TASK 72-41-34-300-023 HPC Inlet Variable Stator Vane Ring Connector Bridges - Replace The Bushes, Repair-023 (VRS6262)

DMC:V2500-A0-72-41-3432-00A-920A-C|Issue No:002.00|Issue Date:2021-02-01

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 72-41-34-300-023 HPC Inlet Variable Stator Vane Ring Connector Bridges - Replace The Bushes, Repair-023 (VRS6262)

Effectivity

FIG/ITEM PART NO.

02-200

6A2510

02-200

6A7586

02-200

6A7847

Material of component

The HP Compressor VIGV Actuating Ring Connector Assembly is manufactured from Titanium alloy.

The Bush is manufactured from Graphite filled Polymide resin.

General

This repair must only be done when the instruction to do so is given in TASK 72-41-34 (INSPECTION).

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

Price and availability

Refer to International Aero Engines

Related repairs - none

NOTE

Equipment and materials necessary to do this repair are in the SPM TASK given below:
SPM TASK 70-23-05-230-501

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Standard Workshop EquipmentLOCALStandard Workshop Equipment
Portable Drilling MachineLOCALPortable Drilling Machine
DrillLOCALDrill

0.346 in. (8,80 mm) diameter

Chemical cleaning equipmentLOCALChemical cleaning equipment
Workshop inspection equipmentLOCALWorkshop inspection equipment
Penetrant Crack Test EquipmentLOCALPenetrant crack test equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)X222XCoMat 06-064

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Bush6A25124

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-34-350-093 Remove the Worn Bushes

      CAUTION

      DO NOT DAMAGE THE BUSH LOCATION HOLE IN THE CONNECTOR.

    1. Refer to Figure and Figure.

      2. Remove the head of the bush.

      1. Use a portable drilling machine with a 0.346 in. (8.80 mm) diameter drill to drill the head of the bush until the head is released.

      3. Remove the bush.

      1. Use a round bar to drift out remains of the bush.

        NOTE

        Pushing the bushing from the hole using a round bar, and on its own is sufficient to remove the bushings when needed.

      4. Remove the sharp edges around the hole.

      1. Use standard workshop equipment.

    2. SUBTASK 72-41-34-110-107 Clean Location Holes

    1. Refer to Figure and Figure.

      2. Clean the bush location holes in the connector.

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

        Locally degrease to clean the holes and dry using soft clean cloth and air blast.

        Remove all debris.

    3. SUBTASK 72-41-34-220-227 Examine the Bush Location Holes

    1. Refer to Figure and Figure.

      2. Visually examine and measure 4 off bush location holes.

      1. Examine for damage to the connection (bridge piece) assembly.

        Examine the bush location hole diameters and reject if location diameter is greater than specified, or damaged.

    4. SUBTASK 72-41-34-230-090 Do a Crack Test

      1. Do a penetrant crack test on the repair areas.

      1. Refer to the SPM TASK 70-23-02-230-501.

        Cracks are not permitted.

    5. SUBTASK 72-41-34-350-094 Install the Bushes

    1. Refer to Figure and Figure.

      2. Install the new bushes.

      1. Use 6A2512 bush HPC Variable Stator Vane Actuation System (72-41-34,02-220) as required.

        Push bush into the hole until the safety feature is engaged.

        Use standard workshop equipment.

    6. SUBTASK 72-41-34-220-228 Examine the Bush Location

    1. Refer to Figure.

      2. Examine the installation of the bushes.

      1. Make sure all the bushes are correctly installed and securely located.

        Use standard workshop equipment.

    7. 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
Change Type:

Added note. (20VG108)

Link not Found
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X222X
Enterprise Name:N/A – REFER TO APPLICABLE COMAT SUFFIX
Link not Found
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
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:LOCAL
Tool Number:Drill
Tool Name:Drill
Manufacturer Code:LOCAL
Tool Number:Penetrant crack test equipment
Tool Name:Penetrant Crack Test Equipment
Manufacturer Code:LOCAL
Tool Number:Portable Drilling Machine
Tool Name:Portable Drilling Machine
Manufacturer Code:LOCAL
Tool Number:Standard Workshop Equipment
Tool Name:Standard Workshop Equipment
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment