TASK 72-60-42-300-036 Angle Gearbox Oil Duct - Chromium Plate The Pilot Diameter, Repair-036 (VRS5662)

DMC:V2500-A0-72-60-4206-00A-647A-C|Issue No:001.00|Issue Date:2015-08-01

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 72-60-42-300-036 Angle Gearbox Oil Duct - Chromium Plate The Pilot Diameter, Repair-036 (VRS5662)

Effectivity

FIG/ITEM

PART NO.

01-130

4B0259

01-130

4B0297

Material of component

PART IDENT

SYMBOL

MATERIAL

Oil duct

AMS5645

Stainless steel

General

This Repair must only be done when the instruction to do so is given in the relevant Inspection.

The TASK gives the procedure to chromium plate the pilot diameter of the oil duct.

Price and availability - none

TASKs identified by SPP TASK are in the Standard Practices and Processes Manual (SPP).

NOTE

Equipment and materials necessary to do this repair are in the SPM TASKs given below:

NOTE

It is possible that some materials in the Consumable Materials chart cannot be used for some or all of the necessary applications. Before you use the materials, make sure the types, quantities and applications of the materials necessary are legally permitted in your location. All persons must obey all applicable federal, state, local and provincial laws and regulations when it is necessary to work with these materials.
To identify the consumable materials, refer to the Overhaul Processes and Consumables Index (PCI).
Other necessary consumable materials are referred to in the SPM TASKs.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment
Grinding machineLOCALGrinding machine
Hot oil tankLOCALHot oil tank
Magnifying glass, 5xLOCALMagnifying glass, 5x
OvenLOCALOven
Vibrating Marking PencilLOCALVibrating Marking Pencil
Workshop inspection equipmentLOCALWorkshop inspection equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-003 SOLVENT, DELETEDLOCALCoMat 01-003
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

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-42-320-102 Machine the Pilot Diameter B of the Oil Duct

    1. Refer to Figure.

      2. Machine the pilot diameter.

      1. The pre-plating diameter must be between 1.9087 and 1.9193 in. (48.483 and 48.750 mm).

      2. Remove all damage and wear.

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

    2. SUBTASK 72-60-42-230-067 Examine the Oil Duct

      1. Do a penetrant inspection for cracks.

      1. Refer to TASK 72-60-42-200-007, SUBTASK 72-60-42-230-062.

      2. Cracks are not permitted.

    3. SUBTASK 72-60-42-380-061 Shot-peen the Pilot Diameter

      1. Shot-peen the bearing journal surface to an intensity of 6 to 8A.

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

    4. SUBTASK 72-60-42-110-004 Clean the Oil Duct

      WARNING

      WHEN YOU USE CoMat 01-003 SOLVENT, DELETED 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.

      1. Do the vapor degreasing.

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

    5. SUBTASK 72-60-42-330-077 Chromium Plate the Pilot Diameter B

    1. Refer to Figure.

      2. Mask the areas of the tube not to be plated.

      3. Chromium plate the pilot diameter.

      1. Refer to the SPM TASK 70-33-02-100-501.

      2. Plate to a sufficient thickness to let the machining to the final dimensions.

      3. The plating out of the pilot diameter area is permitted but must be removed.

    4. Remove the masking.

      5. Clean and dry the fuel oil duct.

      1. Flush with cold water.

      2. Flush with hot water.

      3. Dry with air blast.

    6. SUBTASK 72-60-42-370-076 Do the Embrittlement Relief to the Oil Duct

      1. Put the oil duct 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 72-60-42-220-089 Examine the Oil Duct

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

      1. The plating must have a constant color.

      2. Blistering and signs of burned metal are not permitted.

    8. SUBTASK 72-60-42-320-103 Machine the Pilot Diameter B of the Oil Duct

    1. Refer to Figure.

      2. Machine the pilot diameter.

      1. The pilot diameter must be between 1.9205 and 1.9213 in. (48.780 and 48.800 mm).

      2. Clean up the edges and chamfers, where necessary.

    9. SUBTASK 72-60-42-220-090 Examine the Chromium Plated Areas

    1. Refer to Figure.

      2. Do the visual inspection of chromium plated areas for cracks and adhesion.

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

      3. Measure the thickness of the plating.

      1. Do not accept thickness less than 0.0010 in. (0.025 mm) after the final machining.

    10. SUBTASK 72-60-42-350-097 Identify the Repair

    1. Refer to Figure.

      2. If necessary, vibro etch VRS5662 adjacent to the part number.

      1. Refer to the SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001.

    11. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised format. (editorial change)

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 01-003
Type:sp01
Supply Short Name:CoMat 01-003 SOLVENT, DELETED
Supply Name:CoMat 01-003 SOLVENT, DELETED
Specification Groups:
Doc NumberType
wiring harnesses. Where CoMat 01‐003 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 01‐003 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 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:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment
Link not Found
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Oven
Tool Name:Oven
Manufacturer Code:LOCAL
Tool Number:Vibrating Marking Pencil
Tool Name:Vibrating Marking Pencil
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment