TASK 72-50-25-300-020 LPT Outer Diffuser Support - Replace The Nuts, Repair-020 (VRS4314)

DMC:V2500-A0-72-50-2502-04A-920A-C|Issue No:002.00|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 72-50-25-300-020 LPT Outer Diffuser Support - Replace The Nuts, Repair-020 (VRS4314)

Effectivity

FIG/ITEM

PART NO.

01-010

3A1907

Material of component

PART IDENT

SYMBOL

MATERIAL

Outer diffuser support assembly

C 263

Nut

-

General

Price and availability - none

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Rivet setting equipmentLOCALRivet setting equipment
Electric hand drillLOCALElectric hand drill
Illuminated comparator magnifierLOCALIlluminated comparator magnifier

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
NutST15782

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-25-320-059 Remove the Worn Nuts

      1. Machine off the flared part of the worn nuts.

      1. Use electric hand drill, diameter of drill 0.27in. (6.80 mm).

        Damages at the chamfers, the bore and the faces of the outer diffuser support assembly are not permitted.

        Refer to Figure.

      2. Hit lightly the remainder of the nut shaft to remove it from the outer diffuser support assembly.

      1. Use pin punch with diameter 0.29in. (7.50 mm).

    2. SUBTASK 72-50-25-220-107 Examine the Outer Diffuser Support Assembly for Damage

      1. Examine the inner diameter of the hole for damage.

      1. Fine scratches are permitted.

        Remove raised material.

        Refer to Figure.

        Use needle file and stones.

    3. SUBTASK 72-50-25-350-060 Install the New Nuts

      1. Install the hollow sections of the new nuts in to the holes.

      1. Make sure that the shoulders of the nuts are installed so that the nuts cannot rotate.

        Refer to Figure.

      2. Flare over the location diameter of the nuts.

      1. Use rivet setting equipment.

        Axial movement of the nut up to maximum 0.010in. (0.25 mm) is permitted.

    4. SUBTASK 72-50-25-220-108 Do the Post Repair Inspection

      1. Examine the installed nuts for cracks visually.

      1. No cracks are permitted.

        Use illuminated comparator magnifier.

      2. Examine the nuts for correct installation.

      1. The flare must be formed symmetrically without broken or rough edges.

        Use illuminated comparator magnifier.

      3. Examine the installed nuts dimensionally.

      1. Axial movement of the nuts up to maximum 0.010in. (0.25 mm) is permitted.

    5. Figure: Replace the nuts of the outer diffuser support assembly

    Replace the nuts of the outer diffuser support assembly

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial correction due to conversion

Link not Found
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:LOCAL
Tool Number:Electric hand drill
Tool Name:Electric hand drill
Manufacturer Code:LOCAL
Tool Number:Illuminated comparator magnifier
Tool Name:Illuminated comparator magnifier
Manufacturer Code:LOCAL
Tool Number:Rivet setting equipment
Tool Name:Rivet setting equipment