TASK 72-50-22-300-023 LPT Stage 4 Vane - Replace The Locating Key, Repair-023 (VRS4064)

DMC:V2500-A0-72-50-2204-01A-920A-C|Issue No:004.00|Issue Date:2016-05-01

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 72-50-22-300-023 LPT Stage 4 Vane - Replace The Locating Key, Repair-023 (VRS4064)

Effectivity

FIG/ITEM

PART NO.

01-550

3A0637CL45

01-550

3A3097

Material of component

DESCRIPTION

RR SYMBOL

MATERIAL

Stage 4 turbine vane locating

MAR-M-247

key

Hastelloy X

General

Price and availability - none

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

NOTE

For more equipment and materials necessary to do this repair refer to the SPM TASK 70-11-01-300-503, SPM TASK 70-23-04-230-501, SPM TASK 72-23-05-230-501, SPM TASK 70-23-08-230-501, SPM TASK 70-31-07-310-501, SPM TASK 70-31-09-310-501, SPM TASK 70-32-03-320-501 and SPM TASK 70-33-06-300-503.
Equivalent equipment may be used.

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
Dial caliperLOCALDial caliper
Radius gage setLOCALRadius gage set
Vernier caliperLOCALVernier caliper
IAE 3M14227 Clamping fixture0AM53IAE 3M142271
IAE 3M14538 Fixture, Grinding0AM53IAE 3M145381

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-151 HIGH TEMP. BRAZING FILLERPOWDERLOCALCoMat 03-151
CoMat 03-227 WHITE STOP OFFD3309CoMat 03-227

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Locating Key3A00021

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-22-326-054 Remove the Worn Locating Key

      1. Machine off the worn locating key.

      2. Electrical discharge machine according to the SPM TASK 70-32-03-320-501 is permitted.

        Refer to Figure.

        Do not remove parent material.

        To get the slot dimensions traces of braze may stay or may be removed.

    2. SUBTASK 72-50-22-110-075 Clean the Turbine Vane

      1. Vapor degrease.

      1. Refer to the SPM TASK 70-11-01-300-503.

    3. SUBTASK 72-50-22-220-121 Examine the Turbine Vane

      1. Dimensionally examine the machined areas.

      1. For dimensions refer to Figure.

        Use radius gage set and dial caliper.

    4. SUBTASK 72-50-22-230-082 Examine the Turbine Vane for Cracks

      1. Do the test for cracks.

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

        No cracks are permitted.

    5. SUBTASK 72-50-22-110-076 Clean the Turbine Vane

      1. Vapor degrease.

      1. Refer to the SPM TASK 70-11-01-300-503.

    6. SUBTASK 72-50-22-330-054 Nickel Plate Machined Surfaces

      1. Nickel plate the connecting surfaces if necessary.

      1. Nickel plate is permitted to make the following braze cycle easier. Refer to the SPM TASK 70-33-06-300-503.

        Make sure that the coating thickness is 0.0001 to 0.0003 in. (0.003 to 0.008 mm).

    7. SUBTASK 72-50-22-310-060 Braze in the New Locating Key

      1. Braze the locating key in position.

      1. Clamp the locating key to prevent movement.

        Spot welding of locating key to facilitate brazing is permitted.

        For braze cycles refer to Figure and to the SPM TASK 70-31-09-310-501.

    8. SUBTASK 72-50-22-110-077 Clean the Turbine Vane

      1. Vapor degrease.

      1. Refer to the SPM TASK 70-11-01-300-503.

    9. SUBTASK 72-50-22-220-122 Do the Post Repair Inspection

      1. Examine the reworked areas for completed braze.

      1. Refer to the SPM TASK 70-31-09-310-501.

        Remove too much braze material.

      2. Dimensionally examine the new locating key.

      1. For finish dimensions refer to Figure.

        Use dial caliper and vernier caliper.

    10. SUBTASK 72-50-22-230-083 Do the Post Repair Inspection for Cracks

      1. Do the test for cracks.

      1. No cracks are permitted.

    11. SUBTASK 72-50-22-220-123 Examine the Honeycomb Braze Condition

      1. Visually examine the honeycomb for completed braze.

      1. Refer to the SPM TASK 70-31-07-310-501 for acceptance standards.

    12. Figure: Replace the locating key of the turbine vane

    Replace the locating key of the turbine vane

    Figure: Replace the locating key of the turbine vane

    Replace the locating key of the turbine vane

    Figure: Braze cycles to braze in the locating key

    Braze cycles to braze in the locating key

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial Change

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:D3309
Enterprise Name:MTU MOTOREN-UND-TURBINE UNION MUNCHEN GMBH
BU Name:MTU MOTOREN-UND-TURBINE UNION MUNCHEN GMBH
Street:DACHAUERSTRASSE 665
P.O. Box:80995
City:MUNCHEN 50
Country:GERMANY
Phone Number:49-89-14890
Fax Number:49-89-1502621
Internet:www.mtu.de
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:LOCAL
Supply Number:CoMat 03-151
Type:sp01
Supply Short Name:CoMat 03-151 HIGH TEMP. BRAZING FILLER POWDER
Supply Name:CoMat 03-151 HIGH TEMP. BRAZING FILLERPOWDER
Specification Groups:
Doc NumberType
OMAT: 3/118NICROBRAZ 130 MSRR9500/114
Suppliers:
ManufacturerRemarks
LOCAL
K6835
63585
IE441
U0163
Manufacturer Code:D3309
Supply Number:CoMat 03-227
Type:sp01
Supply Short Name:CoMat 03-227 WHITE STOP OFF
Supply Name:CoMat 03-227 WHITE STOP OFF
Specification Groups:
Doc NumberType
MTH 316NICROBRAZE WHITE STOP OFF
Suppliers:
ManufacturerRemarks
D3309
Manufacturer Code:LOCAL
Tool Number:Dial caliper
Tool Name:Dial caliper
Manufacturer Code:0AM53
Tool Number:IAE 3M14227
Tool Name:IAE 3M14227 Clamping fixture
Manufacturer Code:0AM53
Tool Number:IAE 3M14538
Tool Name:IAE 3M14538 Fixture, Grinding
Manufacturer Code:LOCAL
Tool Number:Radius gage set
Tool Name:Radius gage set
Manufacturer Code:LOCAL
Tool Number:Vernier caliper
Tool Name:Vernier caliper