TASK 71-00-02-000-016 (A1/A5-PPBU) - Remove The Integrated Drive Generator (IDG) And The IDG QAD Coupling, Removal-016

DMC:V2500-A0-71-00-0200-15A-520A-B|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 71-00-02-000-016 (A1/A5-PPBU) - Remove The Integrated Drive Generator (IDG) And The IDG QAD Coupling, Removal-016

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.

For all parts identified in a different Chapter/Section/Subject, the applicable Chapter/Section/Subject comes before the Fig /item number.

Lubricate all threads and abutment faces of nuts and bolts. Refer to SPM TASK 70-64-00-640-001.

Seal all openings when tubes are disconnected, to prevent contamination from unwanted material.

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.

NOTE

To identify the consumable materials refer to the PCI.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Removal/Installation ToolLOCALS888IDG

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 71-00-02-050-001 Remove the Integrated Drive Generator (IDG)

    1. Refer to Figure.

      2. Install the IDG Removal/Installation Tool 1 off.

      1. Put the IDG Removal/Installation tool, S888IDG, in to position below the IDG.

      2. Lift the attachment cradle to the IDG with the hydraulic pump on the IDG Removal/Installation Tool.

      3. Attach the tool to the IDG.

      3. CAUTION

        HELP THE IDG OUT IN A STRAIGHT LINE. THE INPUT SHAFT CAN CATCH AND CAUSE DAMAGE TO THE INPUT SEAL.

        CAUTION

        DO NOT USE EXTERNAL PARTS OR TOOLS TO PULL THE IDG FROM THE GEARBOX. THEY CAN CAUSE DAMAGE.

        Remove the IDG.

      1. Cut and remove the lockwire from the QAD coupling.

      2. NOTE

        If the coupling does not fully open, lightly hit the coupling circumference to help it to open.

        Loosen the QAD coupling and align the two OPEN marks.

      3. Carefully pull the IDG rearwards from the gearbox and remove it.

      4. Remove and discard the packings.

    4. Put applicable covers/caps/plugs on to all the exposed openings and the electrical connections.

    2. SUBTASK 71-00-02-050-002 Remove the IDG QAD Coupling

    1. Refer to Figure.

    2. CAUTION

      DO NOT HIT THE PUNCH TOO HEAVILY, THIS CAN CAUSE DAMAGE TO THE SCREWS.

      NOTE

      The screws can be very tight and should be hit heavily to loosen them. You may use an impact driver as an alternative to a punch.

      Use a flat headed punch to loosen the screws that attach the QAD coupling and the gasket to the gearbox accessory mounting pad.

    3. If the screws still do not turn, loosen them with a punch that has a point. Use the punch at an angle to turn the screws counter-clockwise.

    4. Remove the screws.

    5. Remove the coupling and the gasket.

    6. Discard the gasket.

    7. Put the applicable covers/caps/plugs on the gearbox accessory mounting pad.

    3. SUBTASK 71-00-02-050-023 Remove the IDG Cooling Tubes Overflow, Pressure Couplings, Overflow Drain Valves and Pressure-Fill Valve

    1. Refer to Figure.

    2. Make a note of the couplings ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 02-110) and ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 02-502). They must be put in the same positions on installation.

    3. Remove the couplings ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 02-110) and ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 02-502). Remove and discard the packings ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 02-114) and ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 02-506).

    4. Remove the overflow drain valve ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 01-050) and the pressure-fill valve ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 01-060). Remove and discard the packings ELECTRICAL POWER-INTEGRATED DRIVE GENERATOR (24-21-51, 01-045) and V2500-A5-21-24-51-01A-941A-D (21-24-51, 01-058).

    5. Put applicable covers/caps/plugs on to all exposed openings.

    4. Figure: Remove the Integrated Drive Generator (IDG)

    Remove the Integrated Drive Generator (IDG)

    Figure: Remove the IDG QAD Coupling

    Remove the IDG QAD Coupling

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:S888IDG
Tool Name:Removal/Installation Tool