TASK 72-60-23-300-007 Hydraulic Pump Drive Gear Housing - Repair The Seal Housing Bore By Bushing, Repair-007 (VRS5040)

DMC:V2500-A0-72-60-2304-02A-664A-C|Issue No:003.00|Issue Date:2021-05-01

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 72-60-23-300-007 Hydraulic Pump Drive Gear Housing - Repair The Seal Housing Bore By Bushing, Repair-007 (VRS5040)

Effectivity

FIG/ITEM PART NO.

01-460

4B0192

01-460

4B0313

01-460

4B0350

01-460

4B0372

Material of component

RR

DESCRIPTION SYMBOL MATERIAL

Housing

-

Aluminum alloy

Bushing

-

Wrought aluminum base alloy

General

Price and availability - none

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

NOTE

  1. To identify the consumable materials refer to the PCI.

  2. Other consumable materials are given in the SPM.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
IAE 3F10348 Drift, bushing (DIA 175)0AM53IAE 3F103481
Magnifying Glass, 5xLOCALMagnifying Glass, 5x
OvenLOCALOven
Penetrant Crack Test EquipmentLOCALPenetrant crack test equipment
Process Plating TanksLOCALProcess plating tanks
Vibro-engraving equipmentLOCALVibro-engraving equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-001 SOLVENT, DELETEDX111XCoMat 01-001

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
BushingLOCAL4L0012

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-23-320-069 Machine the Seal Housing Bore in the Hydraulic Pump Housing

    1. Refer to Figure.

      2. Machine the seal housing bore.

      1. The diameter must be 7.1559 in. to 7.1575 in. (181.760 mm to 181.800 mm), after the removal of the damage.

      3. Blend the drain holes, if necessary.

      1. Blend the sharp edges around the three drain holes.

    2. SUBTASK 72-60-23-220-089 Examine the Hydraulic Pump Housing

      1. Inspect the housing for cracks, in the area of the bore.

      1. Use a 5x magnifying glass.

    3. SUBTASK 72-60-23-330-061 Apply the Chromate Conversion Coating

      1. Apply the chromate conversion coating to the machined surfaces.

      1. Refer to the SPM TASK 70-38-02-300-503.

    4. SUBTASK 72-60-23-350-070 Install the Bushing

      WARNING

      DO NOT TOUCH THE HOT PARTS WITHOUT PROTECTIVE GLOVES.
      HOT PARTS CAN CAUSE REDDENING AND BLISTERING OF THE SKIN, IF THE HANDS ARE NOT PROTECTED.
      IMMERSE THE CONTACTED AREA IN COLD WATER FOR 10 MINUTES, IF THE SKIN IS BURNED. IMMEDIATELY GET MEDICAL ATTENTION IF PAIN OR BLISTERING PERSISTS.

      CAUTION

      INSTALL BUSHING IN MACHINED BORE IMMEDIATELY AFTER REMOVAL FROM FREEZER, OTHERWISE BUSHING CANNOT BE CORRECTLY INSTALLED.

    1. Refer to Figure

    2. CAUTION

      MAKE SURE THAT THE LEAD IN CHAMFER OF THE BUSHING POINTS AWAY FROM THE DRIFT.

      NOTE

      The difference in temperature between the parts must be 216 deg F (120 deg C).

      Install the bushing on the IAE 3F10348 Drift, bushing (DIA 175) 1 off.

      3. Increase the temperature of the housing and/or decrease the temperature of the assembled drift and bushing.

        1. Use an oven and/or a freezer.

        1. Do not increase the temperature of the housing above 284 deg F (140 deg C). Do not decrease the temperature of the assembled drift and bushing below -58 deg F (-50 deg C).

    4. Remove the housing from the oven and/or the assembled drift and bushing from the freezer.

      5. Install the bushing into the machined bore.

        1. Use IAE 3F10348 Drift, bushing (DIA 175) drift and an arbor press.

        1. Give sufficient back-up support at bushing bore area, to prevent housing distortion, when you install the bushing.

    6. Allow the parts to reach ambient temperature.

    7. Remove the drift.

    5. SUBTASK 72-60-23-320-070 Machine the Inner Diameter of the Bushing

    1. Refer to Figure

      2. Machine the inner diameter of the bushing.

      1. The dimension must be 7.0000 in. to 7.0020 in. (177.800 mm to 177.850 mm), in relation to surface A and diameter B.

      2. Chamfer where necessary.

    6. SUBTASK 72-60-23-330-062 Apply the Chromate Conversion Coating

      1. Apply the chromate conversion coating to the machined surface of the bushing.

      1. Refer to the SPM TASK 70-38-02-300-503.

    7. SUBTASK 72-60-23-350-071 Record the Repair

      1. Vibro-engrave VRS5040 adjacent to the part number.

      1. Remove the metal lifted by marking.

      2. Use vibro-engraving equipment.

    8. Figure: Repair Details And Dimensions

    Repair Details And Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Deleted grinding machine from support equipment and procedural steps. (19VF825)

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:X111X
Enterprise Name:N/A – DELETED CONSUMABLE MATERIAL
Link not Found
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:0AM53
Tool Number:IAE 3F10348
Tool Name:IAE 3F10348 Drift, bushing (DIA 175)
Manufacturer Code:LOCAL
Tool Number:Magnifying Glass, 5x
Tool Name:Magnifying Glass, 5x
Manufacturer Code:LOCAL
Tool Number:Oven
Tool Name:Oven
Manufacturer Code:LOCAL
Tool Number:Penetrant crack test equipment
Tool Name:Penetrant Crack Test Equipment
Manufacturer Code:LOCAL
Tool Number:Process plating tanks
Tool Name:Process Plating Tanks
Manufacturer Code:LOCAL
Tool Number:Vibro-engraving equipment
Tool Name:Vibro-engraving equipment