TASK 72-60-33-300-018 PMA Support - Chromium Plate The Rear Bearing Shoulder, Repair-018 (VRS5191)

DMC:V2500-A0-72-60-3304-07A-647A-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 72-60-33-300-018 PMA Support - Chromium Plate The Rear Bearing Shoulder, Repair-018 (VRS5191)

Effectivity

FIG/ITEM

PART NO.

01-420

4B0289

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

PMA support

-

17-4PH (AMS 5622)

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.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Workshop inspection equipmentLOCALWorkshop inspection equipment
Grinding machineLOCALGrinding machine
Magnetizing unitLOCALMagnetizing unit
Demagnetizing unitLOCALDemagnetizing unit
Pressure shotpeen systemLOCALPressure shotpeen system
BasketLOCALBasket
Vapor degreaserLOCALVapor degreaser
Process Plating TanksLOCALProcess plating tanks
FurnaceLOCALFurnace
Magnifying glassLOCALMagnifying glass
Vibrating marking pencilLOCALVibrating marking pencil

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-001 SOLVENT, DELETED0AM53CoMat 01-001
CoMat 01-022 SODIUM HYDROXIDE NaOH (SOLID)LOCALCoMat 01-022
CoMat 01-023 CHROMIUM TRIOXIDE CrO3(CHROM.ACID)LOCALCoMat 01-023
CoMat 02-017 WAXLOCALCoMat 02-017
CoMat 02-034 METALLIC MASKING TAPE(LEAD FOIL)76381CoMat 02-034
CoMat 05-030 CAST STEEL SHOT DELETED0AM53CoMat 05-030

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-33-320-067 Machine the Rear Bearing Shoulder

    1. Refer to Figure.

      2. Machine the rear bearing shoulder.

      1. Remove all of damage and wear.

      2. Keep the removal of material to the minimum necessary to remove the damage.

      3. The preplating dimension must be between 1.9537 and 1.9508 in. (49.625 and 49.550 mm) in relation to surface B.

      4. Surface rough must be 32 microin (0.8 micron) before plating.

    2. SUBTASK 72-60-33-240-061 Examine the PMA Support

      1. Do the magnetic particle inspection for cracks.

      1. Refer to the SPM TASK 70-24-01-240-501.

      2. Not cracks are permitted.

    3. SUBTASK 72-60-33-380-058 Shot-peen the Rear Bearing Shoulder

      1. Shot-peen the rear bearing shoulder to an intensity of 0.006A to 0.008Ain.

      1. Refer to the SPM TASK 70-38-04-300-503.

    4. SUBTASK 72-60-33-110-061 Clean the PMA Support

      1. Do the vapor degreasing.

      1. Refer to the SPM TASK 70-11-01-300-503.

    5. SUBTASK 72-60-33-330-059 Chromium Plate the Rear Bearing Shoulder

      1. Mask the areas not to be plated.

      2. Do the chromium plate.

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

      2. Plate to a sufficient thickness to permit the machining to the last dimensions.

      3. The plate out of the rear bearing shoulder is permitted but must be removed.

    3. Remove the mask.

      4. Clean and dry the PMA support.

      1. Flush with cold water.

      2. Flush with hot water.

      3. Dry with air blast.

    6. SUBTASK 72-60-33-370-060 De-embrittle the PMA Support

      1. Put the PMA support into a furnace at 284 to 320 deg F (140 to 160 deg C) for 5 hours.

      1. Do this procedure as soon as possible in 4 hours after the plating.

    7. SUBTASK 72-60-33-220-090 Examine the Plating

      1. Do the visual inspection of the plating for finish, cracks and adhesion.

      1. Plating must have constant color.

      2. No bubbles or sign of burned metal are permitted.

    8. SUBTASK 72-60-33-320-068 Machine the Rear Bearing Shoulder

    1. Refer to Figure.

      2. Machine the rear bearing shoulder.

      1. The last dimensions of the diameter must be between 1.9567 and 1.9547 in. (49.700 and 49.650 mm) in relation to surface B.

    9. SUBTASK 72-60-33-220-091 Examine the Chromium Plated Area

      1. Do the visual inspection of chromium plated area for cracks and adhesion.

      2. The natural network crack, emphasized by grinding, is permitted.

      2. Measure the thickness of the plating.

      1. Do not accept thickness less than 0.001 in. (0.025 mm) after the last machining.

    10. SUBTASK 72-60-33-350-060 Record the Repair

      1. Vibro engrave VRS5191 adjacent to the part number.

      2. Remove the metal lifted by marking the number.

    11. Figure: Chromium plate the rear bearing shoulder

    Chromium plate the rear bearing shoulder

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:76381
Enterprise Name:3M COMPANY
BU Name:3M COMPANY
Department:3M CENTER
City:ST PAUL
State:MN
Zip Code:55144-1000
Country:USA
Phone Number:1-651-733-1110
Fax Number:1-651-733-9973
Internet:www.mmm.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X111X
Supply Number:CoMat 01-001
Type:sp01
Supply Short Name:CoMat 01-001 SOLVENT, DELETED
Supply Name:CoMat 01-001 SOLVENT, DELETED
Specification Groups:
Doc NumberType
wiring harnesses. Where CoMat 01‐001 is specified to clean mechanical components, use one or more of the solvents that SPM TASK 70‐11‐26‐300‐503 specifies as applicable.DELETED. Where CoMat 01‐001 is specified to clean electrical contacts or wiring harnesses, use one or more of the solvents that SPM TASK 70‐11‐57‐110‐501 specifies to clean electrical contacts or
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:LOCAL
Supply Number:CoMat 01-022
Type:sp01
Supply Short Name:CoMat 01-022 SODIUM HYDROXIDE NaOH (SOLID)
Supply Name:CoMat 01-022 SODIUM HYDROXIDE NaOH (SOLID)
Specification Groups:
Doc NumberType
ASTM D 456 CAUSTIC SODA, PEARLS OR FLAKES
Suppliers:
ManufacturerRemarks
LOCAL
K6835
U0SV8
Manufacturer Code:LOCAL
Supply Number:CoMat 01-023
Type:sp01
Supply Short Name:CoMat 01-023 CHROMIUM TRIOXIDE CrO3(CHROM.ACID)
Supply Name:CoMat 01-023 CHROMIUM TRIOXIDE CrO3(CHROM.ACID)
Specification Groups:
Doc NumberType
OMAT: 111 (RR REF)99,0 PURE FLAKE O-C-303
JCR-034 (JAEC REF)99,0 PURE FLAKE O-C-303
MTH 126 (MTU REF)99,0 PURE FLAKE O-C-303
Suppliers:
ManufacturerRemarks
LOCAL
U1185
70657
24853
K6835
Manufacturer Code:LOCAL
Supply Number:CoMat 02-017
Type:sp01
Supply Short Name:CoMat02-017 WAX
Supply Name:CoMat 02-017 WAX
Specification Groups:
Doc NumberType
11429Y/Y MIL-P-23242 OMAT: 228PLATING WAX WILKINS CAMPBELL
JCR-178PLATING WAX WILKINS CAMPBELL
Suppliers:
ManufacturerRemarks
LOCAL
K6835
K4404
Manufacturer Code:76381
Supply Number:CoMat 02-034
Type:sp01
Supply Short Name:CoMat 02-034 METALLIC MASKING TAPE (LEADFOIL)
Supply Name:CoMat 02-034 METALLIC MASKING TAPE(LEAD FOIL)
Specification Groups:
Doc NumberType
PMC 4138-1 THRU -53M LEAD FOIL TAPE 420 (with linner) or 3M LEAD FOIL TAPE 421 (without linner)
Suppliers:
ManufacturerRemarks
76381
Manufacturer Code:0AM53
Supply Number:CoMat 05-030
Type:sp01
Supply Short Name:CoMat 05-030 CAST STEEL SHOT DELETED
Supply Name:CoMat 05-030 CAST STEEL SHOT DELETED
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
0AM53
Manufacturer Code:LOCAL
Tool Number:Basket
Tool Name:Basket
Manufacturer Code:LOCAL
Tool Number:Demagnetizing unit
Tool Name:Demagnetizing unit
Manufacturer Code:LOCAL
Tool Number:Furnace
Tool Name:Furnace
Link not Found
Manufacturer Code:LOCAL
Tool Number:Magnetizing unit
Tool Name:Magnetizing unit
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Process plating tanks
Tool Name:Process Plating Tanks
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment