W DOC AIRBUS | AMM A320F

Installation of the Waste Drain Valve

TASK 38-31-71-400-001-A
Installation of the Waste Drain Valve

WARNING: DO NOT DO WORK ON THE TOILET WASTE SYSTEM AND THE POTABLE WATER SYSTEM AT THE SAME TIME. THIS WILL PREVENT CONTAMINATION OF THE POTABLE WATER SYSTEM. SUCH CONTAMINATION CAN BE DANGEROUS TO HEALTH.
WARNING: ALWAYS USE RUBBER GLOVES WHEN YOU DO WORK:
  • ON THE TOILET WASTE SYSTEM, OR
  • ON PARTS THAT HAVE CONTAMINATION FROM THE WASTE SYSTEM.
WHEN YOU COMPLETE THE WORK PROCEDURE, CLEAN YOUR HANDS WITH SOAP AND WATER. THIS WILL PREVENT INFECTION (TOILET WASTE IS DANGEROUS FOR HEALTH).
FIN: 3340MM
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
162DW
 B. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
4
PACKING
AIPC 38-31-04-32-070
4
PACKING
AIPC 38-31-84-40-110
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 12-16-38-613-001-A
Servicing of the Toilet System
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 25-55-12-400-001-A
Installation of the Aft Cargo-Compartment Partition at FR65
TASK 38-31-00-680-001-A
Draining of the Toilet System
TASK 38-31-74-400-001-A
Installation of the Waste Tank Drain Line
TASK 52-30-00-860-002-A
Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
F Waste Drain Valve ** ON A/C NOT FOR ALL
F Waste Drain Valve ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 38-31-71-860-050-A
A. Aircraft Maintenance Configuration
   (1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
   (2) Make sure that the toilet system is drained (Ref. AMM TASK 38-31-00-680-001).
Subtask 38-31-71-865-063-A
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACUUM-SYS35MGA06
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACUUM-GEN33MGA08
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-E34MGA04
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-D39MGA03
** ON A/C ALL
2001VUVACU TOIL SYS-LAV PWR-A32MGA01
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACU-SYS35MGA06
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACU-GEN33MGA08
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-G34MGA04
2001VUVACU TOIL SYS-LAV PWR-F39MGA03
2001VUVACU TOIL SYS-LAV PWR-D45MGA02
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-L45MGA02
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-L23MGA05
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-M34MGA04
4. Procedure
Subtask 38-31-71-420-050-A
A. Installation of the Waste Drain Valve 3340MM
   (1) Remove the blanking plugs from the line ends.
   (2) Install a new AIPC 38-31-04-32-070 PACKING (4) or AIPC 38-31-84-40-110 PACKING (4).
   (3) Put the waste drain valve 3340 MM (9) in position.
   (4) Install the bolts (6), the washers (7) and the nuts (8).
   (5) Put the control lever (5) in position.
   (6) Install the bolt (1).
   (7) Install the washer (2) and the nut (3).
   (8) Install the waste drain line (10) (Ref. AMM TASK 38-31-74-400-001).
Subtask 38-31-71-865-065-A
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACUUM-SYS35MGA06
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACUUM-GEN33MGA08
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-E34MGA04
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-D39MGA03
** ON A/C ALL
2001VUVACU TOIL SYS-LAV PWR-A32MGA01
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACU-SYS35MGA06
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACU-GEN33MGA08
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-G34MGA04
2001VUVACU TOIL SYS-LAV PWR-F39MGA03
2001VUVACU TOIL SYS-LAV PWR-D45MGA02
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-L45MGA02
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-L23MGA05
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-M34MGA04
Subtask 38-31-71-790-051-A
C. Do this Leak Test
   (1) Make sure that the drain cap 3345MM is close.
   (2) Put the drain lever 3341MM to the drain position.
   (3) Fill the waste tank with approximately 10 l of water.
   (4) Examine the waste drain valve 3340MM and the valve attachments for leaks.
NOTE: Leaks are not permitted.
   (5) Drain the waste holding tank (Ref. AMM TASK 38-31-00-680-001).
Subtask 38-31-71-613-050-A
D. Service the waste holding tank 3300MM (Ref. AMM TASK 12-16-38-613-001).
5. Close-up
Subtask 38-31-71-410-050-C
A. Close Access
   (1) Install the insulation around the waste drain valve.
   (2) Make sure that the work area is clean and clear of tools and other items.
   (3) Install access panel 162DW (Ref. AMM TASK 25-55-12-400-001).
   (4) Close the aft cargo compartment door (Ref. AMM TASK 52-30-00-860-002).
   (5) Remove the access platform(s).
Subtask 38-31-71-862-050-A
B. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 01:21:00 UTC
"Aviabrain" 2025