DOC AIRBUS | AMM A320FInstallation of the Quick-Attach-Detach (QAD) Adapter of the IDG
TASK 24-21-41-400-803-A
Installation of the Quick-Attach-Detach (QAD) Adapter of the IDG
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 24-21-41-860-065-A
Subtask 24-21-41-210-063-A
Subtask 24-21-41-410-076-A
[Rev.10 from 2021]
2026.03.31 23:20:44 UTC
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.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
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 - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 435 | FAN AND ACCESSORY GEARBOX |
| 445 | FAN AND ACCESSORY GEARBOX |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1) | |
| 437AL, 438AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2) | |
| 447AL, 448AR | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 4 | GASKET | AIPC 24-21-41-60-030 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-21-51-400-806-A | Installation of the Integrated Drive Generator (IDG) - IDG 1(2) |
| TASK 71-13-00-010-803-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-803-A | Closing of the Fan Cowl Doors |
Quick-Attach-Detach (QAD) Adapter of the IDGSubtask 24-21-41-860-065-A
A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).
Subtask 24-21-41-010-081-A (1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate:
- The ENG/MODE selector switch, and
- The ENG/MASTER 1(2) control switch.
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).
B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
4. Procedure(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
Subtask 24-21-41-210-063-A
A. Visual Check of the Mating Surfaces
(1) Remove the protective cover from the accessory gearbox mounting-pad (1).
(2) Do a visual check of the QAD adapter (2) for damage from incorrect shipping or handling.
(3) Do a visual check of the mating surfaces of the QAD adapter (2) and the accessory gearbox mounting-pad (1). They must be smooth and clean.
Subtask 24-21-41-640-065-A (1) Remove the protective cover from the accessory gearbox mounting-pad (1).
(2) Do a visual check of the QAD adapter (2) for damage from incorrect shipping or handling.
(3) Do a visual check of the mating surfaces of the QAD adapter (2) and the accessory gearbox mounting-pad (1). They must be smooth and clean.
B. Lubrication of the QAD Adapter Tension-Bolt
Subtask 24-21-41-420-080-A 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 adapter tension-bolt. C. Installation of the QAD Adapter
(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 hole.
(b) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) to clean the gearbox mounting surface and QAD adapter. Remove the cleaning fluid before it dries.
(2) Install the AIPC 24-21-41-60-030 GASKET (4) on the face of the QAD adapter (2). Make sure that the index pin hole of the QAD adapter (2) is aligned with the index pin hole of the QAD gasket.
(a) Make sure that the stripe of the QAD ring is aligned with the stripe on the adapter plate.
(3) Install the QAD adapter (2) on the accessory gearbox mounting-pad (1) with the flat head screws (3).
(4) Make sure that the words "TOP LEAP" on the QAD adapter are in the top position (12 o'clock).
(5) Use a BRUSH - BRISTLED, FIBER, MEDIUM 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 (3).
(6) TORQUE the screws (3) to between 384 and 356 lbf.in (4.34 and 4.02 m.daN )
.
Subtask 24-21-41-420-081-A 5. Close-upCAUTION:
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 hole.
(b) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) to clean the gearbox mounting surface and QAD adapter. Remove the cleaning fluid before it dries.
(2) Install the AIPC 24-21-41-60-030 GASKET (4) on the face of the QAD adapter (2). Make sure that the index pin hole of the QAD adapter (2) is aligned with the index pin hole of the QAD gasket.
(a) Make sure that the stripe of the QAD ring is aligned with the stripe on the adapter plate.
(3) Install the QAD adapter (2) on the accessory gearbox mounting-pad (1) with the flat head screws (3).
(4) Make sure that the words "TOP LEAP" on the QAD adapter are in the top position (12 o'clock).
(5) Use a BRUSH - BRISTLED, FIBER, MEDIUM 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 (3).
(6) TORQUE the screws (3) to between 384 and 356 lbf.in (4.34 and 4.02 m.daN )
. Subtask 24-21-41-410-076-A
A. Put the aircraft back to its initial configuration.
(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 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(3) Remove the WARNING NOTICE(S).
(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 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(3) Remove the WARNING NOTICE(S).