearing Bore of the Gearshaft Bearing Housing Assembly

    1. Refer to Figure.

      2. Measure and record the diameter AA and dimension H.

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

    3. SUBTASK 72-32-16-230-062 Examine the Gearshaft Bearing Housing Assembly for Cracks

      1. Fluorescent penetrant examine the machined area.

      1. Cracks are not permitted.

        Use fluorescent penetrant inspection equipment.

    4. SUBTASK 72-32-16-340-051 Plasma Spray the Bearing Bore of the Gearshaft Bearing Housing Assembly

    1. Refer to Figure.

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

      3. Abrasive blast the bearing bore.

      4. Plasma spray the bearing bore.

      1. Use DELETED.

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

        Use plasma spray facility.

        Plasma spray parameters

        SPRAY GUN

        Type: Metco 7MB

        Nozzle: 704

        Powder Port: No. 5

        Uni-Jet Ring: N/A

        Insulator: 7M 50

        GAS

        Type: Argon

        Pressure: Primary - 100 psi (6.89 bar),

        Flow: Primary - 200 cubic ft/hr, Secondary - 0

        POWER

        Unit: 6MR, 7MR

        Arc Amps: 1.000

        Arc Volts: 45-55

        POWER FEED

        Unit: 3MP or 3MP-DUAL

        Meter Wheel: S

        PRM: 15

        Carrier Gas Flow: 50 cubic ft/hr

        SPRAYING

        Spray Distance: 2.5in. (64 mm)

        Spray Rate: 6 lb/hr (2.72 kg/hr)

      5. Remove masking tape and any over spray.

      1. Use non metallic hand scraper.

    5. SUBTASK 72-32-16-220-091 Examine the Bearing Bore of the Gearshaft Bearing Housing Assembly

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

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

    6. SUBTASK 72-32-16-320-052 Machine the Bearing Bore of the Gearshaft Bearing Housing Assembly

      1. Locate the gearshaft housing assembly on to the fixture, set the fixture to run true.

    2. WARNING

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

      Secure the gearshaft bearing housing assembly on the fixture and machine the coated area.

      GRINDING DATA

      Wheel Type: diamond wheel

      Wheel Speed: 6000 rpm

      Work Speed: 100 rpm

      Coolant: Any general water based grinding fluid

    7. SUBTASK 72-32-16-220-092 Examine the Gearshaft Bearing Housing Assembly

    1. Refer to Figure.

      2. Visually and dimensionally examine the repaired area.

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

    8. Figure: Repair details and dimensions

    Repair details and dimensions

    Figure: Repair details and dimensions

    Repair details and dimensions

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:X111X
Supply Number:CoMat 03-049
Type:sp01
Supply Short Name:DELETED
Supply Name:DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
X111X
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 3J12727
Tool Name:IAE 3J12727 Machining fixture
Manufacturer Code:0AM53
Tool Number:IAE 3J12728
Tool Name:IAE 3J12728 Diamond wheel
Manufacturer Code:0AM53
Tool Number:IAE 3J12729
Tool Name:IAE 3J12729 Coating fixture
Manufacturer Code:0AM53
Tool Number:IAE 3J12730
Tool Name:IAE 3J12730 Masking fixture
Manufacturer Code:LOCAL
Tool Number:Plasma spray facility
Tool Name:Plasma spray facility