TASK 72-43-20-040-001 No. 4 Bearing Rear Face Seal Assembly - Disassemble The Seal Assembly, Disassembly-001

DMC:V2500-A0-72-43-2000-00A-530A-B|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 72-43-20-040-001 No. 4 Bearing Rear Face Seal Assembly - Disassemble The Seal Assembly, Disassembly-001

General

Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the IPC.

Remove and discard the lockwire before parts are disconnected or removed.

Discard all rubber seal rings, cotter pins and seal washers removed in this procedure.

Refer to TASK 72-43-00-990-001 for a sectional view of the No. 4 bearing rear seal assembly.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-43-20-040-051 Disassemble the No. 4 Bearing Rear Seal Assembly

    1. Refer to: Figure

    2. Remove the cover from the No. 4 bearing rear seal assembly.

    3. Put the No. 4 bearing rear seal assembly on a bench so that the seal face is up.

    4. CAUTION

      DO NOT DAMAGE THE FACE OF THE SEAL.

      Make the cotter pins straight on the ends where they were bent.

    5. Remove the cotter pins with a cotter pin extractor.

    6. Remove the collars from the pins.

    7. Remove the No. 4 bearing face seal assembly from the seal ring holder.

    8. Remove the springs from the holes in the seal ring holder.

    9. Remove the seal ring from the groove in the seal ring holder.

    2. Figure: Disassemble the No. 4 bearing rear seal assembly

    Disassemble the No. 4 bearing rear seal assembly

Requirements After Job Completion

Follow-On Conditions

NONE