DOC AIRBUS | AMM A320FRemoval of the Combustion Chamber Drain Valve (APS 3200)
TASK 49-32-51-000-001-A
Removal of the Combustion Chamber Drain Valve (APS 3200)
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 49-32-51-941-050-A ** ON A/C NOT FOR ALL
Subtask 49-32-51-020-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 01:29:58 UTC
Removal of the Combustion Chamber Drain Valve (APS 3200)
WARNING:
DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS WHEN YOU DO THE MAINTENANCE TASK(S).
WARNING:
OBEY THE FUEL SAFETY PROCEDURES.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| No specific | AR | CONTAINER 5 L (1.32 USGAL) |
| No specific | AR | PLUG - BLANKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 315AL, 316AR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 28-00-00-910-001-A | Fuel Safety Procedures |
| TASK 29-00-00-864-001-A | Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action |
| TASK 52-41-00-010-001-A | Open the APU Doors for Access |
Drain ValveSubtask 49-32-51-941-050-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Obey the fuel safety procedures (Ref. AMM TASK 28-00-00-910-001).
(2) On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(3) Put a warning notice in the cockpit to tell persons not to start the APU.
(4) Make sure that ground fire extinguishing equipment is available.
(5) Make sure that the hydraulic systems are depressurized
(Ref. AMM TASK 29-00-00-864-001).
Subtask 49-32-51-865-050-A ** ON A/C NOT FOR ALL (1) Obey the fuel safety procedures (Ref. AMM TASK 28-00-00-910-001).
(2) On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(3) Put a warning notice in the cockpit to tell persons not to start the APU.
(4) Make sure that ground fire extinguishing equipment is available.
(5) Make sure that the hydraulic systems are depressurized
(Ref. AMM TASK 29-00-00-864-001).
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 49-32-51-010-050-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | APU/APU/CTL | 2KD | L42 |
| 121VU | APU/ECB/SPLY | 1KD | L41 |
C. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the APU access doors 315AL and 316AR.
(2) Open the APU access doors 315AL 316AR (Ref. AMM TASK 52-41-00-010-001).
4. Procedure(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the APU access doors 315AL and 316AR.
(2) Open the APU access doors 315AL 316AR (Ref. AMM TASK 52-41-00-010-001).
Subtask 49-32-51-020-050-A ** ON A/C NOT FOR ALL
A. Removal of the Combustion Chamber Drain Valve.
(2) Disconnect the drain tube (1) from the drain valve (2).
(3) Remove the drain valve (2) from the combustion chamber elbow (4).
(4) Put the PLUG-BLANKING in each disconnected line end.
(5) Remove and discard the packing.
CAUTION:
YOU MUST USE TWO WRENCHES AND HOLD THE COMPONENT WHEN YOU REMOVE/INSTALL THE PIPE COUPLINGS AND/OR UNIONS. THIS PREVENTS DAMAGE TO THE COMPONENT.
CAUTION:
PUT PLASTIC CAPS OR PLUGS ON ALL FUEL AND/OR LUBRICATION SYSTEM COMPONENTS AND LINES. IF YOU USE TAPE, CLOTH, OR METAL CAPS ON THEM, YOU CAN DAMAGE THE APU.
(1) Position a CONTAINER 5 L (1.32 USGAL) below the combustion chamber drain valve (2). (2) Disconnect the drain tube (1) from the drain valve (2).
(3) Remove the drain valve (2) from the combustion chamber elbow (4).
(4) Put the PLUG-BLANKING in each disconnected line end.
(5) Remove and discard the packing.