TASK 72-32-83-300-013 LPC Rear Case - Replace The Abradable Rubber, Repair-013 (VRS1397)

DMC:V2500-A0-72-32-8340-00A-920A-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 72-32-83-300-013 LPC Rear Case - Replace The Abradable Rubber, Repair-013 (VRS1397)

Effectivity

FIG/ITEM

PART NO.

01-650

5W2037

01-650

5W2055

Material of component

PART IDENT

SYMBOL

MATERIAL

LPC rear case assembly

-

2.2Al-1.5Mg-1.1Ni-1.1Fe Aluminum

General

Price and availability - none

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

For the method to clean the parts, refer to TASK 72-32-83-100-000 (CLEANING-000).

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
OvenLOCALOven
Hardness tester (durometer)LOCALHardness tester (durometer)
IAE 3J12775 Bond test fixture0AM53IAE 3J127751
IAE 3J12785 Inspection stand0AM53IAE 3J127851
IAE 3J13513 Fixture, rubber moulding0AM53IAE 3J135131
IAE 3J13155 Filler injector0AM53IAE 3J131551
IAE 3J12791 Inspection stand0AM53IAE 3J127911

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-076 METHYL ETHYL KETONELOCALCoMat 01-076
CoMat 02-005 ADHESIVE TAPE (MASKING)LOCALCoMat 02-005
CoMat 02-099 LINT-FREE CLOTHLOCALCoMat 02-099
CoMat 05-050 SILICON CARBIDE GRIT1E1X8CoMat 05-050
CoMat 07-028 CHROMATE CONVERSION COATING FOR ALUMINUMLOCALCoMat 07-028
CoMat 08-032 PRIMERLOCALCoMat 08-032
CoMat 08-037 DELETEDLOCALCoMat 08-037
CoMat 08-038 SILICONE RUBBER COMPOUND64101CoMat 08-038
CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)LOCALCoMat 06-064

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-83-350-060 Remove the Damaged Abradable Seal

      1. Remove the damaged abradable seal by scraper. Take care not to damage the part.

      1. Use bamboo spatula or similar.

    2. SUBTASK 72-32-83-220-240 Examine the Repaired Area

      1. Fluorescent penetrant examine the repair area.

    3. SUBTASK 72-32-83-380-070 Surface Treat the Repair Area

      1. Clean the repaired area.

      2. Do a chemical touch up to the surface by a brush (if required).

    4. Air dry for 15 to 30 minutes.

    4. SUBTASK 72-32-83-110-091 Clean the Repair Area

    1. Refer to Figure.

      2. Apply masking tape to the area which do not require the silicone rubber compound.

      3. Apply a dry abrasive blast to the mold area, air pressure 70 psig (5 kg/sqcm) at a distance of 6 in. (152 mm) minimum from air nozzle to the part.

    4. NOTE

      After cleaning, the component must not be touched by hand and must be covered by craft paper, to prevent contamination.

      Remove any residual abrasive by vacuuming.

    5. SUBTASK 72-32-83-380-054 Apply Primer to the Surface after Cleaning

    1. Refer to Figure.

      2. NOTE

        Store the primer in small containers for single usage only. The remaining primer in the glass bottle after coating must not be used.

        Within 30 minutes of cleaning, apply a 0.0001 in. (0.003 mm) coat of primer to the mold surface using unsized cheese cloth.

      2. Refer to the SPM TASK 70-36-06-360-501.

      3. Cure at 77 deg F (25 deg C) minimum and a relative humidity of 50 percent minimum for 2 hours minimum.

      1. Refer to the SPM TASK 70-36-06-360-501.

    6. SUBTASK 72-32-83-360-051 Mix the Silicone Rubber Compound

      1. CAUTION

        THIS COMPOUND HAS A GUARANTEED SHELF LIFE OF NOT LESS THAN SIX MONTHS FROM DATE OF SHIPMENT. A SHELF LIFE EXTENSION OF ONE MONTH MAY BE PERMITTED ON COMPOUND PROVIDED VISCOSITY CHECK IS WITHIN LIMITS SUCH AS BELOW.
        VISCOSITY AT 70 TO 80 DEG F (22.7 TO 25.3 DEG C).
        COMPOUND AS RECEIVED: 3000 - 5000 POISES.
        COMPOUND MIXED WITH CURING AGENT: 1300 - 3500 POISES.
        COMPOUND AS RECEIVED HAS BEEN STORED AT TEMPERATURE NOT HIGHER THAN 90 DEG F (32 DEG C). COMPOUND WHICH HAS BEEN STORED UNDER THE ABOVE CONDITIONS FOR MORE THAN 6 MONTHS SHALL BE DISCARDED.

        Mix silicone rubber compound at 70 to 80 deg F (21 to 27 deg C) for 30 to 40 minutes.

      2. Refer to the SPM TASK 70-36-06-360-501.

    2. NOTE

      Rubber and catalyst in each kit are chemically matched and should not be mixed with components of other kits.

      Mixing ratio - Rubber 95.5 to 100.5 parts by weight, Catalyst 9.8 to 10.2 parts by weight.

      3. Degas from mixture by applying a vacuum of 25 to 50 mmHg for 30 minutes minimum.

      1. Refer to the SPM TASK 70-36-06-360-501.

    7. SUBTASK 72-32-83-360-052 Mold the Silicone Rubber Compound

      1. Attach the component to the molding fixture.

      2. Put the degased silicone rubber compound into the injector.

      3. Pour silicone rubber compound in to the component with fixture using the injector.

      1. Until silicone rubber comes out from the vent port use an injection pressure of 60 psi (4.22 Kg/sqcm).

      2. When silicone rubber comes out from the vent port use an injection pressure of 30 psi (2.11 Kg/sqcm).

    8. SUBTASK 72-32-83-360-053 Cure the Silicone Rubber Compound

    1. Remove the injector.

      2. Put the LPC rear case assembly in the oven.

      1. Use batch oven.

      3. Cure at 290 to 310 deg F (143 to 154 deg C) for one hour.

      1. Refer to the SPM TASK 70-36-06-360-501.

    4. Remove the component from the molding fixture.

      5. Cure the component removed at 390 to 410 deg F (199 to 210 deg C) for one hour out of the molding fixture.

      1. Refer to the SPM TASK 70-36-06-360-501.

    9. SUBTASK 72-32-83-220-085 Examine the Repaired Area

    1. Refer to Figure and Figure.

      2. Visually examine the repaired area.

      1. Cracks are not permitted.

      2. Bubbles are not permitted.

      3. Foreign inclusions are not permitted.

      4. Peelings are not permitted.

      5. Refer to Figure.

      6. Refer to the SPM TASK 70-36-06-360-501.

      3. Dimensional check the diameter of the repaired area. If necessary, grind the diameter of the repaired area.

      1. Refer to TASK 72-32-83-200-000 (INSPECTION-000) for the applicable Inspection/Check TASK.

      2. Refer to Figure.

      4. Hardness check the repaired area at four positions equally spaced on the circumference.

      1. Use durometer tester.

      2. Refer to the SPM TASK 70-36-06-360-501.

      3. Hardness: ASTM D2240 (Durometer 'A') 52 - 65.

    10. SUBTASK 72-32-83-220-086 Do a Bond Test to the Repaired Area

    1. Refer to Figure.

      2. NOTE

        Bond test shall be done after curing (bake) of rubber on the following conditions.

        Do a bond test to the repaired area.

      2. Signs of bulging or air leakage are not permitted.

    3. Inspection gas: Air or nitrogen gas.

    4. Gas pressure: 400 psi (28.1 Kg/sqcm).

      5. Inspection position: Refer to Figure.

      1. Vary the pattern as necessary to inspect partial repaired areas.

    6. Probe angle: Approximately 45 degrees.

    11. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    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
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:1E1X8
Enterprise Name:SAINT-GOBAIN CERAMICS AND PLASTICS, INC
BU Name:SAINT-GOBAIN CERAMICS AND PLASTICS, INC
Street:1 NEW BOND ST
City:WORCESTER
State:MA
Zip Code:01606
Country:UNITED STATES OF AMERICA
Phone Number:1-508-795-5000, 1-800-243-0028
Fax Number:1-508-795-2380
Internet:www.saint-gobain-northamerica.com
Manufacturer Code:64101
Enterprise Name:DELETED, SEE CAGE CODE 05972
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 01-076
Type:sp01
Supply Short Name:CoMat 01-076 METHYL ETHYL KETONE
Supply Name:CoMat 01-076 METHYL ETHYL KETONE
Specification Groups:
Doc NumberType
METHYL ETHYL KETONE, TECHNICAL GRADE, CERTIFIED TO BSI BS 1940 OR ASTM D740, OR TT-M-261
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:LOCAL
Supply Number:CoMat 02-005
Type:sp01
Supply Short Name:CoMat 02-005 ADHESIVE TAPE (MASKING)
Supply Name:CoMat 02-005 ADHESIVE TAPE (MASKING)
Specification Groups:
Doc NumberType
OMAT: 2/94 (RR REF)AT 7 BLACK, WATERPROOF
Suppliers:
ManufacturerRemarks
LOCAL
U0415
K6835
Manufacturer Code:X222X
Supply Number:CoMat 02-099
Type:sp01
Supply Short Name:CoMat 02-099 LINT-FREE CLOTH
Supply Name:CoMat 02-099 LINT-FREE CLOTH
Specification Groups:
Doc NumberType
WHERE COMAT 02-099 IS SPECIFIED WITH NO SUFFIX, USE COMAT 02-099A OR COMAT 02-099B.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:1E1X8
Supply Number:CoMat 05-050
Type:sp01
Supply Short Name:CoMat 05-050 SILICON CARBIDE GRIT
Supply Name:CoMat 05-050 SILICON CARBIDE GRIT
Specification Groups:
Doc NumberType
PMC 3053-31SILICON CARBIDE 5348 COATING No. 60 GRIT
Suppliers:
ManufacturerRemarks
1E1X8
Manufacturer Code:X222X
Supply Number:CoMat 06-064
Type:sp01
Supply Short Name:CoMat 06-064FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)
Supply Name:CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)
Specification Groups:
Doc NumberType
It is not permitted to mix the selected CoMat 06‐064 letter suffix material with other CoMat 06‐064 letter suffix materials.Where CoMat 06‐064 is specified with no suffix, use one of the CoMat 06‐064 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Supply Number:CoMat 07-028
Type:sp01
Supply Short Name:CoMat 07-028 CHROMATE CONVERSION COATING FOR ALUMINUM
Supply Name:CoMat 07-028 CHROMATE CONVERSION COATING FOR ALUMINUM
Specification Groups:
Doc NumberType
DELETED. USE COMAT 01-275
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:X222X
Supply Number:CoMat 08-032
Type:sp01
Supply Short Name:CoMat 08-032 PRIMER
Supply Name:CoMat 08-032 PRIMER
Specification Groups:
Doc NumberType
DELETED. USE ONE OF THE COMAT 08-032 LETTER SUFFIX ALTERNATIVE MATERIALS.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:X111X
Supply Number:CoMat 08-037
Type:sp01
Supply Short Name:CoMat 08-037 DELETED
Supply Name:CoMat 08-037 DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:FAK74
Supply Number:CoMat 08-038
Type:sp01
Supply Short Name:CoMat 08-038 SILICONE RUBBER COMPOUND
Supply Name:CoMat 08-038 SILICONE RUBBER COMPOUND
Specification Groups:
Doc NumberType
JCR-106 (JAEC REF)BLUESIL V-622
JS-3024 (JAEC REF)
Suppliers:
ManufacturerRemarks
FAK74
Link not Found
Manufacturer Code:0AM53
Tool Number:IAE 3J12775
Tool Name:IAE 3J12775 Bond test fixture
Manufacturer Code:0AM53
Tool Number:IAE 3J12785
Tool Name:IAE 3J12785 Inspection stand
Manufacturer Code:0AM53
Tool Number:IAE 3J12791
Tool Name:IAE 3J12791 Inspection stand
Manufacturer Code:0AM53
Tool Number:IAE 3J13155
Tool Name:IAE 3J13155 Filler injector
Manufacturer Code:0AM53
Tool Number:IAE 3J13513
Tool Name:IAE 3J13513 Fixture, rubber moulding
Manufacturer Code:LOCAL
Tool Number:Oven
Tool Name:Oven