TASK 72-32-53-300-009 No. 1 Bearing Face Seal - Restore The Chrome Plate In The Anti-Rotation Slots, Repair-009 (VRS3403)

DMC:V2500-A0-72-32-5302-00A-647A-C|Issue No:001.00|Issue Date:2014-05-01

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 72-32-53-300-009 No. 1 Bearing Face Seal - Restore The Chrome Plate In The Anti-Rotation Slots, Repair-009 (VRS3403)

Effectivity

FIG/ITEM

PART NO.

01-150

2A1773

01-150

2A2199

01-180

2A2924

01-194

2A2916

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

No. 3 bearing face seal

-

-

General

Price and availability - refer to IAE

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
LatheLOCALLathe

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-53-330-054 Remove the Chrome Plate by Chemical or by Machine from the Anti-Rotation Slots

      NOTE

      Carbon seal replacement is necessary after you complete the chrome plate repair. Masking the carbon is not permitted because it is possible that there will be contamination with the plating solution and the masking material.

    1. Refer to Figure and Figure.

      2. Remove the chrome plate by chemical.

      1. Refer to the SPM TASK 70-33-02-330-501.

      3. Remove the chrome plate by machine.

        1. Machine the slot sufficiently to permit a plating thickness of 0.0005 to 0.008 in. (0.013 to 0.203 mm) on each side after finish machining.

        1. Remove the minimum amount of base material.

        2. Refer to Figure.

    2. SUBTASK 72-32-53-230-052 Examine the No. 1 Bearing Face Seal for Cracks

      1. Examine the area you machined for cracks.

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

    3. SUBTASK 72-32-53-330-055 Apply Chrome Plate to the Anti-Rotation Slots of the No. 1 Bearing Face Seal

    1. Refer to Figure and Figure.

      2. NOTE

        No chrome plate is permitted outside the enclosed plate area.

        Apply chrome plate to the anti-rotation slots.

        1. Refer to the SPM TASK 70-33-02-330-501.

        1. The plating thickness must be 0.0005 to 0.008 in. (0.013 to 0.203 mm) on each side after finish machining.

    4. SUBTASK 72-32-53-370-051 Bake the No. 1 Bearing Face Seal After Chrome Plate

    1. Bake the face seal at 735 to 765 deg F (391 to 407 deg C) for 2 hours.

    5. SUBTASK 72-32-53-320-051 Machine the No. 1 Bearing Face Seal After Chrome Plate

    1. Refer to Figure and Figure.

    2. Machine the anti-rotation slots.

    6. SUBTASK 72-32-53-220-092 Examine the No. 1 Bearing Face Seal After Repair

    1. Refer to Figure and Figure.

      2. Examine the face seal after repair.

      1. Refer to TASK 72-32-53-200-000 (INSPECTION-000).

    7. SUBTASK 72-32-53-320-052 Replace the No. 1 Bearing Face Seal (Carbon Detail) After Repair

      1. Replace the face seal (carbon detail).

      1. Refer to Repair 008, VRS3385 TASK 72-32-53-300-008 (REPAIR-008).

    8. Figure: No. 1 bearing face seal anti-rotation slot chrome plate repair

    No. 1 bearing face seal anti-rotation slot chrome plate repair

    Figure: No. 1 bearing face seal anti-rotation slot chrome plate repair

    No. 1 bearing face seal anti-rotation slot chrome plate repair

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:Lathe
Tool Name:Lathe