TASK 75-24-47-300-018 HPT/LPT Active Clearance Control (ACC) Ducts - Related Parts - Replace The Slotted Entry Bearing On The ACC Mounting Bracket, Repair-018 (VRS6672)

DMC:V2500-A0-75-24-4700-01A-920A-C|Issue No:001.00|Issue Date:2014-05-01

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 75-24-47-300-018 HPT/LPT Active Clearance Control (ACC) Ducts - Related Parts - Replace The Slotted Entry Bearing On The ACC Mounting Bracket, Repair-018 (VRS6672)

Effectivity

FIG/ITEM

PART NO.

01-500

6A6486

01-500

6A6587

Material of Component

PART IDENT

RR SYMBOL

MATERIAL

HP Compressor Front Case Assembly

TEG

Titanium Aluminium Vanadium Alloy

General

This Repair must only be done when the instruction to do so is given in 75-24-47, Inspection/Check.

This Repair gives the instruction to replace the slotted entry bearings on the ACC mounting brackets.

Price and availability - Refer to International Aero Engines.

Related Repairs - None

NOTE

More equipment and materials necessary to do this Repair are in the SPM TASKS given below:
Refer to SPM TASK 70-11-26-300-503.
Refer to SPM TASK 70-23-05-230-501.
Refer to SPM TASK 70-35-03-300-501.
Refer to SPM TASK 70-42-06-400-501.
Refer to SPM TASK 70-09-00-400-501.

NOTE

To identify the consumable materials, refer to the PCI.

NOTE

The tools specified are the minimum standard for this TASK. For subsequent standards of tools refer to the Illustrated Tools and Equipment Manual (ITEM).

Repair Parts

FIG/ITEM

PART NO

PART IDENT

QTY

01-530

VTB12350E

Bearing Assembly

1

01-530

P25000

Bearing Assembly

1

01-532

VTB12351

Bearing, Spherical

1

01-532

P25001

Bearing, Spherical

1

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Standard Workshop EquipmentLOCALStandard Workshop Equipment
Chemical cleaning equipmentLOCALChemical cleaning equipment
Penetrant Crack Test EquipmentLOCALPenetrant crack test equipment
Vertical Milling MachineLOCALVertical Milling Machine
PressLOCALPress
Workshop inspection equipmentLOCALWorkshop inspection equipment
Vibro-engraving equipmentLOCALVibro-engraving equipment
IAE 3R19072 Trepanning cutter0AM53IAE 3R190721 off

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)LOCALCoMat 06-022

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 75-24-47-110-064 Chemically Clean the Bracket Assemblies

      1. Chemically clean the bracket assembly area.

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

    2. SUBTASK 75-24-47-230-065 Crack Test

      1. Do a local penetrant crack test of the bearing adjacent area(s).

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

        3. Cracked

        1. Reject

    3. SUBTASK 75-24-47-350-062-001 Remove the Bearing - Method 1

      CAUTION

      BE CAREFUL WHEN YOU PRESS OUT THE BEARING. DO NOT DAMAGE THE LOCATION HOLE OF THE BEARING.

    1. Refer to Figure.

      2. Install the bracket assemblies on to the vertical milling machine.

      3. Machine the lip of the bearing that is to be replaced.

      1. If necessary use IAE 3R19072 Trepanning cutter, 1 off or suitable equivalent with a Chemical cleaning equipment.

      4. Remove the bearing

        1. Use a pressure of 15 psi (1 bar) (100 KPa).

    4. SUBTASK 75-24-47-350-062-002 Remove the Bearing - Method 2

      CAUTION

      BE CAREFUL WHEN YOU PRESS OUT THE BEARING. DO NOT DAMAGE THE LOCATION HOLE OF THE BEARING.

      NOTE

      This is an alternative to Step.

    1. Refer to Figure.

      2. Carefully press out the bearing in the bracket assembly that is to be replaced.

        1. Use a pressure of 15 psi (1 bar) (100 Kpa).

    5. SUBTASK 75-24-47-350-063 Polish

      1. Polish any scratches from the bearing location hole, as necessary.

      1. Refer to SPM TASK 70-35-03-300-501.

      2. Use Press.

    6. SUBTASK 75-24-47-110-065 Chemically Clean

      1. Chemically clean the area bracket assembly.

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

    7. SUBTASK 75-24-47-230-066 Crack Test

      1. Do a local penetrant crack test of the bearing adjacent area(s).

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

        3. Cracked

        1. Reject.

    8. SUBTASK 75-24-47-220-082 Do a Visual and Dimensional Inspection

    1. Refer to Figure.

      2. Visually examine and measure the dimensions of the bearing location.

    9. SUBTASK 75-24-47-350-064 Install the New Bearing

      NOTE

      Before you install the new bearing assembly, you must remove the ball bearing and keep it safe.

    1. Refer to Figure.

      2. Install the new bearing in to the bracket assemblies.

      1. For part 6A6486, 6A6587 use VTB12350E, bearing assembly, 01-530, 1 off. Alternatively use P25000 bearing assembly, 01-530, 1 off. Or use VTB12351, spherical bearing, 01-532, 1 off. Alernatively use P250001 spherical bearing, 01-532, 1 off.

    10. SUBTASK 75-24-47-350-065 Ring Stake the New Bearing

    1. Refer to Figure.

      2. Stake the new bearing in to the bracket assemblies.

      1. Refer to SPM TASK 70-42-06-400-501, SUBTASK 70-42-06-400-004.

      2. Use a staking tool, 1 off, available from the bearing vendor.

    11. SUBTASK 75-24-47-110-066 Chemically Clean

      1. Chemically clean the bracket assemblies.

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

    12. SUBTASK 75-24-47-230-067 Do a Crack Test

      1. Do a local penetrant crack test of the new installed bearing and the adjacent area(s).

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

    13. SUBTASK 75-24-47-220-083 Do a Visual and Dimensional Inspection

    1. Refer to Figure.

      2. Visually examine the bracket assemblies.

      1. Refer to SPM TASK 70-42-06-400-501, SUBTASK 70-42-06-400-004.

      2. Make sure the new bearing is located correctly.

      3. Inspect the circumference of the gap in the swaged lip to housing chamfer.

      1. Use a 0.127 mm (0.005 in.) feeler gauge. A properly swaged bearing in a optimal housing will not accept the feeler gauge.

      2. No more than 40 per cent of the circumference may accept the feeler gauge.

      3. The bearing race face to be flush with the housing to within 0.254 mm (0.010 in).

    14. SUBTASK 75-24-47-350-066 Do a Bearing Pull Out Check

      1. Select one bearing for a pull out check.

      1. Apply a load of 600 lbf to each side of the staked bearing.

      2. The load is to be applied to the bearing housing and is to be applied along the axis of the spherical bearing through the hole.

      3. The bearing must not move during the test.

        NOTE

        No load to be passed onto the ball of the bearing.

    15. SUBTASK 75-24-47-350-067 Install the Ball Bearing

      CAUTION

      DO NOT USE METALLIC TIES. THESE CAN DAMAGE THE BEARING COMPONENTS

      1. Install the ball bearing(s) and examine the movement of the ball in the bearing.

      1. Make sure you get a smooth movement.

    16. SUBTASK 75-24-47-350-068 Safety the Ball

      CAUTION

      DO NOT USE METALLIC TIES. THESE CAN DAMAGE THE BEARING COMPONENTS.

      1. Safety the ball in the bearing.

      1. Use string or suitable equipment.

    17. SUBTASK 75-24-47-350-069 Identify the part

      1. Make a mark VRS6672 adjacent to the part number

      1. Refer to SPM TASK 70-09-00-400-501, SUTASK 70-09-00-400-001.

    18. Figure: Install the Spherical Bearing in the Assembly

    Install the Spherical Bearing in the Assembly

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:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X222X
Supply Number:CoMat 06-022
Type:sp01
Supply Short Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Supply Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Specification Groups:
Doc NumberType
ARDROX 985-P14 OMAT: 652 (CHEMETALL OAKITE 985-P14)It is not permitted to mix the selected CoMat 06‐022 letter suffix material with other CoMat 06‐022 letter suffix materials. Where CoMat 06‐022 is specified with no suffix, use one of the CoMat 06‐ 022 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:0AM53
Tool Number:IAE 3R19072
Tool Name:IAE 3R19072 Trepanning cutter
Manufacturer Code:LOCAL
Tool Number:Penetrant crack test equipment
Tool Name:Penetrant Crack Test Equipment
Manufacturer Code:LOCAL
Tool Number:Press
Tool Name:Press
Manufacturer Code:LOCAL
Tool Number:Standard Workshop Equipment
Tool Name:Standard Workshop Equipment
Link not Found
Manufacturer Code:LOCAL
Tool Number:Vibro-engraving equipment
Tool Name:Vibro-engraving equipment
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment