TASK 72-60-33-300-002 PMA Drive Gear - Nickel Plate The Inner Diameter, Repair-002 (VRS5175)

DMC:V2500-A0-72-60-3303-00A-647A-C|Issue No:002.00|Issue Date:2020-05-01

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 72-60-33-300-002 PMA Drive Gear - Nickel Plate The Inner Diameter, Repair-002 (VRS5175)

Effectivity

FIG/ITEM

PART NO.

01-120

4B0286

01-120

4B0293

01-120

4B0361

Material of component

DESCRIPTION

RR SYMBOL

MATERIAL

Drive gear

AMS 6265 (AISI 9310)

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
Hot Oil TankLOCALHot Oil Tank
BasketLOCALBasket
FurnaceLOCALFurnace
Magnifying GlassLOCALMagnifying Glass
Vibrating Marking PencilLOCALVibrating Marking Pencil

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-001 SOLVENT, DELETEDX111XCoMat 01-001
CoMat 02-067 STRIPPABLE COATING71410CoMat 02-067

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-33-320-051 Machine the Inner Diameter of the Drive Gear

    1. Refer to Figure.

      2. Machine the inner diameter of the drive gear.

      1. The inner diameter must be between 0.4730 to 0.4793 in. (12.015 to 12.174 mm).

      2. Remove all damage and wear.

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

    2. SUBTASK 72-60-33-240-053 Examine the Drive Gear

      1. Do the magnetic particle inspection for cracks.

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

      2. No cracks are permitted.

    3. SUBTASK 72-60-33-210-051 Nital Etch the Inner Diameter

      1. Do the nital etch of the inner diameter to find sign of burned metal.

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

      2. Machine the inner diameter if there is sign of burned metal.

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

    4. SUBTASK 72-60-33-370-051 Do the De-embrittlement Treatment

      1. Put the P.M.A. drive gear into oil at 284 deg F (140 deg C) for 2 hours.

      1. Use a hot oil tank.

      2. Do this process as soon as possible in 2 hours after the etch.

    5. SUBTASK 72-60-33-330-051 Nickel Plate the Inner Diameter of the P.M.A. Drive Gear

    1. Refer to Figure.

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

      3. Do the nickel plating.

      1. Refer to the SPM TASK 70-33-05-300-503.

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

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

    4. Remove the mask.

      5. Clean and dry the gear.

      1. Flush with cold water.

      2. Flush with hot water.

      3. Dry with air blast.

    6. SUBTASK 72-60-33-370-052 Do the Embrittlement Relief to the Gear

      1. Put the gear into a furnace at 349 to 400 deg F (179 to 204 deg C) for 4 hours.

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

    7. SUBTASK 72-60-33-220-073 Examine the Inner Diameter

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

      1. Plating must have a constant color.

      2. No circumferential cracks are permitted.

      3. No rough and blistering are permitted.

    8. SUBTASK 72-60-33-320-052 Machine the Inner Diameter of the Gear

    1. Refer to Figure.

      2. Machine the inner diameter of the gear.

      1. The inner diameter must be between 0.4714 to 0.4718 in. (11.974 to 11.985 mm).

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

    9. SUBTASK 72-60-33-220-074 Examine the Inner Diameter of the P.M.A. Drive Gear

    1. Refer to Figure.

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

      1. Use a 4X magnifying glass.

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

      3. Measure the thickness of the plating.

      1. Do not accept thickness less than 0.0006 in. (0.015 mm) after the last machining.

    10. SUBTASK 72-60-33-350-051 Record the Repair

      1. Vibro engrave VRS5175 adjacent to the part number.

      1. Remove the metal lifted by marking.

    11. Figure: Repair details and dimension

    Repair details and dimension

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised effectivity table, material of component and subtask title. (12VF860C)

Manufacturer Code:71410
Enterprise Name:HENKEL CORPORATION (WAS: TURCO PRODUCTS, INC)
BU Name:HENKEL CORPORATION (WAS: TURCO PRODUCTS, INC)
Street:32100 STEPHENSON HIGHWAY
City:MADISON HEIGHTS
State:MI
Zip Code:48071
Country:USA
Phone Number:1-248-583-9300
Fax Number:1-248-583-2976
Internet:www.aerospace.henkel.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X111X
Enterprise Name:N/A – DELETED CONSUMABLE MATERIAL
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:71410
Supply Number:CoMat 02-067
Type:sp01
Supply Short Name:CoMat 02-067 STRIPPABLE COATING
Supply Name:CoMat 02-067 STRIPPABLE COATING
Specification Groups:
Doc NumberType
TURCO 5580-G PMC 1835
Suppliers:
ManufacturerRemarks
71410
Manufacturer Code:LOCAL
Tool Number:Basket
Tool Name:Basket
Manufacturer Code:LOCAL
Tool Number:Furnace
Tool Name:Furnace
Manufacturer Code:LOCAL
Tool Number:Grinding Machine
Tool Name:Grinding Machine
Manufacturer Code:LOCAL
Tool Number:Hot Oil Tank
Tool Name:Hot Oil Tank
Manufacturer Code:LOCAL
Tool Number:Magnifying Glass
Tool Name:Magnifying Glass
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