TASK 72-32-83-300-062 LPC Rear Case - Replace The Sleeve and Sleeve Hole Bushing Repair, Repair-062 (VRS1615)

DMC:V2500-A5-72-32-8340-09A-920A-C|Issue No:001.00|Issue Date:2021-08-01

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 72-32-83-300-062 LPC Rear Case - Replace The Sleeve and Sleeve Hole Bushing Repair, Repair-062 (VRS1615)

Effectivity

FIG/ITEM

PART NO.

02-900

5W2196

Material of component

DESCRIPTION

SYMBOL

MATERIAL

LPC rear case assembly

Aluminum alloy

General

Price and availability - none

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

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

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Boring machineLOCALBoring machine
Standard Workshop EquipmentLOCALStandard Workshop Equipment

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
SLEEVE81349M81934-1-05C01440

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-83-350-152 Remove the Loosened Sleeve

    2. Extract the loosened sleeve.

    1. SUBTASK 72-32-83-110-001 Clean the LPC Rear Case Assembly

      1. Clean the LPC rear case assembly.

    1. SUBTASK 72-32-83-350-153 Surface Examine the Hole

    2. Refer to Figure, Figure, and Figure.

      1. Visually examine the hole.

      2. No cracks are permitted. Use 10X magnifying glass.

    3. Do Step, if one sleeve for a pair sleeve is removed.

    4. Do Step, if two sleeves for a pair sleeve are removed.

    1. SUBTASK 72-32-83-350-154 Examine the Undamaged Sleeve Inner Diameter

    2. Refer to Figure and Figure.

    3. Dimensionally examine the inner diameter of undamaged sleeve.

      1. If the diameter is more than 0.314 in. (7.98 mm).

      2. Remove the undamaged sleeve.

      1. If the diameter is less than or equal to 0.314 in. (7.98 mm).

      2. Accept.

    1. SUBTASK 72-32-83-350-155 Machine the Bush Hole

    2. Refer to Figure, Figure, Figure, Figure, Figure, and Figure.

      1. Install the LPC rear case assembly on to the machine. Secure in position for safe machining.

      2. Use a boring machine.

      1. Machine the bush holes.

      2. Use standard workshop equipment.

      3. Diameter of the bush hole is 0.5652 to 0.5659 in. (14.355 to 14.373 mm).

      1. Remove the sharp edges.

      2. Use standard workshop equipment.

    1. SUBTASK 72-32-83-220-001 Examine the Machined Area

    2. Refer to Figure, Figure, Figure, Figure, Figure, and Figure.

      1. Examine the machined area for cracks.

      2. Refer to the SPM TASK 70-23-05-230-501. No cracks are permitted.

      1. Dimensionally inspect the machined hole.

      2. Make sure the bush hole diameter is between 0.5652 to 0.5659 in. (14.355 to 14.373 mm).

    1. SUBTASK 72-32-83-380-001 Surface Treat the Machined Area

      1. Do a chemical touch-up to the repaired area with a brush.

      2. Refer to SPM TASK 70-38-02-300-503.

    1. SUBTASK 72-32-83-350-156 Prepare the Bush

    2. Refer to Figure.

    3. Prepare the bush.

      1. Do a chemical touch-up to the bush with a brush.

    1. SUBTASK 72-32-83-350-157 Install the Bush

    2. Refer to Figure, Figure, Figure, Figure, Figure, and Figure.

      1. Chill the bush.

      2. Chill the bush in dry ice for minimum 15 minutes.

    3. Heat the LPC Rear Case to a temperature of maximum 212 deg F (100 deg C).

    4. Install the bush into the machined hole.

      1. Do a staking.

        1. Adjust the position of the new staking.

        2. Refer to SPM TASK 70-42-06-400-501.

    1. SUBTASK 72-32-83-350-158 Install the New Sleeve

    2. Refer to Figure, Figure, Figure, and Figure.

      1. Chill the new sleeve.

      2. Chill the sleeve in dry ice for minimum 15 minutes.

    3. Install the sleeve into the bush hole.

      1. Do a staking.

        1. Adjust the position of the new staking.

        2. Refer to SPM TASK 70-42-06-400-501.

    1. SUBTASK 72-32-83-220-002 Examine the Repaired Area

    2. Refer to Figure, Figure, Figure, and Figure.

      1. Visually examine the repaired area.

      2. If damage is found, reject the repair.

      1. Dimensional inspect the repaired area.

      2. Check the positioning of the sleeve and the staking position.

    1. SUBTASK 72-32-83-350-159 Identify the Repair

      1. Mark VRS1615 next to the part number.

      2. Refer to SPM TASK 70-09-00-400-501.

    1. SUBTASK 72-32-83-350-160 Surface Treat the Marking Area

      1. Do a chemical touch-up to the marking area with a brush.

      2. Refer to SPM TASK 70-38-02-300-503.

  1. 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

    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

    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

    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

    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:81349
Enterprise Name:DELETED, SEE CAGE CODE 81348
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Part Number:M81934-1-05C014
Part Name:SLEEVE
Manufacturer Code:81349
Manufacturer Code:LOCAL
Tool Number:Boring machine
Tool Name:Boring machine
Manufacturer Code:LOCAL
Tool Number:Standard Workshop Equipment
Tool Name:Standard Workshop Equipment