TASK 72-50-24-300-056 LPT Inner Diffuser Duct Support Ring - Weld Repair Front Faces, Repair-056 (VRS4499)

DMC:V2500-A0-72-50-2403-03A-627A-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 72-50-24-300-056 LPT Inner Diffuser Duct Support Ring - Weld Repair Front Faces, Repair-056 (VRS4499)

Effectivity

FIG/ITEM

PART NO.

01-170

3A2523

Material of component

PART IDENT

IAE SYMBOL

MATERIAL

Support ring assembly

C263

General

Price and availability - none

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

NOTE

For equipment and materials neceassary to do this repair refer to the SPM TASK 70-11-34-300-503, SPM TASK 70-23-05-230-501, SPM TASK 70-31-13-310-501 and SPM TASK 70-37-00-370-501.
Equivalent equipment may be used.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Turning latheLOCALTurning lathe
Grinding machineLOCALGrinding machine

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-184 WELDING FILLER WIRE, NICKELLOCALCoMat 03-184

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-24-320-074 Remove the Coating

    1. Refer to Figure.

    2. Remove the wear protective coating in area A1.

    3. Remove the old coating fully. Refer to VRS4309 TASK 72-50-24-300-039 (REPAIR-039).

    4. Remove the wear protective coating in area A2.

    5. Remove the old coating fully. Refer to VRS4466 TASK 72-50-24-300-053 (REPAIR-053).

    2. SUBTASK 72-50-24-110-161 Clean the Worn Surfaces before Welding

    1. Clean the areas to be welded.

    2. Use silicon carbide rag or equivalent.

    3. SUBTASK 72-50-24-110-162 Clean the Support Ring Assembly

    1. Aqueous degrease.

    2. Refer to the SPM TASK 70-11-34-300-503.

    4. SUBTASK 72-50-24-310-073 Weld Repair the Support Ring Assembly

    1. Refer to Figure.

    2. Gas tungsten arc weld the front faces area A3.

    3. Refer to the SPM TASK 70-31-13-310-501. Use CoMat 03-184 WELDING FILLER WIRE, NICKEL. Make sure that there is sufficient material to do last machining. To prevent distortion, several weld passes should be made. Prevent too much temperature build-up.

    5. SUBTASK 72-50-24-320-075 Machine the Welded Area

    1. Refer to Figure.

    2. Machine the welded areas.

    3. Use turning lathe or grinding machine.

    6. SUBTASK 72-50-24-370-068 Heat Treatment after Weld Repair

    1. Heat treat the support ring assembly.

    2. Refer to the SPM TASK 70-37-00-370-501. Put the part in an oven for eight hours at 1450 to 1500 deg F (788 to 816 deg C). Use argon or vacuum. Cooling rate equivalent to air cooling.

    7. SUBTASK 72-50-24-230-121 Examine the Welded Areas for Cracks

    1. Do the test for cracks.

    2. Refer to the SPM TASK 70-23-05-230-501. Use medium sensivity level. No cracks are permitted.

    8. SUBTASK 72-50-24-220-228 Examine the Machined Areas

    1. Refer to Figure.

    2. Examine dimensionally.

    9. SUBTASK 72-50-24-350-099 Do the Post Repair

    1. Restore the wear protective coating.

    2. Refer to VRS4309 TASK 72-50-24-300-039 (REPAIR-039).

    3. Restore the wear protective coating.

    4. Refer to VRS4466 TASK 72-50-24-300-053 (REPAIR-053).

    10. 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
Change Type:

Editorial correction due to conversion

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:0XPV7
Supply Number:CoMat 03-184
Type:sp01
Supply Short Name:CoMat 03-184 WELDING FILLER WIRE, NICKEL
Supply Name:CoMat 03-184 WELDING FILLER WIRE, NICKEL
Specification Groups:
Doc NumberType
MSRR9500/16C-263
OMAT:3/62C-263
Suppliers:
ManufacturerRemarks
0XPV7
28553
2R602
80357
IE306
K6970
Link not Found
Manufacturer Code:LOCAL
Tool Number:Turning lathe
Tool Name:Turning lathe