TASK 72-41-13-300-018 HPC Rear Shaft - Blend Repair On The Splines, Repair-018 (VRS3518)

DMC:V2500-A0-72-41-1301-03A-649A-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 72-41-13-300-018 HPC Rear Shaft - Blend Repair On The Splines, Repair-018 (VRS3518)

Effectivity

FIG/ITEM

PART NO.

01-900

2A1386

01-900

2A1967

01-900

2A1990

General

This blend repair uses the rotary or manual type of consumable materials. Use only the consumable materials specified for each type of repair.

The maximum rotary equipment is 18,000 RPM.

Use the rotary consumable material only in the sequence given below or damage to the part will result. It is not necessary to use all of the rotary equipment for each repair. When you start with a rotary consumable material, you must use all the subsequent materials through D. For example, if you use the material in B. you must also use all the materials in C. and D.:

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

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

HPC shaft assembly

Nickel alloy

Price and availability - not applicable

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Portablegrinding equipmentLOCALPortable grinding equipment
Shot peening equipmentLOCALShot peening equipment
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment
Standard inspection equipmentLOCALStandard inspection equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-143 STONE, BROWN INDIA (MEDIUM)9K848CoMat 05-143
CoMat 05-144 WHEEL, BEAR-TEX UNIFIED DEBURRING9K848CoMat 05-144
CoMat 05-145 WHEEL, CLOTH BUFFIAE65CoMat 05-145
CoMat 05-146 WHEEL, SILICON CARBIDE ABRASIVE COAT DELETED0AM53CoMat 05-146
CoMat 05-147 WHEEL, RUBBER BONDED GRINDINGLOCALCoMat 05-147
CoMat 05-148 STONE, WHITE ARKANSAS (HARD)06565CoMat 05-148
CoMat 05-149 COMPOUND, BUFFING AND POLISHINGIAE65CoMat 05-149

Spares

NONE

Safety Requirements

CAUTION

USE THIS REPAIR FOR THE DAMAGED PARTS WHICH HAVE LESS THAN THEIR LIFE CYCLE LIMIT. THIS REPAIR WILL NOT EXTEND THE LIFE CYCLE. DO NOT REPAIR THE SHAFT ASSEMBLY THAT HAS A CRACK OR ANY INDICATION THAT IS NOT CLEARLY THE RESULT OF LOCAL DAMAGE SUCH AS DENTS, NICKS, SCRATCHES AND CORROSION PITS. IF CRACKS OR OTHER UNUSUAL CONDITIONS ARE FOUND BY THE PENETRANT TEST OR VISUAL INSPECTION, REJECT THE PART.

Procedure

    1. SUBTASK 72-41-13-350-057-001 Blend the Shaft Assembly Splines (Rotary Method)

      WARNING

      WEAR EYE PROTECTION WHEN YOU OPERATE THE ROTARY EQUIPMENT. DISCHARGE AIR WILL BLOW LOOSE GRIT AND MATERIALS WHICH CAN CAUSE INJURY TO A PERSON.

      1. Blend the surface damage such as dents, nicks, scratches and corrosion pits on the splines.

      1. Refer to Figure requirements.

      2. Use the rotary consumable materials given in the general section.

      3. Make the abrasive coat become soft on the CoMat 05-146 WHEEL, SILICON CARBIDE ABRASIVE COAT DELETED.

        4. Remove the rough and unwanted grit until the wheel surface is smooth before you do the blend repair.

        1. Do not blend the spline root radius and the spline loaded face area.

        2. The surface texture must be 80 AA (2.0 micro m) or smoother.

        3. The finish marks must follow the lay of the original tool marks.

        4. All blends must be smooth and continuous.

        5. The minimum blend length to depth ratio is 100 to 1.

      5. Remove all the lifted material.

        6. Remove only the minimum quantity of material that is necessary to do the repair.

        1. A maximum of ten splines can be repaired with a maximum blended length of 0.500in. (12.7 mm) or less on each spline.

        2. A maximum of five splines can be repaired if the blended length is more than 0.500in. (12.7 mm) on each spline.

        3. The maximum spline blend depth requirements in the repair areas are given in the figure.

        4. All the blend finish marks must follow the lay of the original machining marks.

      7. Break the spline tip edges and end profile edges to the requirements given in the figure.

    2. SUBTASK 72-41-13-350-057-002 Blend the Shaft Assembly Splines (Manual Method)

      1. Blend the surface damage such as dents, nicks, scratches and corrosion pits on the splines.

      1. Refer to Figure requirements.

        1. Do not blend the spline root radius and the spline loaded face area.

        2. The surface texture must be 80 AA (2.0 micro m) or smoother.

        3. The finish marks must follow the lay of the original tool marks.

        4. All blends must be smooth and continuous.

        5. The minimum blend length to depth ratio is 100 to 1.

      3. Remove all the lifted material.

        4. Remove only the minimum quantity of material that is necessary to do the repair.

        1. A maximum of ten splines can be repaired with a maximum blended length of 0.500in. (12.7 mm) or less on each spline.

        2. A maximum of five splines can be repaired if the blended length is more than 0.500in. (12.7 mm) on each spline.

        3. The maximum spline blend depth requirements in the repair areas are given in the figure.

        4. All the blend finish marks must follow the lay of the original machining marks.

      5. Break the spline tip edges and end profile edges to the requirements given in the figure.

    3. SUBTASK 72-41-13-230-057 Fluorescent Penetrant the Repair Areas

      1. Fluorescent penetrant inspect all of the repaired surfaces for cracks.

      1. Refer to Figure requirements.

      2. Do the procedure given in the SPM TASK 70-23-03-230-501 or SPM TASK 70-23-08-230-501.

      3. No cracks permitted.

    4. SUBTASK 72-41-13-220-095 Examine the Repair

      1. Visually examine the repaired splines.

      1. Refer to Figure requirements.

    5. SUBTASK 72-41-13-350-058 Identify the Repair

      1. Mark VRS3518 adjacent to the part number.

      1. Refer to Figure requirements.

      2. Make a permanent mark by the procedures given in the SPM TASK 70-09-00-400-501.

        3. Use the deep electrolytic etch method.

        1. See figure for the electrical contact area.

        2. No burning, pitting or selective attack is permitted from the electrical contact.

    6. Figure: HPC shaft assembly spline blend repair areas

    HPC shaft assembly spline blend repair areas

    Figure: HPC shaft assembly spline blend repair areas

    HPC shaft assembly spline blend repair areas

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:06565
Enterprise Name:SAINT-GOBAIN ABRASIVES
BU Name:SAINT-GOBAIN ABRASIVES
P.O. Box:808
City:TROY
State:NY
Zip Code:12181
Country:USA
Phone Number:1-518-266-2200
Fax Number:1-518-266-2342
Internet:www.saintgobain.com
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:9K848
Enterprise Name:DELETED, SEE CAGE CODE 06565
Manufacturer Code:IAE65
Enterprise Name:DELETED, SEE VENDOR CODE V065V
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:9K848
Supply Number:CoMat 05-143
Type:sp01
Supply Short Name:CoMat 05-143 STONE, BROWN INDIA (MEDIUM)
Supply Name:CoMat 05-143 STONE, BROWN INDIA (MEDIUM)
Specification Groups:
Doc NumberType
MB24 4"x1"x1/2"
Suppliers:
ManufacturerRemarks
9K848
Manufacturer Code:9K848
Supply Number:CoMat 05-144
Type:sp01
Supply Short Name:CoMat 05-144 WHEEL, BEAR-TEX UNIFIED DEBURRING
Supply Name:CoMat 05-144 WHEEL, BEAR-TEX UNIFIED DEBURRING
Specification Groups:
Doc NumberType
58782
Suppliers:
ManufacturerRemarks
9K848
Manufacturer Code:IAE65
Supply Number:CoMat 05-145
Type:sp01
Supply Short Name:CoMat 05-145 WHEEL, CLOTH BUFF
Supply Name:CoMat 05-145 WHEEL, CLOTH BUFF
Specification Groups:
Doc NumberType
86/82 GRAY
Suppliers:
ManufacturerRemarks
IAE65
Manufacturer Code:0AM53
Supply Number:CoMat 05-146
Type:sp01
Supply Short Name:CoMat 05-146 WHEEL, SILICON CARBIDE ABRASIVE COAT DELETED
Supply Name:CoMat 05-146 WHEEL, SILICON CARBIDE ABRASIVE COAT DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
0AM53
Manufacturer Code:LOCAL
Supply Number:CoMat 05-147
Type:sp01
Supply Short Name:CoMat 05-147 WHEEL, RUBBER BONDED GRINDING
Supply Name:CoMat 05-147 WHEEL, RUBBER BONDED GRINDING
Specification Groups:
Doc NumberType
C100-102-CHSC
Suppliers:
ManufacturerRemarks
LOCAL
54916
IE224
Manufacturer Code:06565
Supply Number:CoMat 05-148
Type:sp01
Supply Short Name:CoMat 05-148 STONE, WHITE ARKANSAS (HARD)
Supply Name:CoMat 05-148 STONE, WHITE ARKANSAS (HARD)
Specification Groups:
Doc NumberType
HB 4 - 4"x 2"x 3/4"
Suppliers:
ManufacturerRemarks
06565
Manufacturer Code:V065V
Supply Number:CoMat 05-149
Type:sp01
Supply Short Name:CoMat 05-149 COMPOUND, BUFFING AND POLISHING
Supply Name:CoMat 05-149 COMPOUND, BUFFING AND POLISHING
Specification Groups:
Doc NumberType
No. 1062 WHITE POLISHING COMPOUNDMOCO
Suppliers:
ManufacturerRemarks
V065V
56KR1
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment
Manufacturer Code:LOCAL
Tool Number:Portable grinding equipment
Tool Name:Portablegrinding equipment
Manufacturer Code:LOCAL
Tool Number:Shot peening equipment
Tool Name:Shot peening equipment
Manufacturer Code:LOCAL
Tool Number:Standard inspection equipment
Tool Name:Standard inspection equipment