TASK 72-60-43-200-001 Angle Gearbox Bearing Housing Diaphragm - Examine, Inspection-001

DMC:V2500-A0-72-60-4304-00A-300A-C|Issue No:001.00|Issue Date:2014-05-01

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 72-60-43-200-001 Angle Gearbox Bearing Housing Diaphragm - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-080

4P0018

General

This TASK gives the procedure for the inspection of the diaphragm. For the other parts of the angle gearbox driven bevel gear assembly refer to TASK 72-60-43-200-000 (INSPECTION-000).

Fig/item numbers in parentheses in the procedure agree with those used in the IPC.

The policy that is necessary for inspection is given in the SPM TASK 70-20-01-200-501.

All the parts must be cleaned before any part is examined. Refer to the SPM TASK 70-11-03-300-503

All the parts must be visually examined for damage, corrosion and wear. Any defects that are not identified in the procedure must be referred to IAE.

The procedure for those parts which must have a crack test is given in the SPM TASK 70-23-00-230-501. Do the test before the part is visually examined. Limits for cracks are given in the SUBTASK for each part.

Do not discard any part until you are sure there are no repairs available. Refer to the instructions in Repair before a discarded part is used again or oversize parts are installed.

Parts which should be discarded can be held although no repair is available. The repair of a discarded part could be shown to be necessary at a later date.

All the parts must be examined to make sure that all the repairs have been completed satisfactorily.

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-43-220-052 Dimensional Inspection of the Diaphragm

    1. Refer to Figure.

      2. Knife edge seal - location 1.

        1. Diameter.

          1. Between 3.2264 and 3.2236 in. (81.95 and 81.88 mm)

          1. Accept

          2. Less than Step

          1. Reject

      3. Internal seat - location 2.

        1. Diameter.

          1. Between 2.3906 and 2.3910 in. (60.720 and 60.732 mm)

          1. Accept

          2. Between 2.3910 and 2.3981 in. (60.732 and 60.912 mm)

          1. Repair, VRS5022 TASK 72-60-43-300-002 (REPAIR-002)

          3. More than Step

          1. Reject

    2. SUBTASK 72-60-43-240-051 Do a Crack Test on the Diaphragm (01-080) (Magnetic)

    1. Clean the parts. Refer to the TASK 72-60-43-100-000 (CLEANING-000).

      2. Do the test for cracks on the parts that are given below:

        PART IDENT

        PROCEDURE

        CURRENT/INSPECT

        TASK/SUBTASK

        Diaphragm

        TB

        700 amps

        SUBTASK 70-24-01-240-011

        CF

        300 amps

        Two shots

        90 deg apart

        SUBTASK 70-24-01-240-010

        1. Cracked

        1. Reject

    3. Figure: Location - diaphragm

    Location - diaphragm

Requirements After Job Completion

Follow-On Conditions

NONE