TASK 72-50-53-300-006 Turbine Exhaust Case (TEC) - Replace The No. 5 Bearing Oil Feed Tube, Repair-006 (VRS5390)

DMC:V2500-A0-72-50-5301-00A-920A-C|Issue No:002.00|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 72-50-53-300-006 Turbine Exhaust Case (TEC) - Replace The No. 5 Bearing Oil Feed Tube, Repair-006 (VRS5390)

Effectivity

FIG/ITEM

PART NO.

01-001

4A8014

01-001

4A8025

Material of component

PART IDENT

SYMBOL

MATERIAL

Turbine exhaust case

Corrosion and heat resistant steel

Tube and flange

Corrosion and heat resistant steel

General

Price and availability - none

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

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
Workshop inspection equipmentLOCALWorkshop inspection equipment
Hand toolsLOCALTools, hand
TIG welding equipmentLOCALTIG welding equipment
Hydraulic test pumpLOCALHydraulic test pump
Vibrating marking pencilLOCALVibrating marking pencil
IAE 2F10183 Fixture0AM53IAE 2F101831

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-286 WELDING WIRELOCALCoMat 03-286

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Flange4P80881
Tube4B80461

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-53-350-126 Cut the Oil Feed Tube

    1. Refer to: Figure

    2. Slide the oil feed tube toward the outer wall of the turbine exhaust case.

      3. Cut the outer oil feed tube flange at the existing welding line.

      1. Use hand tools.

    4. Remove the tube from the interior of the casing.

    2. SUBTASK 72-50-53-350-127 Lap the Bearing Compartment Flange

      1. Lap the area of the bearing compartment flange which mates with the oil feed tube flange.

      1. Surface finish must be 32 microin. (0.8 micron).

    3. SUBTASK 72-50-53-310-070 Weld the New Tube

    1. Refer to: Figure

    2. Place the new tube in position inside the strut.

      3. Attach the tube to the bearing compartment flange.

      1. Make sure that a clearance of 0.08in. (2 mm) exist between the tube and the strut heatshield cover.

        Adjust the tube if necessary.

    4. Put the outer flange in the correct position.

      5. Tack weld the components.

      1. Refer to the SPM TASK 70-31-02-310-501.

        Use CoMat 03-286 WELDING WIRE dia 0.05in. (1.2 mm).

      6. Complete weld the components.

      1. Refer to the SPM TASK 70-31-02-310-501.

        Use CoMat 03-286 WELDING WIRE dia 0.05in. (1.2 mm).

        Welding data:

        Current intensity

        45 to 50 A

        Torch type

        HW20

        Torch nozzle

        No. 6

        Argon flow

        8 1/m

        Electrode

        2% thoriated tungsten

        Electrode dia

        0.1in. (2.54 mm)

    4. SUBTASK 72-50-53-220-209 Inspect the Welding Area

      1. Inspect the weld.

      1. Inspect the weld for a good penetration.

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

        Weld again the areas where the weld condition is not satisfactory.

    5. SUBTASK 72-50-53-780-052 Pressure Leak Check the Assembled Tube

    1. Do a pressure leak check of oil feed tube as follows:

    2. Install the IAE 2F10183 Fixture to the oil feed tube.

    3. Connect the hydraulic test pump to the adapter on the outer oil feed tube flange.

    4. Apply oil pressure to the tube. Open the purge valve to bleed off the air. When all the air is vented from the system, close the purge valve and tighten.

    5. Apply an oil pressure of 370 psig (2400 KPa). Hold the pressure for at least 1 minute.

    6. Release the pressure, disconnect the pump and remove the fixture.

    6. SUBTASK 72-50-53-350-128 Record the Repair

      1. Vibro engrave 'VRS5390' adjacent to the part number.

      1. Remove the metal lifted by marking.

    7. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial correction due to conversion

Link not Found
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
Link not Found
Link not Found
Manufacturer Code:LOCAL
Supply Number:CoMat 03-286
Type:sp01
Supply Short Name:CoMat 03-286 WELDING WIRE
Supply Name:CoMat 03-286 WELDING WIRE
Specification Groups:
Doc NumberType
ALLOY SAE 30347 AMS 5680
Suppliers:
ManufacturerRemarks
LOCAL
2R602
58401
Manufacturer Code:LOCAL
Tool Number:Hydraulic test pump
Tool Name:Hydraulic test pump
Manufacturer Code:0AM53
Tool Number:IAE 2F10183
Tool Name:IAE 2F10183 Fixture
Manufacturer Code:LOCAL
Tool Number:TIG welding equipment
Tool Name:TIG welding equipment
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment