TASK 72-60-41-300-003 Angle Gearbox Casing - Replace The Damaged Studs, Repair-003 (VRS5099)

DMC:V2500-A0-72-60-4101-00A-920A-C|Issue No:003.00|Issue Date:2020-05-01

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 72-60-41-300-003 Angle Gearbox Casing - Replace The Damaged Studs, Repair-003 (VRS5099)

Effectivity

FIG/ITEM

PART NO.

01-300

4B0256

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Support

-

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
SM101-18 Removal toolLOCALSM101-18 Removal tool
R1105W WrenchLOCALR1105W Wrench
S101D12 Drive toolLOCALS101D12 Drive tool

Consumables, Materials and Expendables

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

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Lock ringLOCALMS51997E-104PA/R

01-360

StudLOCALMS51551C205-10A/R

01-370

Lock ringLOCALMS51990E105PA/R

01-380

StudLOCALMS51551C205-10A/R

01-390

Lock ringLOCALMS51990E105PA/R

01-400

StudLOCALMS51551C205-13A/R

01-410

Lock ringLOCALMS51990E105PA/R

01-420

StudLOCALMS51551C205-9A/R

01-430

Lock ringLOCALMS51990E105PA/R

01-440

StudLOCALMS51551C205-14A/R

01-450

Lock ringLOCALMS51990E105PA/R

01-460

StudLOCALMS51551C205-9A/R

01-470

Lock ringLOCALMS51990E105PA/R

01-500

StudLOCALMS51551C205-10A/R

01-510

Lock ringLOCALMS51990E105PA/R

01-520

StudLOCALMS51551C205-13A/R

01-530

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-41-320-051 Mill the Lock Ring

    1. Refer to Figure.

      2. Install the removal tool in drill press chuck.

      1. Lower drill press above stud shank before starting motor.

        Cut off stud if too long for the removal tool.

        Keep sufficient shank length to give pilot for the removal tool.

      3. Mill through lock ring to remove serration interlock.

      1. Lift tool frequently to permit the cutting teeth to be clear from chips.

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

    2. SUBTASK 72-60-41-350-053 Remove the Stud

      1. Apply the removal torque to the stud.

      1. Continuous pressure of withdrawn stud should 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 stud.

    2. Complete the removal of the stud.

    3. SUBTASK 72-60-41-350-054 Install the New Stud

    1. Refer to Figure

      2. Lubricate the coarse threaded stud end.

      1. Start stud into housing.

      3. Install the stud.

      1. The depth is given in Figure.

        Stud must be perpendicular to flat surface of relevant flange within 0.014 in. (0.35 mm) each 4 in. (101.60 mm).

    4. SUBTASK 72-60-41-350-055 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 72-60-41-330-053 Restore the Damaged Anodic Treatment

      1. Check the surface.

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

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

    6. SUBTASK 72-60-41-230-052 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 studs and lock rings

    Replace damaged studs and lock rings

    Figure: Replace damaged studs and lock rings

    Replace damaged studs and lock rings

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added spares and revised figure. (19VC174)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Link not Found
Link not Found
Link not Found
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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:R1105W Wrench
Tool Name:R1105W Wrench
Manufacturer Code:LOCAL
Tool Number:S101D12 Drive tool
Tool Name:S101D12 Drive tool
Manufacturer Code:LOCAL
Tool Number:SM101-18 Removal tool
Tool Name:SM101-18 Removal tool