TASK 72-60-43-300-005 Angle Gearbox Driven Bevel Gearshaft - Chromium Plate The Roller Bearing Shoulder, Repair-005 (VRS5202)

DMC:V2500-A0-72-60-4301-02A-647A-C|Issue No:002.00|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 72-60-43-300-005 Angle Gearbox Driven Bevel Gearshaft - Chromium Plate The Roller Bearing Shoulder, Repair-005 (VRS5202)

Effectivity

FIG/ITEM

PART NO.

01-420

4P0224

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Bevel radial gearshaft

Wrought alloy steel

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.
Other consumable materials are given in SPM.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

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

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-001 SOLVENT, DELETED0AM53CoMat 01-001
CoMat 01-023 CHROMIUM TRIOXIDE CrO3(CHROM.ACID)K6835CoMat 01-023
CoMat 02-017 WAXLOCALCoMat 02-017
CoMat 02-034 METALLIC MASKING TAPE(LEAD FOIL)76381CoMat 02-034
CoMat 05-029 CAST STEEL SHOT, S110LOCALCoMat 05-029
CoMat 10-023 MINERAL OIL73277CoMat 10-023

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-43-320-057 Machine the Roller Bearing Shoulder

    1. Refer to Figure.

      2. Measure dimension D.

      1. Measure dimension D and record it.

      3. Machine the roller bearing shoulder.

      2. Remove all of the damage and wear.

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

      4. Do not remove more than 0.0053 in. (0.135 mm).

      5. Surface rough must be 32 microinch (0.8 micron) before plating.

      4. Measure dimension D.

      1. The value must be 1.2860 in. (32.665 mm) minimum.

      2. Reject the gearshaft if the dimension D is less than the minimum value.

    2. SUBTASK 72-60-43-240-056 Examine the Bevel Gearshaft

      1. Do the magnetic particle inspection for cracks.

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

      3. No cracks are permitted.

    3. SUBTASK 72-60-43-210-053 Nital Etch the Roller Bearing Shoulder

      1. Do the nital etch on the roller bearing shoulder to find sign of burning.

      1. Refer to the SPM TASK 70-21-02-210-501.

      2. Machine the roller bearing journal if there are signs of burnt metal.

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

    4. SUBTASK 72-60-43-370-056 De-embrittle the Bevel Gearshaft

      1. Put the bevel gearshaft onto oil at 284 deg F (140 deg C) for 2 hours.

      1. Use a hot oil tank.

      2. Do this procedure as soon as possible in less than 2 hours after the etch.

    5. SUBTASK 72-60-43-380-053 Shot-peen the Roller Bearing Shoulder

      1. Shot-peen the roller bearing shoulder to an intensity of 0.006A to 0.008A in.

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

    6. SUBTASK 72-60-43-110-055 Clean the Bevel Gearshaft

      1. WARNING

        WHEN YOU USE COMAT 01-001 INHIBITED AND STABILIZED TRICHLOROETHANE YOU MUST USE THE NECESSARY PROTECTIVE CLOTHING. DO NOT GET THE SOLVENT ON YOUR SKIN OR IN YOUR EYES. YOU MUST NOT SMOKE WHEN YOU USE THE SOLVENT AS THE VAPOR CHANGES AND BECOMES TOXIC.

        Do the vapor degreasing.

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

    7. SUBTASK 72-60-43-330-054 Chromium Plate the Roller Bearing Shoulder

    1. Refer to Figure.

      2. Mask the areas not to be plated.

      3. Do the chromium plate.

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

      3. Plate to a sufficient thickness to permit the machining to the last dimension.

      4. The plating out of the roller bearing shoulder is permitted but must be removed.

    4. Remove the mask.

      5. Clean and dry the bevel gearshaft.

      1. Flush with cold water.

      2. Flush with hot water.

      3. Dry with air blast.

    8. SUBTASK 72-60-43-370-057 De-embrittle the Bevel Gearshaft

      1. Put the bevel gearshaft into an oven at 284 to 320 deg F (140 to 160 deg C) for 5 hours.

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

    9. SUBTASK 72-60-43-220-067 Examine the Plating

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

      1. Use process plating tanks.

      2. Plating must have constant color.

      3. No bubbles or sign of burnt metal are permitted.

    10. SUBTASK 72-60-43-420-058 Machine the Roller Bearing Shoulder

    1. Refer to Figure.

      2. Machine the roller bearing shoulder.

      1. The new value must be within plus or minus 0.0006 in. (0.015 mm) in relation to dimension D measured in Step.

      2. The new value must be more than 1.2913 in. (32.800 mm).

      3. Clean up the edges of the groove and chamfer where necessary.

    11. SUBTASK 72-60-43-220-068 Examine the Chromium Plated Area

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

      2. The natural network crack, emphazied 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.

    12. SUBTASK 72-60-43-350-055 Record the Repair

      1. Vibro engrave VRS5202 adjacent to the part number.

      2. Remove the metal lifted by marking the number.

    13. Figure: Chromium Plate the Roller Bearing Shoulder

    Chromium Plate the Roller Bearing Shoulder

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised figure 1. (15VC769)

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:73277
Enterprise Name:HOUGHTON INTERNATIONAL INC
BU Name:HOUGHTON INTERNATIONAL INC
Street:MADISON AND VANBUREN AVENUES
P.O. Box:930
City:VALLEY FORGE
State:PA
Zip Code:19482-0930
Country:USA
Phone Number:1-610-666-4000, 1-610-666-4096
Fax Number:1-610-666-1376, 1-610-666-5682
Internet:www.houghtonintl.com
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:K6835
Enterprise Name:MED-LAB LTD
BU Name:MED-LAB LTD
Street:COPELAND ST
City:DERBY
Zip Code:DE1 2PU
Country:GREAT BRITAIN
Phone Number:44-1332-349094
Fax Number:44-1332-371237
Email:sales@med-lab.co.uk
Internet:www.med-lab.co.uk
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 01-023
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:55807
Supply Number:CoMat 05-029
Type:sp01
Supply Short Name:CoMat 05-029 CAST STEEL SHOT, S110
Supply Name:CoMat 05-029 CAST STEEL SHOT, S110
Specification Groups:
Doc NumberType
AMS 2431/1 ASR 110
Suppliers:
ManufacturerRemarks
55807
Manufacturer Code:73277
Supply Number:CoMat 10-023
Type:sp01
Supply Short Name:CoMat 10-023 MINERAL OIL
Supply Name:CoMat 10-023 MINERAL OIL
Specification Groups:
Doc NumberType
HOUGHTON MAR-TEMP 300
Suppliers:
ManufacturerRemarks
73277
Manufacturer Code:LOCAL
Tool Number:Basket
Tool Name:Basket
Manufacturer Code:LOCAL
Tool Number:Demagnetizing unit
Tool Name:Demagnetizing unit
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Magnetizing unit
Tool Name:Magnetizing unit
Link not Found
Manufacturer Code:LOCAL
Tool Number:Oven
Tool Name:Oven
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