TASK 72-41-13-300-008 HPC Rear Shaft - Repair The No. 4 Bearing, Front Seal And Seal Spacer Mating Diameters By Chromium Plate, Repair-008 (VRS3447)

DMC:V2500-A0-72-41-1301-00A-609A-C|Issue No:001.00|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 72-41-13-300-008 HPC Rear Shaft - Repair The No. 4 Bearing, Front Seal And Seal Spacer Mating Diameters By Chromium Plate, Repair-008 (VRS3447)

Effectivity

FIG/ITEM

PART NO.

01-900

2A1331

01-900

2A1386

01-900

2A1967

01-900

2A1990

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

HPC shaft assembly

-

Nickel base alloy

General

Price and availability - refer to IAE

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

You can do TASK 72-41-13-300-013, Repair-013 (VRS3462) (REPAIR-013) at the same time you do this repair.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Machining equipmentLOCALMachining equipment
Plating equipmentLOCALPlating equipment
Workshop inspection equipmentLOCALWorkshop inspection equipment
IAE 3P16393 Hanger, Plating0AM53IAE 3P163931

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-13-320-053 Machine the No. 4 Bearing, Front Seal and Seal Spacer Mating Diameters Before Plating

      1. Set-up and machine the No. 4 bearing front seal mating diameter to the dimension given in the figure.

        1. Refer to Figure and Figure.

        1. Keep the machining to the maximum diameter.

      2. Set-up and machine the No. 4 bearing seal spacer mating diameter to the dimension given in the figure.

        1. Refer to Figure and Figure.

        1. Keep the machining to the maximum diameter.

      3. Set-up and machine the No. 4 bearing mating diameter to the dimension given in the figure.

        1. Refer to Figure and Figure.

        1. Keep the machining to the maximum diameter.

    2. SUBTASK 72-41-13-230-070 Examine the Machined No. 4 Bearing, Front Seal and Seal Spacer Mating Diameter for Cracks

      1. Examine the machined No. 4 bearing front seal mating diameter for cracks.

      1. Refer to Figure.

        2. Do the penetrant procedure given in the SPM TASK 70-23-04-230-501.

        1. No cracks permitted.

      2. Examine the machined No. 4 bearing seal spacer mating diameter for cracks.

      1. Refer to Figure.

        2. Do the penetrant procedure given in the SPM TASK 70-23-04-230-501.

        1. No cracks permitted.

      3. Examine the machined No. 4 bearing mating diameter for cracks.

      1. Refer to Figure.

        2. Do the penetrant procedure given in the SPM TASK 70-23-04-230-501.

        1. No cracks permitted.

    3. SUBTASK 72-41-13-380-053 Shot Peen the No. 4 Bearing, Front Seal and Seal Spacer Mating Diameters

      1. Shot peen the machined No. 4 bearing front seal mating diameter and adjacent radii.

      1. Refer to Figure.

      2. Do the procedure given in the SPM TASK 70-38-13-380-501.

      2. Shot peen the machined No. 4 bearing seal spacer mating diameter and adjacent radii.

      1. Refer to Figure.

      2. Do the procedure given in the SPM TASK 70-38-13-380-501.

      3. Shot peen the machined No.4 bearing mating diameter and adjacent radii.

      1. Refer to Figure.

      2. Do the procedure given in the SPM TASK 70-38-13-380-501.

    4. SUBTASK 72-41-13-330-053 Chromium Plate the No. 4 Bearing, Front Seal and Seal Spacer Mating Diameters

      1. Install the IAE 3P16393 Hanger, Plating 1 off on the threads of the shaft.

        1. Refer to Figure.

        1. The electrical connection for the plating is located on the hanger.

      2. NOTE

        Do not put the part in an oven before or after chromium plate.

        Chromium plate the No. 4 bearing front seal mating diameter to the minimum plate diameter given in the figure.

        1. Refer to Figure and Figure.

        1. Do the plating procedure given in the SPM TASK 70-33-02-330-501.

        2. Electrical contact is permitted only in the area given in the figure. In this area no burns, pits or selective attack is permitted.

        3. No plate is permitted in the radii as given in the figure.

        4. Plate outside the area is permitted, but the plate must be removed.

      3. Chromium plate the No. 4 bearing seal spacer mating diameter to the minimum plate diameter given in the figure.

        1. Refer to Figure and Figure.

        1. Do the plating procedure given in the SPM TASK 70-33-02-330-501.

        2. Electrical contact is permitted only in the area given in the figure. In this area no burns, pits or selective attack is permitted.

        3. No plate is permitted in the radii as given in the figure.

        4. Plate outside the area is permitted, but the plate must be removed.

      4. Chromium plate the No. 4 bearing mating diameter to the minimum plate diameter given in the figure.

        1. Refer to Figure and Figure.

        1. Do the plating procedure given in the SPM TASK 70-33-02-330-501.

        2. Electrical contact is permitted only in the area given in the figure. In this area no burns, pits or selective attack is permitted.

        3. No plate is permitted in the radii as given in the figure.

        4. Plate outside the area is permitted, but the plate must be removed.

    5. SUBTASK 72-41-13-320-054 Machine the No. 4 Bearing, Front Seal and Seal Spacer Mating Diameters after Plating

    1. Remove the plating hanger.

      2. Set-up and machine the No. 4 bearing front seal mating diameter to the dimensions given in the figure.

        1. Refer to Figure and Figure.

        1. The finish diameter must be in the limits given in the figure.

        2. The taper must not be more than 0.0002 in. (0.0051 mm) total.

        3. The out-of-round diameter must not be more than 0.0009 in. (0.023 mm) total.

      3. Set-up and machine the No. 4 bearing seal spacer mating diameter to the dimensions given in the figure.

        1. Refer to Figure and Figure.

        1. The finish diameter must be in the limits given in the figure.

        2. The taper must not be more than 0.0002 in. (0.0051 mm) total.

        3. The out-of-round diameter must not be more than 0.0009 in. (0.023 mm) total.

      4. Set-up and machine the No. 4 bearing seal spacer mating diameter to the dimensions given in the figure.

        1. Refer to Figure and Figure.

        1. The finish diameter must be in the limits given in the figure.

        2. The taper must not be more than 0.0002 in. (0.0051 mm) total.

        3. The out-of-round diameter must not be more than 0.0009 in. (0.023 mm) total.

    6. SUBTASK 72-41-13-220-143 Examine the Repair

      1. Examine the No. 4 bearing front seal mating diameter to the dimensions given in the figure.

        1. Refer to Figure and Figure.

        1. Electrical contact is permitted only in the area given in the figure.

        2. In this area no burns, pits or selective attack is permitted.

      2. Examine the No. 4 bearing seal spacer mating diameter to the dimensions given in the figure.

        1. Refer to Figure and Figure.

        1. Electrical contact is permitted only in the area given in the figure. In this area no burns, pits or selective attack is permitted.

      3. Examine the No. 4 bearing mating diameter to the dimensions given in the figure.

        1. Refer to Figureand Figure.

        1. Electrical contact is permitted only in the area given in the figure. In this area no burns, pits or selective attack is permitted.

    7. SUBTASK 72-41-13-350-065 Mark the Part

    1. Refer to Figure

      2. NOTE

        If the VRS repair number is marked on the part, do not mark the repair number again.

        Mark the repair number VRS3447 adjacent to the part number at the location given in the figure.

      1. Mark the part by the procedures given in the SPM TASK 70-09-00-400-501.

      2. Use the shallow electrolytic etch method.

    8. Figure: HPC rear shaft chromium plate repair areas

    HPC rear shaft chromium plate repair areas

    Figure: HPC rear shaft chromium plate repair areas (No. 4 bearing front seal mating diameter)

    HPC rear shaft chromium plate repair areas (No. 4 bearing front seal mating diameter)

    Figure: HPC rear shaft chromium plate repair areas (No. 4 bearing front seal mating diameter)

    HPC rear shaft chromium plate repair areas (No. 4 bearing front seal mating diameter)

    Figure: HPC rear shaft chromium plate repair areas (No. 4 bearing seal spacer mating diameter)

    HPC rear shaft chromium plate repair areas (No. 4 bearing seal spacer mating diameter)

    Figure: HPC rear shaft chromium plate repair areas (No. 4 bearing seal spacer mating diameter)

    HPC rear shaft chromium plate repair areas (No. 4 bearing seal spacer mating diameter)

    Figure: HPC rear shaft chromium plate repair areas (No. 4 bearing mating diameter)

    HPC rear shaft chromium plate repair areas (No. 4 bearing mating diameter)

    Figure: HPC rear shaft chromium plate repair areas (No. 4 bearing mating diameter)

    HPC rear shaft chromium plate repair areas (No. 4 bearing mating diameter)

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:0AM53
Tool Number:IAE 3P16393
Tool Name:IAE 3P16393 Hanger, Plating
Manufacturer Code:LOCAL
Tool Number:Machining equipment
Tool Name:Machining equipment
Manufacturer Code:LOCAL
Tool Number:Plating equipment
Tool Name:Plating equipment
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment