TASK 72-44-20-300-029 HPT Stage 1 Vane - Repair Wear On The Tab, Repair-029 (VRS3612)

DMC:V2500-A0-72-44-2000-04A-627A-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 72-44-20-300-029 HPT Stage 1 Vane - Repair Wear On The Tab, Repair-029 (VRS3612)

Effectivity

FIG/ITEM

PART NO.

01-240

2A5591

Material of component

PART IDENT

SYMBOL

MATERIAL

Stage 1 HPT vane assembly

-

Cobalt alloy

General

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

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Portablegrinding equipmentLOCALPortable grinding equipment
Austenitic stainless wire brushLOCALAustenitic stainless wire brush

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-243 WELDING FILLER WIRELOCALCoMat 03-243

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-44-20-110-055 Clean the Repair Area of the Stage 1 HPT Vane Assembly

    1. Refer to Figure.

      2. Clean the repair area.

      1. Refer to the SPM TASK 70-11-03-300-503.

    2. SUBTASK 72-44-20-120-054 Abrasive Blast the Repair Area

      CAUTION

      DO NOT ABRASIVE BLAST ON COATING THAT YOU APPLIED BY SPM TASK 70-34-03-340-501 UNLESS SPECIFIED BY VRS3158, TASK 72-44-20-300-018 (72-44-20, REPAIR-018, PAGE 901.

    1. Refer to Figure.

      2. Abrasive blast the repair area.

    3. SUBTASK 72-44-20-310-056 Weld to Build Up the Worn Anti-Rotation Slot of the Stage 1 HPT vane Assembly

    1. Refer to Figure.

      2. Clean the repair area to be weld repaired and 0.100 in. (2.54 mm) beyond the repair area in all directions.

      1. Use an austenitic stainless wire brush.

      3. Weld to build up the anti-rotation slot.

      1. NOTE

        Use small diameter wire to keep heat input to a minimum and to decrease the possibility of cracking because of heat.

        Use CoMat 03-243 WELDING FILLER WIRE and manual gas tungsten (GTAW-MA) method or the manual arc weld (PAW-MA) method.

      2. Refer to the SPM TASK 70-31-13-310-501.

      3. Use weld techniques that keep heat input to a minimum.

    4. SUBTASK 72-44-20-370-053 Stress Relieve the Stage 1 HPT Vane Assembly

      1. NOTE

        You can do the stress relief at the same time as VRS3638 TASK 72-44-20-300-038 (REPAIR-038).

        Stress relieve the vane assembly at 1500 plus or minus 25 deg. F (815.6 plus or minus 14 deg C) for four hours after welding.

      1. Use an argon or a vacuum protective atmosphere.

      2. Do not let the part become cool too quickly.

      3. You can use slow heating and cooling cycles to keep distortion to a minimum.

    5. SUBTASK 72-44-20-320-055 Finish Machine or Blend the Weld Repaired Area of the Stage 1 HPT Vane Assembly

    1. Refer to Figure.

      2. Machine or blend the weld repaired area to the dimensions given in the figure.

      1. If necessary, remove material from the welded side to maintain the minimum dimension, except where blending is specified.

    6. SUBTASK 72-44-20-230-058 Fluorescent Penetrant Inspect the Repaired Area of the Stage 1 HPT Vane Assembly

      1. Fluorescent penetrant inspect the repaired area.

      1. Refer to the SPM TASK 70-23-08-230-501.

    7. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 03-243
Type:sp01
Supply Short Name:CoMat 03-243 WELDING FILLER WIRE
Supply Name:CoMat 03-243 WELDING FILLER WIRE
Specification Groups:
Doc NumberType
HAYNES 188AMS 5801
Suppliers:
ManufacturerRemarks
LOCAL
IE508
0ZDB5
2R602
07098
36346
55596
57965
58401
80357
Manufacturer Code:LOCAL
Tool Number:Austenitic stainless wire brush
Tool Name:Austenitic stainless wire brush
Manufacturer Code:LOCAL
Tool Number:Portable grinding equipment
Tool Name:Portablegrinding equipment