TASK 72-43-30-300-008 No. 4 Bearing Heatshield - Restore The Front Flange OD By Nickel Plate Or Plasma Spray, Repair-008 (VRS3125)

DMC:V2500-A0-72-43-3002-00A-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 72-43-30-300-008 No. 4 Bearing Heatshield - Restore The Front Flange OD By Nickel Plate Or Plasma Spray, Repair-008 (VRS3125)

Effectivity

FIG/ITEM PART NO.

01-080

2A0890-01

01-080

2A1204-01

Material of component

DESCRIPTION SYMBOL MATERIAL

No. 4 Bearing Heat Shield

-

Nickel alloy

General

Price and availability - refer to IAE

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)00741CoMat 03-089

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-43-30-320-051-A00 Machine the Outside Diameter of the No. 4 Bearing Heat Shield (PN 2A0890-01) before Nickel Plate

      1. Machine the outside diameter before nickel plate.

      1. NOTE

        The diameter can be measured in a free or held condition. All dimensions apply when Surface D is flat by 0.004in. (0.102 mm), Diameter E maintains a clearance envelope of 13.009in. (330.429 mm) diameter, and Diameter F maintains a clearance envelope of 6.196in. (157.378 mm) diameter in a free or held condition. Hold the heat shield only on Surfaces D and G, and Diameters E and F.

        Refer to Figure. Hold the diameter to maximum value.

    2. SUBTASK 72-43-30-320-051-B00 Machine the Outside Diameter of the No. 4 Bearing Heat Shield (PN 2A1204-01) before Nickel Plate

      1. Machine the outside diameter before nickel plate.

      1. NOTE

        The diameter can be measured in a free or held condition. All dimensions apply when Surface D is flat by 0.004in. (0.102 mm), Diameter E maintains a clearance envelope of 13.009in. (330.429 mm) diameter, and Diameter F maintains a clearance envelope of 6.515in. (165.481 mm) diameter in a free or held condition. Hold the heat shield only on Surfaces D and G, and Diameters E and F.

        Refer to Figure. Hold the diameter to maximum value.

    3. SUBTASK 72-43-30-330-051 Nickel Plate the Front Flange Outside Diameter of the No. 4 Bearing Heat Shield

      1. Nickel plate the front flange OD.

      1. Refer to Figure or Figure and TASK 70-33-06-330-501. Apply nickel plate to sufficient thickness to permit finish machining. Plating outside the repair area is permitted but must be removed.

    4. SUBTASK 72-43-30-370-054 Bake after Nickel Plate

      1. Bake the heat shield after nickel plate.

      1. Bake at 360 to 390 deg F (182 to 199 deg C) for three hours.

    5. SUBTASK 72-43-30-320-052-A00 Machine the Outside Diameter of the No. 4 Bearing Heat Shield (PN 2A0890-01) after Nickel Plate

      1. Machine the outside diameter after nickel plate.

      1. NOTE

        The diameter can be measured in a free or held condition. All dimensions apply when Surface D is flat by 0.004in. (0.102 mm), Diameter E maintains a clearance envelope of 13.009in. (330.429 mm) diameter, and Diameter F maintains a clearance envelope of 6.196in. (157.378 mm) diameter in a free or held condition. Hold the heat shield only on Surfaces D and G, and Diameters E and F.

        Refer to Figure.

    6. SUBTASK 72-43-30-320-052-B00 Machine the Outside Diameter of the No. 4 Bearing Heat Shield (PN 2A1204-01) after Nickel Plate

      1. Machine the outside diameter after nickel plate.

      1. NOTE

        The diameter can be measured in a free or held condition. All dimensions apply when Surface D is flat by 0.004in. (0.102 mm), Diameter E maintains a clearance envelope of 13.009in. (330.429 mm) diameter, and Diameter F maintains a clearance envelope of 6.515in. (165.481 mm) diameter in a free or held condition. Hold the heat shield only on Surfaces D and G, and Diameters E and F.

        Refer to Figure.

    7. SUBTASK 72-43-30-220-062 Examine the Repair

      1. Examine the heat shield after nickel plate repair.

      1. Refer to Figure or Figure and TASK 72-43-30-200-000 (INSPECTION-000).

    8. SUBTASK 72-43-30-380-051 Apply a Mask to the Areas not to be Plasma Sprayed

      1. Apply a mask to the areas not to be coated.

    9. SUBTASK 72-43-30-320-053-A00 Machine the Outside Diameter of the No. 4 Bearing Heat Shield (PN 2A0890-01) before Plasma Spray

      1. Machine the outside diameter before plasma spray.

      1. NOTE

        The diameter can be measured in a free or held condition. All dimensions apply when Surface D is flat by 0.004in. (0.102 mm), Diameter E maintains a clearance envelope of 13.009in. (330.429 mm) diameter, and Diameter F maintains a clearance envelope of 6.196in. (157.378 mm) diameter in a free or held condition. Hold the heat shield only on Surfaces D and G, and Diameters E and F.

        Refer to Figure. Hold the diameter to maximum value.

    10. SUBTASK 72-43-30-320-053-B00 Machine the Outside Diameter of the No. 4 Bearing Heat Shield (PN 2A1204-01) before Plasma Spray

      1. Machine the outside diameter before plasma spray.

      1. NOTE

        The diameter can be measured in a free or held condition. All dimensions apply when Surface D is flat by 0.004in. (0.102 mm), Diameter E maintains a clearance envelope of 13.009in. (330.429 mm) diameter, and Diameter F maintains a clearance envelope of 6.515in. (165.481 mm) diameter in a free or held condition. Hold the heat shield only on Surfaces D and G, and Diameters E and F.

        Refer to Figure. Hold the diameter to maximum value.

    11. SUBTASK 72-43-30-380-054 Prepare the Surface of the Front Flange OD

      1. Prepare the surface for coating.

      1. Apply a mask as necessary.

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

    12. SUBTASK 72-43-30-340-051 Plasma Spray the Front Flange Outside Diameter of the No. 4 Bearing Heat Shield

      1. Plasma spray the front flange OD.

      1. Refer to Figure or Figure and TASK 70-34-03-340-501. Use CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5). Make sure you use a sufficient amount to permit finish machining.

    13. SUBTASK 72-43-30-320-054-A00 Machine the Outside Diameter of the No. 4 Bearing Heat Shield (PN 2A0890-01) after Plasma Spray

      1. Machine the outside diameter after plasma spray.

      1. NOTE

        The diameter can be measured in a free or held condition. All dimensions apply when Surface D is flat by 0.004in. (0.102 mm), Diameter E maintains a clearance envelope of 13.009in. (330.429 mm) diameter, and Diameter F maintains a clearance envelope of 6.196in. (157.378 mm) diameter in a free or held condition. Hold the heat shield only on Surfaces D and G, and Diameters E and F.

        Refer to Figure.

    14. SUBTASK 72-43-30-320-054-B00 Machine the Outside Diameter of the No. 4 Bearing Heat Shield (PN 2A1204-01) after Plasma Spray

      1. Machine the outside diameter after plasma spray.

      1. NOTE

        The diameter can be measured in a free or held condition. All dimensions apply when Surface D is flat by 0.004in. (0.102 mm), Diameter E maintains a clearance envelope of 13.009in. (330.429 mm) diameter, and Diameter F maintains a clearance envelope of 6.515in. (165.481 mm) diameter in a free or held condition. Hold the heat shield only on Surfaces D and G, and Diameters E and F.

        Refer to Figure.

    15. SUBTASK 72-43-30-220-063 Examine the Repair

      1. Examine the heat shield after repair.

      1. Refer to Figure or Figure and TASK 72-43-30-200-000 (INSPECTION-000).

    16. 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

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:00741
Enterprise Name:Was BOC GASES
BU Name:DELETED, REFER TO SUPPLIER CODE 46AN7
Manufacturer Code:33870
Supply Number:CoMat 03-089
Type:sp01
Supply Short Name:CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)
Supply Name:CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)
Specification Groups:
Doc NumberType
PWA 1337 (PW REF)NI-109 or NI-970 or AI 1037
Suppliers:
ManufacturerRemarks
33870