TASK 72-60-28-300-027 Generator Drive Gear Housing - Replace The Damaged Or Loose Helicoil Inserts, Repair-027 (VRS5672)

DMC:V2500-A0-72-60-2804-04A-920A-C|Issue No:003.00|Issue Date:2015-05-01

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 72-60-28-300-027 Generator Drive Gear Housing - Replace The Damaged Or Loose Helicoil Inserts, Repair-027 (VRS5672)

Effectivity

FIG/ITEM PART NO.

01-450

4B0348

01-450

4B0370

Material of component

RR

DESCRIPTION SYMBOL MATERIAL

Housing

-

Aluminum alloy

General

Price and availability - none.

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
1227-6 Extracting toolLOCAL1227-6 Extracting tool
3695-4 Break-off toolLOCAL3695-4 Break-off tool
7552-4 Inserting toolLOCAL7552-4 Inserting tool

Tools for removal and installation can be purchased from Helicoil Product division/Mite corporation, Danbury, Connecticut 06108,USA.

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Helicoil insertMS21209F4-20LA/R

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-28-350-114 Remove the Insert

    1. Refer to Figure.

      2. Apply the extracting tool into the insert.

      1. Drive the extracting tool into the insert at approximately a quarter of a coil from the end of the insert.

      3. Arrange the extracting tool into the insert.

      1. Hit the head of the tool lightly to dig the blade into the top of the coil of the insert. Use a hammer.

      4. Complete the removal of the insert.

      1. Bearing down hard on the handle of the tool, slowly turn the tool counterclockwise. Maintain a hard pressure on the handle when the insert backs out.

    2. SUBTASK 72-60-28-330-089 Restore the Damaged Anodic Treatment

      1. Check the surface.

      1. Do the touch-up process. Refer to the SPM TASK 70-38-02-300-503.

    3. SUBTASK 72-60-28-350-115 Install the New Insert

    1. Refer to Figure.

      2. Put the insert on the tool.

      1. Put the new helicoil insert on the tip of the inserting tool.

      3. Put the tool with the insert.

      1. Put the tool with the new helicoil insert into the threaded hole.

      4. Install the insert into the hole.

      1. Install the new helicoil insert into the hole. Turn the handle clockwise. Install the helicoil 1 to 1.5 pitch below surface.

      5. Break the tangs.

      1. Break the insert tang off at notch. Use a tang break-off tool. Remove broken tangs from blind holes with a magnetized rod.

    4. SUBTASK 72-60-28-330-090 Restore the Damaged Anodic Treatment

      1. Check the surface.

      1. Do the touch-up process if the anodic treatment was damaged by insert installation, at the surface. Refer to the SPM TASK 70-38-02-300-503.

    5. SUBTASK 72-60-28-220-178 Examine the Insert

      1. Do an inspection of the new helicoil insert.

      1. Refer to the SPM TASK 70-35-08-300-501.

    6. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised format. (editorial change)

Link not Found
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:LOCAL
Tool Number:1227-6 Extracting tool
Tool Name:1227-6 Extracting tool
Manufacturer Code:LOCAL
Tool Number:3695-4 Break-off tool
Tool Name:3695-4 Break-off tool
Manufacturer Code:LOCAL
Tool Number:7552-4 Inserting tool
Tool Name:7552-4 Inserting tool