TASK 72-60-41-300-004 Angle Gearbox Casing - Replace The Damaged Screw Thread Inserts, Repair-004 (VRS5100)

DMC:V2500-A0-72-60-4101-01A-920A-C|Issue No:003.00|Issue Date:2016-08-01

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 72-60-41-300-004 Angle Gearbox Casing - Replace The Damaged Screw Thread Inserts, Repair-004 (VRS5100)

Effectivity

FIG/ITEM

PART NO.

01-300

4B0256

01-300

4B0354

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Casing

-

A357-T61

(AMS 4219)

General

Price and availability - none

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

NOTE

To identify the consumable materials refer to the PCI.

NOTE

Tools for removal and installation may be purchased from ROSAN Inc., 2901 West Coast Highway, Newport Beach, California 92663, USA.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
DrillLOCALDrill

5/16in. (7.937 mm), removal

Square screw extractor, removalLOCALSquare screw extractor, removal
R1106W Wrench, installationLOCALR1106W Wrench, installation
R206D Drive tool, installationLOCALR206D Drive tool, installation

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 10-077A APPROVED ENGINE OILLOCALCoMat 10-077A

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Lock ringLOCALMS51990E106PA/R
Screw insertLOCALMS51991E206LA/R

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-41-320-052 Mill the Lock Ring

    1. Refer to Figure.

      2. Install the removal tool in drill press chuck.

      1. Use Drill for lock ring.

      3. Mill through lock ring to remove serration interlock.

      1. It is not necessary to mill fully through the lock ring.

    2. SUBTASK 72-60-41-350-056 Remove the Insert

      1. Apply the removal torque to the insert.

      1. Drive the Square screw extractor, removal into the insert.

        Continuous pressure of withdrawn insert could cause lock ring to be forced out from its location.

        Break with a punch and remove the remaining portion of lock ring if it has been milled fully through and it does not lift out with the insert.

    2. Complete the removal of the insert.

    3. SUBTASK 72-60-41-350-057 Install the New Insert

    1. Refer to Figure.

      2. Lubricate the coarse threaded insert end.

      1. Start insert into housing.

      3. Install the insert.

      1. The depth is given in Figure.

    4. SUBTASK 72-60-41-350-058 Install the Lock Ring

    1. Refer to Figure.

      2. Install the new lock ring.

      1. Align the external serrations of the new lock ring with those in parent material of the housing.

      3. Seat the new lock ring.

      1. Seat the new lock ring to depth given in Figure.

    5. SUBTASK 72-60-41-330-054 Restore the Damaged Anodic Treatment

      1. Check the surface.

      1. Do the touch up process if the anodic treatment has been damaged by insert installation.

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

    6. SUBTASK 72-60-41-230-053 Crack Test the Repaired Area

      1. Do a crack test on the repaired area.

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

    7. Figure: Replace damaged inserts and lock rings

    Replace damaged inserts and lock rings

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to update the SPM task reference. (14VC406)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Link not Found
Manufacturer Code:X333X
Supply Number:CoMat 10-077A
Type:sp01
Supply Short Name:CoMat 10-077A APPROVED ENGINE OIL
Supply Name:CoMat 10-077A APPROVED ENGINE OIL
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
X333X
Manufacturer Code:LOCAL
Tool Number:Drill
Tool Name:Drill
Manufacturer Code:LOCAL
Tool Number:R1106W Wrench, installation
Tool Name:R1106W Wrench, installation
Manufacturer Code:LOCAL
Tool Number:R206D Drive tool, installation
Tool Name:R206D Drive tool, installation
Manufacturer Code:LOCAL
Tool Number:Square screw extractor, removal
Tool Name:Square screw extractor, removal