TASK 72-42-31-300-009 No. 4 Bearing Support - Replace The Dowel Pin, Repair-009 (VRS3275)

DMC:V2500-A0-72-42-3100-00A-920A-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 72-42-31-300-009 No. 4 Bearing Support - Replace The Dowel Pin, Repair-009 (VRS3275)

Effectivity

FIG/ITEM PART NO.

01-010

2A0846

01-010

2A2038

01-010

2A2064

01-010

2A2461

Material of component

PART IDENT

SYMBOL

MATERIAL

No. 4 bearing support assembly

-

Nickel alloy

General

Price and availability - refer to IAE

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Pin5062161

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-42-31-350-056 Remove the Loose or Damaged Pin from the No. 4 Bearing Support Assembly

    1. Refer to: Figure

    2. Press out or drive out the loose or damaged pin with a drift.

    2. SUBTASK 72-42-31-220-061 Examine the Pin Hole in the No. 4 Bearing Support Assembly

      1. Inspect the pin hole.

      1. The diameter of the pin hole must be 0.301 to 0.303in. (7.646 to 7.696 mm). If the hole diameter is satisfactory, replace the pin with PN 506216. If the hole diameter is more than 0.303in. (7.696mm), do the procedure in Step.

    3. SUBTASK 72-42-31-350-070 Make a Stepped Pin for Oversized Pin Holes in the No. 4 Bearing Support Assembly

    1. Refer to: Figure

      2. Bore the pin hole to.

        remove damage.

      1. Remove the minimum material necessary to make the pin hole round and to remove damage or raised material.

    3. Measure and make a record of the .

      diameter of the pin hole.

      4. Locally manufacture a stepped pin.

        Maintain a 0.000 - 0.003 in. (0.000 - 0.076 mm).

        tight fit to the oversized hole.

      1. See Figure.

    4. SUBTASK 72-42-31-350-057 Install the New or Locally Manufactured Dowel Pin into the No. 4 Bearing Support

    1. Chill the new pin.

      2. Drive the chilled pin into the bearing support.

      1. Use a mallet and a drift.

    5. SUBTASK 72-42-31-220-062 Examine the Dowel Pin in the No. 4 Bearing Support Assembly

      1. Inspect the dowel pin in the No. 4 bearing support assembly.

    6. SUBTASK 72-42-31-350-071 Identify the Repair

      1. Mark VRS3275 on the repaired.

        No. 4 bearing support adjacent.

        to the part number.

      1. Make a permanent mark by the procedure given in the SPM TASK 70-09-00-400-501 in the SPM. Use the vibration peen method. Remove high metal caused by marking the part number.

    7. Figure: No. 4 bearing support assembly dowel pin replacement

    No. 4 bearing support assembly dowel pin replacement

    Figure: Locally manufacture a dowel pin for oversized pin holes

    Locally manufacture a dowel pin for oversized pin holes

Requirements After Job Completion

Follow-On Conditions

NONE
Link not Found
Link not Found