DOC AIRBUS | AMM A320FCleaning of the Flow Diverter in the Waste Holding Tank
TASK 38-31-00-100-006-A
Cleaning of the Flow Diverter in the Waste Holding Tank
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 38-31-00-861-068-A Subtask 38-31-00-010-081-A
Subtask 38-31-00-410-079-A
[Rev.10 from 2021]
2026.04.01 01:20:01 UTC
Cleaning of the Flow Diverter in the Waste Holding Tank
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
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) |
| No specific | 1 | CONTAINER 10 L(2 1/2 USGAL) |
| No specific | 1 | CONTAINER 70 L (18.5 USGAL) |
| No specific | 1 | HOSE - OVERFLOW |
| No specific | 1 | HOSE - TRANSPARENT, FLEXIBLE |
| No specific | AR | PLUG - BLANKING |
| No specific | 1 | PUMP - HAND |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | 1 | SHEET - PLASTIC |
| No specific | 1 | VALVE - SHUT OFF |
| No specific | 1 | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03JCA9) | Silicone base Grease-Mechanisms and Seals - - |
| (Material No.11CBA1) | Disinfectant and cleaner-Aircraft general - - |
| (Material No.11GCA1) | Deodorant-Aircraft Toilets - - |
| No specific | tank filling-cap assembly (MONOGRAM SANITATION P/N 14320-090) |
| No specific | toilet service-vehicle |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 162DW |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 1 | O-RING | AIPC 38-31-04-34-110 |
| 1 | O-RING | AIPC 38-31-84-44-100 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-16-38-613-001-A | Servicing of the Toilet System |
| TASK 24-42-00-861-001-A | Energize the Ground Service Network from the External Power |
| TASK 24-42-00-862-001-A | De-energize the Ground Service Network Supplied from the External Power |
| TASK 38-31-00-100-003-A | Cleaning of the Waste Holding Tank |
| TASK 38-31-00-100-005-A | Cleaning of the Toilet Waste Lines with Crushed Ice |
| TASK 38-31-00-100-005-A-01 | Cleaning of Vacuum Waste Lines with Cleaners |
| TASK 38-31-00-680-001-A | Draining of the Toilet System |
| TASK 38-31-67-000-001-A | Removal of the Water Separator |
| TASK 38-31-67-400-001-A | Installation of the Water Separator |
| TASK 38-31-67-610-001-A | Inspect Water Separator and Associated Filter Element, and Clean as Necessary |
| TASK 52-30-00-860-001-A | Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
| TASK 52-30-00-860-002-A | Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
Flow Diverters CleaningSubtask 38-31-00-861-068-A Subtask 38-31-00-010-081-A
B. Get Access
(1) Open the AFT cargo-compartment door (Ref. AMM TASK 52-30-00-860-001).
(2) Put the ACCESS PLATFORM 2M (6 FT) in position at Zone 172.
(3) Remove the access panel 162DW.
Subtask 38-31-00-680-057-A (1) Open the AFT cargo-compartment door (Ref. AMM TASK 52-30-00-860-001).
(2) Put the ACCESS PLATFORM 2M (6 FT) in position at Zone 172.
(3) Remove the access panel 162DW.
C. Drain/Flush and Disinfect the Waste System.
(1) Drain and flush the waste holding tank (Ref. AMM TASK 38-31-00-680-001).
(2) Disinfect the waste system:
(a) Put 2 l (0.528 USgal) of Deodorant-Aircraft Toilets - - (Material No.11GCA1) in each toilet bowl and flush them through.
Subtask 38-31-00-865-089-A (1) Drain and flush the waste holding tank (Ref. AMM TASK 38-31-00-680-001).
(2) Disinfect the waste system:
(a) Put 2 l (0.528 USgal) of Deodorant-Aircraft Toilets - - (Material No.11GCA1) in each toilet bowl and flush them through.
NOTE: This procedure is necessary to make sure that the complete toilet system is disinfected.
(3) Drain and flush the waste holding tank (Ref. AMM TASK 38-31-00-680-001). D. Open, safety and tag this(these) circuit breaker(s):
Subtask 38-31-00-860-058-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-GEN | 33MG | A08 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-E | 34MG | A04 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-D | 39MG | A03 |
| ** ON A/C ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-A | 32MG | A01 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-GEN | 33MG | A08 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-G | 34MG | A04 |
| 2001VU | VACU TOIL SYS-LAV PWR-F | 39MG | A03 |
| 2001VU | VACU TOIL SYS-LAV PWR-D | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 23MG | A05 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-M | 34MG | A04 |
E. Aircraft Maintenance Configuration
(1) Put the WARNING NOTICE(S) in position to tell persons not to use:
4. Procedure(1) Put the WARNING NOTICE(S) in position to tell persons not to use:
- The potable water system
- The waste drain system
- The toilets.
WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
NOTE: During the procedure no leaks are permitted.
Subtask 38-31-00-480-057-A A. Install the Tank Filling-Cap-Assembly (MONOGRAM SANITATION P/N 14320-090)
(1) Remove the water separator (Ref. AMM TASK 38-31-67-000-001).
(2) Put the PLUG-BLANKING in each disconnected line end.
(3) Do the service of the water separator (Ref. AMM TASK 38-31-67-610-001).
(4) Lubricate the AIPC 38-31-04-34-110 O-RING (1) or AIPC 38-31-84-44-100 O-RING (1) with Silicone base Grease-Mechanisms and Seals - - (Material No.03JCA9) and put it in position in the tank (2).
(5) Put the tank filling-cap assembly (MONOGRAM SANITATION P/N 14320-090) in position on the tank and attach it with the three clips.
Subtask 38-31-00-110-050-A (1) Remove the water separator (Ref. AMM TASK 38-31-67-000-001).
(2) Put the PLUG-BLANKING in each disconnected line end.
(3) Do the service of the water separator (Ref. AMM TASK 38-31-67-610-001).
(4) Lubricate the AIPC 38-31-04-34-110 O-RING (1) or AIPC 38-31-84-44-100 O-RING (1) with Silicone base Grease-Mechanisms and Seals - - (Material No.03JCA9) and put it in position in the tank (2).
(5) Put the tank filling-cap assembly (MONOGRAM SANITATION P/N 14320-090) in position on the tank and attach it with the three clips.
B. Clean the Flow Diverter
(a) Put 50 l (13.208 USgal) of Disinfectant and cleaner-Aircraft general - - (Material No.11CBA1) into a CONTAINER 70 L (18.5 USGAL).
(2) Prepare the fill set-up:
(a) Attach one end of a 1/2 inch HOSE - TRANSPARENT, FLEXIBLE to the inlet connection on the tank filling-cap assembly.
(b) In the other end of the 1/2 inch filling hose, install a 1/2 inch VALVE - SHUT OFF.
(c) Connect a PUMP - HAND to the end of the 1/2 inch filling hose with the 1/2 inch shut-off valve.
(3) Put the hand pump into the 70 l (18,5 USgasl) container.
(4) Prepare the overflow set-up:
(a) Attach a 3/4 inch HOSE - OVERFLOW to the outlet connection of the tank filling-cap assembly.
(b) Put the end of the 3/4 inch hose in a CONTAINER 10 L(2 1/2 USGAL).
(5) Open the 1/2 inch shut-off valve.
(6) Use the hand pump and move the disinfectant into the waste holding tank.
(7) Disconnect the hand pump and connect the toilet service vehicle to the tank filling-cap assembly.
(8) Slowly fill the waste holding tank with water until the solution starts to flow from the overflow at the tank filling-cap assembly.
(10) Let the solution stay in the waste holding tank for between 6 and 12 hours.
(11) Make sure that the warning notice(s) are set to tell persons not to use:
Subtask 38-31-00-680-060-A WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) Prepare the disinfectant: (a) Put 50 l (13.208 USgal) of Disinfectant and cleaner-Aircraft general - - (Material No.11CBA1) into a CONTAINER 70 L (18.5 USGAL).
(2) Prepare the fill set-up:
(a) Attach one end of a 1/2 inch HOSE - TRANSPARENT, FLEXIBLE to the inlet connection on the tank filling-cap assembly.
(b) In the other end of the 1/2 inch filling hose, install a 1/2 inch VALVE - SHUT OFF.
(c) Connect a PUMP - HAND to the end of the 1/2 inch filling hose with the 1/2 inch shut-off valve.
(3) Put the hand pump into the 70 l (18,5 USgasl) container.
(4) Prepare the overflow set-up:
(a) Attach a 3/4 inch HOSE - OVERFLOW to the outlet connection of the tank filling-cap assembly.
(b) Put the end of the 3/4 inch hose in a CONTAINER 10 L(2 1/2 USGAL).
(5) Open the 1/2 inch shut-off valve.
(6) Use the hand pump and move the disinfectant into the waste holding tank.
(7) Disconnect the hand pump and connect the toilet service vehicle to the tank filling-cap assembly.
(8) Slowly fill the waste holding tank with water until the solution starts to flow from the overflow at the tank filling-cap assembly.
NOTE: To do this step we recommend that you use warm water which is not hotter than 50 DEG.C (122.00 DEG.F).
(9) Stop the filling and close the 1/2 inch shut-off valve. (10) Let the solution stay in the waste holding tank for between 6 and 12 hours.
(11) Make sure that the warning notice(s) are set to tell persons not to use:
- The potable water system,
- The waste drain system,
- The toilets.
C. Drain the Waste Holding Tank
(1) Connect the drain hose of the toilet service-vehicle to the toilet drain connection at the waste service panel 172AR.
(2) Open the 1/2 inch shut-off valve of the tank filling-cap assembly and drain the waste holding tank (Ref. AMM TASK 38-31-00-680-001).
Subtask 38-31-00-170-051-A | ------------------------------------------------------------------------------- |
| ! CAUTION: DO NOT USE A VACUUM OPERATED TOILET SERVICE VEHICLE. ! |
| ! THE VACUUM CAN: ! |
| !-----------------------------------------------------------------------------! |
| ! - DAMAGE THE HOSES OF THE TANK FILLING-CAP ASSEMBLY AND CAN CAUSE ! |
| ! INJURY TO PERSONNEL ! |
| !-----------------------------------------------------------------------------! |
| ! - SUCK UNWANTED MATERIALS THROUGH THE HOSES INTO THE WASTE HOLDING ! |
| ! TANK WHICH CAN DAMAGE THE WASTE TANK. ! |
| ------------------------------------------------------------------------------- |
(1) Connect the drain hose of the toilet service-vehicle to the toilet drain connection at the waste service panel 172AR.
(2) Open the 1/2 inch shut-off valve of the tank filling-cap assembly and drain the waste holding tank (Ref. AMM TASK 38-31-00-680-001).
D. Flush the Waste Holding Tank
(1) Open the cap of the toilet drain connection and the fill and rinse connection at the waste service panel 172AR.
(2) Connect the flush/fill hose (1 inch diameter) of the toilet service vehicle to the fill and rinse connection on the waste service panel 172AR.
(3) Connect the toilet service-vehicle hose-adaptor and 4 inch diameter drain hose to the toilet drain connection on the waste service panel 172AR.
(4) Push the PUSH TO OPEN lever on the waste service panel 172AR.
(5) On the waste service panel 172AR move the drain valve control-handle from the NORMAL to the DRAIN position.
(6) Switch on and operate the toilet service vehicle. Make sure that the water pressure is stable at 2.4 bar (34.81 psi) and the water flow is stable at 38.0 l (10.04 USgal) per minute.
(7) Flush the waste holding tank with approximately 57.0 l (15.06 USgal) of water. Make sure that the water (57.O l (15.06 USgal) completely flows out of the waste holding tank and the drain valve.
(9) Put the drain valve control-handle in the NORMAL position.
(10) Disconnect the flush/fill hose (1 inch diameter) of the toilet service vehicle from the waste service panel 172AR.
(11) Disconnect the toilet service-vehicle adaptor and the 4 inch diameter drain hose from the toilet drain connection on waste service panel 172AR.
(12) Make sure that the work area is clean and clear of tools and other items.
Subtask 38-31-00-080-056-A | ------------------------------------------------------------------------------- |
| ! CAUTION: DO NOT USE A VACUUM OPERATED TOILET SERVICE VEHICLE. ! |
| ! THE VACUUM CAN: ! |
| !-----------------------------------------------------------------------------! |
| ! - DAMAGE THE HOSES OF THE TANK FILLING-CAP ASSEMBLY AND CAN CAUSE ! |
| ! INJURY TO PERSONNEL ! |
| !-----------------------------------------------------------------------------! |
| ! - SUCK UNWANTED MATERIALS THROUGH THE HOSES INTO THE WASTE HOLDING ! |
| ! TANK WHICH CAN DAMAGE THE WASTE TANK. ! |
| ------------------------------------------------------------------------------- |
(1) Open the cap of the toilet drain connection and the fill and rinse connection at the waste service panel 172AR.
(2) Connect the flush/fill hose (1 inch diameter) of the toilet service vehicle to the fill and rinse connection on the waste service panel 172AR.
(3) Connect the toilet service-vehicle hose-adaptor and 4 inch diameter drain hose to the toilet drain connection on the waste service panel 172AR.
(4) Push the PUSH TO OPEN lever on the waste service panel 172AR.
(5) On the waste service panel 172AR move the drain valve control-handle from the NORMAL to the DRAIN position.
(6) Switch on and operate the toilet service vehicle. Make sure that the water pressure is stable at 2.4 bar (34.81 psi) and the water flow is stable at 38.0 l (10.04 USgal) per minute.
(7) Flush the waste holding tank with approximately 57.0 l (15.06 USgal) of water. Make sure that the water (57.O l (15.06 USgal) completely flows out of the waste holding tank and the drain valve.
NOTE: This will take approximately 90 seconds.
(8) Switch off the toilet service vehicle. (9) Put the drain valve control-handle in the NORMAL position.
(10) Disconnect the flush/fill hose (1 inch diameter) of the toilet service vehicle from the waste service panel 172AR.
(11) Disconnect the toilet service-vehicle adaptor and the 4 inch diameter drain hose from the toilet drain connection on waste service panel 172AR.
(12) Make sure that the work area is clean and clear of tools and other items.
E. Remove the Tank Filling-Cap Assembly
(1) Remove, clean and disinfect the tank filling-cap assembly with the applicable tools and items.
(2) Make sure that the work area is clean and clear of tools and other items.
Subtask 38-31-00-410-082-A Subtask 38-31-00-865-090-A (1) Remove, clean and disinfect the tank filling-cap assembly with the applicable tools and items.
(2) Make sure that the work area is clean and clear of tools and other items.
G. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 38-31-00-100-053-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-GEN | 33MG | A08 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-E | 34MG | A04 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-D | 39MG | A03 |
| ** ON A/C ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-A | 32MG | A01 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-GEN | 33MG | A08 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-G | 34MG | A04 |
| 2001VU | VACU TOIL SYS-LAV PWR-F | 39MG | A03 |
| 2001VU | VACU TOIL SYS-LAV PWR-D | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 23MG | A05 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-M | 34MG | A04 |
H. Additional Cleaning
(1) Clean the waste lines with crushed ice (Ref. AMM TASK 38-31-00-100-005).
(2) If necessary, clean the waste holding tank (Ref. AMM TASK 38-31-00-100-003)
Subtask 38-31-00-680-058-A 5. Close-up(1) Clean the waste lines with crushed ice (Ref. AMM TASK 38-31-00-100-005).
(2) If necessary, clean the waste holding tank (Ref. AMM TASK 38-31-00-100-003)
Subtask 38-31-00-410-079-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the WARNING NOTICE(S).
(3) Install the access panel 162DW.
(4) Remove the access platform.
(5) Close the AFT cargo compartment door (Ref. AMM TASK 52-30-00-860-002)
Subtask 38-31-00-613-063-A Subtask 38-31-00-942-065-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the WARNING NOTICE(S).
(3) Install the access panel 162DW.
(4) Remove the access platform.
(5) Close the AFT cargo compartment door (Ref. AMM TASK 52-30-00-860-002)
C. Remove the ground support and maintenance equipment, the special and standard tools and all other items.
Subtask 38-31-00-862-067-A