TASK 72-32-72-300-002 LPC Bleed Valve Ring - Replace Rubber Seal, Repair-002 (VRS1334)

DMC:V2500-A0-72-32-7200-00A-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 72-32-72-300-002 LPC Bleed Valve Ring - Replace Rubber Seal, Repair-002 (VRS1334)

Effectivity

FIG/ITEM

PART NO.

01-100

5A3734

Material of component

PART IDENT

SYMBOL

MATERIAL

Valve

Aluminum alloy

General

Price and availability - not applicable

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

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 01-275 CHROMATE CONVERSION COATING FOR ALUMINIUMLOCALCoMat 01-275
CoMat 05-016 GARNET PAPER, 80-GRITLOCALCoMat 05-016
CoMat 05-017 GARNET PAPER, 60 GRITLOCALCoMat 05-017
CoMat 05-019 WATERPROOF SILICON CARBIDELOCALCoMat 05-019
CoMat 05-020 WATERPROOF SILICON CARBIDELOCALCoMat 05-020
CoMat 08-013 COLD CURING SILICONE COMPOUNDLOCALCoMat 08-013
CoMat 08-014 PRIMER, SILICONE ADHESIVE/SEALANT0AM53CoMat 08-014

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Rubber seal5A37331

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-72-350-052 Remove the Damaged Rubber Seal from the Valve Assembly

    1. Refer to Figure.

    2. Examine and identify damaged strip seal.

      3. Remove damaged rubber seal (but do not cause damage to the parent material) and remaining compound.

    2. SUBTASK 72-32-72-360-051 Prepare the Mating Surfaces for the Cold Curing Silicone Rubber Compound

    1. Refer to Figure.

      2. Cold liquid degrease the mating surfaces.

        1. Refer to the SPM TASK 70-11-26-300-503.

        1. Refer to the SPM TASK 70-36-02-360-501.

    4. NOTE

      A water break-test is not necessary.

      Do step A again.

    3. SUBTASK 72-32-72-230-053 Apply the Surface Protection to the Valve Assembly

    1. Refer to Figure.

      2. Apply chromate conversion coating to the repair surfaces, if necessary.

    4. SUBTASK 72-32-72-360-052 Apply and Cure the Cold Curing Silicone Rubber Compound

    1. Refer to Figure and Figure.

      2. CAUTION

        DO NOT EAT ANYTHING OR SMOKE AT LOCATIONS WHERE THESE MATERIAL ARE USED.

        CAUTION

        AFTER PREPARATION THE MATING SURFACES MUST BE FULLY CLEANED AND MUST NOT BE TOUCHED BY HAND, TO PREVENT CONTAMINATION.

        CAUTION

        DO NOT APPLY THE PRIMER TO THE MATING SURFACE OF THE RUBBER SEAL.

        NOTE

        The primer must be applied immediately after the mating surfaces are prepared. It is cured at room temperature in the atmosphere.

        NOTE

        If the parts are not used immediately, after the primer is applied, they must be kept in polythene bags, but for not longer than 24 hours.

        Apply a thin layer of primer only to the prepared mating surface of valve. Dry in air for 30 minutes.

      3. Apply the cold curing silicone rubber compound to each of the mating surfaces.

      4. Install the rubber seal to the valve assembly within three minutes after the compound is applied.

        1. Apply sufficient pressure to ensure good contact and to form a witness of adhesive at all edges.

        1. Make sure that compound can be seen around the sealed surfaces.

    5. Remove excess adhesive compound from the valve.

      6. NOTE

        The parts can be touched after 12 hours.

        Cure the compound at 68 deg F (20 deg C) for 48 hours.

      1. Do not apply a load during this time.

      7. Cut off the rubber seal protrusion from the valve.

        1. Use cutter knife.

        1. Take care that the valve is not damaged.

    5. SUBTASK 72-32-72-220-060 Examine the Repaired Areas of the Valve Assembly

    1. Refer to Figure and Figure.

    2. Dimensionally examine the position of the repaired rubber seal.

    3. Visually examine gapping and filling.

    6. Figure: Replace seal rubber of the valve assembly

    Replace seal rubber of the valve assembly

    Figure: Replace seal rubber of the valve Assembly

    Replace seal rubber of the valve Assembly

Requirements After Job Completion

Follow-On Conditions

NONE
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:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:00BB6
Supply Number:CoMat 01-275
Type:sp01
Supply Short Name:CoMat 01-275 CHROMATE CONVERSION COATING FOR ALUMINIUM
Supply Name:CoMat 01-275 CHROMATE CONVERSION COATING FOR ALUMINIUM
Specification Groups:
Doc NumberType
BONDERITE M-CR-1200S AEROJCR-047 (JAEC REF)
JCR-048 (JAEC REF)SPMC 206 (PW REF)
Suppliers:
ManufacturerRemarks
00BB6
71410
Manufacturer Code:0KHE3
Supply Number:CoMat 05-016
Type:sp01
Supply Short Name:CoMat 05-016 GARNET PAPER, 80-GRIT
Supply Name:CoMat 05-016 GARNET PAPER, 80-GRIT
Specification Groups:
Doc NumberType
GARNET PAPER, CAMI GRIT SIZE 80 GRADE 0 (ANSI B74.18)
Suppliers:
ManufacturerRemarks
0KHE3
1E1X8
LOCAL
C4347
K0993
K2F42
K6835
V571V
Manufacturer Code:0KHE3
Supply Number:CoMat 05-017
Type:sp01
Supply Short Name:CoMat 05-017 GARNET PAPER, 60 GRIT
Supply Name:CoMat 05-017 GARNET PAPER, 60 GRIT
Specification Groups:
Doc NumberType
GARNET PAPER, CAMI GRIT SIZE 60 GRADE 1/2 (ANSI B74.18)
Suppliers:
ManufacturerRemarks
0KHE3
1E1X8
C4347
LOCAL
K0993
K6835
Manufacturer Code:1E1X8
Supply Number:CoMat 05-019
Type:sp01
Supply Short Name:CoMat 05-019 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-019 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/31 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 400 (ANSI B74.18)
JCR-184 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
LOCAL
K6835
Manufacturer Code:1E1X8
Supply Number:CoMat 05-020
Type:sp01
Supply Short Name:CoMat 05-020 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-020 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/33 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 320 (ANSI B74.18)
JCR-027 (JAEC REF)
JCR-186 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
LOCAL
K6835
Manufacturer Code:X222X
Supply Number:CoMat 08-013
Type:sp01
Supply Short Name:CoMat 08-013 COLD CURING SILICONE COMPOUND
Supply Name:CoMat 08-013 COLD CURING SILICONE COMPOUND
Specification Groups:
Doc NumberType
If CoMat 08-013 is specified without an asterisk or a letter suffix, use one of the letter suffix alternative materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:X222X
Supply Number:CoMat 08-014
Type:sp01
Supply Short Name:CoMat 08-014 PRIMER, SILICONE ADHESIVE/SEALANT
Supply Name:CoMat 08-014 PRIMER, SILICONE ADHESIVE/SEALANT
Specification Groups:
Doc NumberType
Use the applicable letter suffix material. Refer to SPM TASK 70-36-02-360-501.
Suppliers:
ManufacturerRemarks
X222X