TASK 72-50-24-300-030 LPT Stage 3 Inner Air Seal Ring - Plasma Spray The Diameter, Repair-030 (VRS4136)

DMC:V2500-A0-72-50-2404-01A-609A-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 72-50-24-300-030 LPT Stage 3 Inner Air Seal Ring - Plasma Spray The Diameter, Repair-030 (VRS4136)

Effectivity

FIG/ITEM

PART NO.

01-250

3A0961

01-250

3A1566

Material of component

PART IDENT

SYMBOL

MATERIAL

Stage 3 airseal ring

2.4650.7

General

Price and availability - none

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

Repair the diameter DIA 1 or the diameter DIA 2. Use the applicable repair possibility of this VRS. Do not machine both diameters at the same time. If necessary plasma spray repair both diameters, then first make a complete repair of diameter DIA 2. Use the undamaged sections of DIA 1 (between the support ring keys wear traces) as a datum. After this diameter DIA 1 can be repaired, use diameter DIA 2 as a datum.

NOTE

For more equipment and materials necessary to do this repair, refer to the SPM TASK 70-09-00-400-501, SPM TASK 70-11-34-300-503, SPM TASK 70-23-05-230-501 and SPM TASK 70-34-03-340-501.
Equivalent equipment may be used.

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-047 TAPE, HEAT REFLECTIVE52152CoMat 02-047
CoMat 02-050 HIGH TEMPERATURE GLASS CLOTH TAPE76381CoMat 02-050
CoMat 03-096 PLASMA SPRAY POWDERLOCALCoMat 03-096
CoMat 05-046 ALUMINUM OXIDE GRIT62596CoMat 05-046

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-24-325-080 Machine the Diameter

      NOTE

      Remove the old coating fully, if the diameter was plasma sprayed before. Do not remove the coating from both diameters at the same time. If dimeter DIA 2 was plasma sprayed before, the coating in area A2 must be fully removed. Refer to Figure.

      1. Machine the diameters DIA 1 or DIA 2.

      1. Refer to Figure or Figure.

        Remove old coating or damage fully.

        Keep material removal to the minimum to remove old coating or damage.

    2. SUBTASK 72-50-24-220-150 Examine Machined Areas

      1. Examine dimensionally.

      1. Refer to Figure for dimensions.

    3. SUBTASK 72-50-24-230-088 Examine the Machined Areas for Cracks

      1. Do the test for cracks.

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

        No cracks are permitted.

    4. SUBTASK 72-50-24-110-112 Clean the Airseal Ring

      1. Aqueous degrease.

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

    5. SUBTASK 72-50-24-340-084 Prepare Surfaces for the Plasma Spray Procedure

      1. Mask the areas A3.

      1. Make sure that the surfaces have full protection.

        Refer to Figure or Figure.

      2. Grit blast the area A1.

      1. Surface texture must be 120 to 200 microinch RMS (3.0 to 5.0 micrometer Ra).

        Refer to Figure or Fig. 72-50-24-51and the SPM TASK 70-34-03-340-501.

      3. Replace the masking if necessary.

      1. Replace the damaged masking.

        Do not touch or bring unwanted material on the blasted area.

    6. SUBTASK 72-50-24-340-085 Plasma Spray the Prepared Surfaces

      NOTE

      It is not permitted to spray over existing coating on diameter DIA 2 when diameter DIA 1 is repaired.

      1. Plasma spray the area A1.

      1. Overspray in area A2 is permitted if it was blasted before.

        Refer to Figure or Figure.

        Make sure that there is sufficient material sprayed on to do final machining.

        Refer to the SPM TASK 70-34-03-340-501.

    7. SUBTASK 72-50-24-340-086 Remove the Protection from the Masked Areas

      1. Remove the masking.

      1. Remove all the tape.

    8. SUBTASK 72-50-24-110-122 Clean the Airseal Ring

      1. Aqueous degrease.

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

    9. SUBTASK 72-50-24-325-081 Machine the Coated Area

      1. Machine the coated area.

      1. Refer to Figure or Figure and the SPM TASK 70-34-03-340-501.

      2. Remove all the overspray from the radius at diameter DIA 2.

      1. Machine to remove the overspray.

        Refer to Figure or Figure.

    10. SUBTASK 72-50-24-110-123 Clean the Airseal Ring

      1. Aqueous degrease.

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

    11. SUBTASK 72-50-24-220-151 Do the Post Repair Inspection

      1. Examine machined areas dimensionally.

      1. Refer to Figure or Figure.

      2. Examine coating visually.

      1. Refer to the SPM TASK 70-34-03-340-501.

    12. SUBTASK 72-50-24-350-075 Make a Mark to Identify the Repair

      1. Vibropeen VRS4136 and applicable beehive symbol adjacent to the part number.

      1. Refer to the SPM TASK 70-09-00-400-501.

    13. Figure: Plasma spray the diameter DIA 2 of the stage 3 airseal ring assembly

    Plasma spray the diameter DIA 2 of the stage 3 airseal ring assembly

    Figure: Plasma spray the diameter DIA 2 of the stage 3 airseal ring assembly

    Plasma spray the diameter DIA 2 of the stage 3 airseal ring assembly

    Figure: Plasma spray the diameter DIA 1 of the stage 3 airseal ring assembly

    Plasma spray the diameter DIA 1 of the stage 3 airseal ring assembly

    Figure: Plasma spray the diameter DIA 1 of the stage 3 airseal ring assembly

    Plasma spray the diameter DIA 1 of the stage 3 airseal ring assembly

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:52152
Enterprise Name:3M COMPANY
BU Name:3M CENTER
Department:INDUSTRIAL TAPE AND SPECIALTIES DIV.
Street:BUILDING 220-7W-03
City:ST. PAUL
State:MN
Zip Code:55144-1000
Country:USA
Phone Number:1-651-733-1110, 1-800-362-3550, 1-800-223-7427
Fax Number:1-651-737-4380
Internet:www.mmm.com, www.3m.com
Manufacturer Code:62596
Enterprise Name:MICRO ABRASIVES CORPORATION
BU Name:MICRO ABRASIVES CORPORATION
Street:720 SOUTHAMPTON RD
P.O. Box:669
City:WESTFIELD
State:MA
Zip Code:01085-0669
Country:USA
Phone Number:1-413-562-3641
Fax Number:1-413-562-7409
Internet:www.microgrit.com
Manufacturer Code:76381
Enterprise Name:3M COMPANY
BU Name:3M COMPANY
Department:3M CENTER
City:ST PAUL
State:MN
Zip Code:55144-1000
Country:USA
Phone Number:1-651-733-1110
Fax Number:1-651-733-9973
Internet:www.mmm.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X222X
Supply Number:CoMat 02-047
Type:sp01
Supply Short Name:CoMat 02-047 TAPE, HEAT REFLECTIVE
Supply Name:CoMat 02-047 TAPE, HEAT REFLECTIVE
Specification Groups:
Doc NumberType
If CoMat 02- 047 is specified with no suffix, use one of the CoMat 02-047 letter suffix alternative materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:X222X
Supply Number:CoMat 02-050
Type:sp01
Supply Short Name:CoMat 02-050 HIGH TEMPERATURE GLASS CLOTH TAPE
Supply Name:CoMat 02-050 HIGH TEMPERATURE GLASS CLOTH TAPE
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Supply Number:CoMat 03-096
Type:sp01
Supply Short Name:CoMat 03-096 PLASMA SPRAY POWDER
Supply Name:CoMat 03-096 PLASMA SPRAY POWDER
Specification Groups:
Doc NumberType
AMPERIT 298.442 OR AMPERIT 299.442
Suppliers:
ManufacturerRemarks
LOCAL
IAE15
IE252
Manufacturer Code:62596
Supply Number:CoMat 05-046
Type:sp01
Supply Short Name:CoMat 05-046 ALUMINUM OXIDE GRIT
Supply Name:CoMat 05-046 ALUMINUM OXIDE GRIT
Specification Groups:
Doc NumberType
ALUMINUM OXIDE NO. 60
Suppliers:
ManufacturerRemarks
62596