Installation of the Quick-Attach-Detach (QAD) Adapter of the IDG

TASK 24-21-41-400-010-B
Installation of the Quick-Attach-Detach (QAD) Adapter of the IDG

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

FIN: 4000XU ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	COTTON SWAB
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 348 and 324 lbf.in (3.93 and 3.66 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03ABA1)	Synthetic base Lubricating Oil-Turbine Engine - -
(Material No.03PBD1)	Lubricant-Anti Seize Nickel & Graphite -
(Material No.08BBB1)	Non Aqueous Cleaner-- Petroleum Based -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
2	GASKET	AIPC 24-21-41-80-030

E. Referenced Information

REFERENCE	DESIGNATION
TASK 24-21-51-400-010-B	Installation of the Integrated Drive Generator - IDG 1(2), (New EPGS)
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
QAD Adapter of the IDG

3. Job Set-up
Subtask 24-21-41-860-059-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU:
(a) Make sure that the WARNING NOTICE(S) to tell persons not to start the engine, is in position.
(2) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2), is in position.

Subtask 24-21-41-010-066-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR

4. Procedure
Subtask 24-21-41-210-057-A ** ON A/C NOT FOR ALL

A. Visual Check of the Connecting Surfaces
(1) Remove the protective cover from the accessory-gearbox mounting pad.
(2) Do a visual check of the QAD adapter (1) for damage from incorrect shipping or handling.
(3) Do a visual check of the connecting surfaces of the QAD adapter (1) and the accessory-gearbox mounting-pad. They must be smooth and clean.

Subtask 24-21-41-640-059-A ** ON A/C NOT FOR ALL

B. Lubrication of the QAD Adapter Tension Bolt

CAUTION: LUBRICATE THE QAD ADAPTER TENSION-BOLT BEFORE YOU INSTALL THE ADAPTER ON THE GEARBOX MOUNTING PAD. NO LUBRICANT ON THE TENSION BOLT CAN CAUSE INCREASED WEAR TO THE TENSION BOLT AND THE BRACKET.

(1) Apply Synthetic base Lubricating Oil-Turbine Engine - - (Material No.03ABA1) to the QAD tension bolt.

Subtask 24-21-41-420-068-A ** ON A/C NOT FOR ALL

C. Installation of the QAD Adapter

CAUTION: DO NOT LET THE LUBRICANT STAY IN THE DOWEL PIN HOLES AND SCREW HOLES OF THE QAD ADAPTER. LUBRICANT BUILDUP CAN CAUSE THE PRESSURE TO INCREASE. INCREASED PRESSURE CAN CAUSE DAMAGE TO THE GEARBOX WHEN YOU INSTALL AND TORQUE THE SCREWS.

(1) Clean the gearbox mounting surface, index pin hole and screw holes.
(a) Use a clean COTTON SWAB and Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) to remove the lubricant from the screw holes and index pin holes.
(b) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) to cleanthe gearbox mounting surface and QAD adapter. Wipe dry before cleaning fluid evaporates.

NOTE: Make sure that the stripe on the QAD ring is aligned with the stripe on the adapter plate.

(2) Install the new AIPC 24-21-41-80-030 GASKET (2) on the face of the QAD adapter (1). Make sure that the index pin hole of the QAD adapter is aligned with the index pin hole of the QAD gasket.
(3) Install the QAD adapter (1) on the accessory-gearbox mounting pad with the screws (3).

NOTE: Make sure that the words "TOP V2500" on the QAD adapter are in the top position (12 o'clock).

(4) Use a brush to apply a thin layer of Lubricant-Anti Seize Nickel & Graphite - (Material No.03PBD1) to the conical surface of the heads of the screws (3) and to the threads of the screws.
(5) TORQUE the screws (3) to between 348 and 324 lbf.in (3.93 and 3.66 m.daN )

to QAD adapter (Ref. AMM TASK 70-23-11-911-013).

Subtask 24-21-41-420-069-A ** ON A/C NOT FOR ALL

D. Install the IDG (Ref. AMM TASK 24-21-51-400-010).

5. Close-up
Subtask 24-21-41-410-062-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.03.31 23:20:40 UTC