DOC AIRBUS | AMM A320FCleaning of the Toilet Waste Lines with Negative Pressure Recirculation - Soaking of the Toilet Waste Lines
TASK 38-31-00-100-019-A
Cleaning of the Toilet Waste Lines with Negative Pressure Recirculation - Soaking of the Toilet Waste Lines
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 38-31-00-861-086-A Subtask 38-31-00-680-073-A
Subtask 38-31-00-100-063-A
Subtask 38-31-00-420-050-A
[Rev.10 from 2021]
2026.04.01 01:20:08 UTC
Cleaning of the Toilet Waste Lines with Negative Pressure Recirculation - Soaking of the Toilet Waste Lines
WARNING:
MAKE SURE THAT YOU PUT ALL WATER SAMPLES IN SAMPLING CONTAINERS WHICH THE LABORATORY SUPPLIES. THESE SAMPLING CONTAINERS ARE SPECIALLY PREPARED TO DO MICROBIOLOGICAL TESTS. IF YOU DO NOT USE THE CORRECT CONTAINERS, THIS CAN CAUSE INCORRECT LABORATORY RESULTS. THUS IT WILL NOT BE POSSIBLE TO KNOW THE LEVEL OF CONTAMINATION IN THE POTABLE WATER SYSTEM.
WARNING:
WHEN YOU REMOVE A COMPONENT OF THE TOILET WASTE SYSTEM, ALWAYS DISINFECT THE PART BEFORE YOU PUT IT IN A PLASTIC BAG, THEN SEAL THE BAG.
DO NOT PUT DOCUMENTS INTO THE PLASTIC BAG. SEAL THE BAG FIRST,THEN ATTACH THE DOCUMENTS TO IT.
THIS WILL PREVENT INFECTION OR ILLNESS. CONTAMINATION FROM THE WASTE CAN BE DANGEROUS TO HEALTH.
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:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
USE ONLY THE SPECIFIED MATERIALS AND OBEY THE INSTRUCTIONS FROM THE MATERIAL MANUFACTURERS. OTHER MATERIALS CAN CAUSE DAMAGE TO THE SURFACE PROTECTION OF THE COMPONENTS AND THE RELATED AREA.
NOTE: Tasks 38-31-00-100-004, 38-31-00-100-015, 38-31-00-100-803 and 38-31-00-100-804 are alternative and interchangeable cleaning procedures to task 38-31-00-100-019.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | BAG - VINYL |
| No specific | 1 | BORESCOPE DIA 25 MM (1 IN) - FLEXIBLE |
| No specific | 1 | BRUSH - BRISTLED |
| No specific | 2 | CONTAINER 1000 L(250 USGAL) |
| No specific | 1 | CONTAINER 20L (5 USGAL) |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | SHEET - PLASTIC |
| No specific | AR | WARNING NOTICE(S) |
| CB2010-001 | 1 | KIT-CLEANING,WASTELINE |
| CB2010-001E | 1 | CLEANING KIT |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.08AHC1) | Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - |
| (Material No.11AKB1) | Disinfectant-Potable Water System Hypochlorite - |
| No specific | clean water |
| No specific | water |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 161DW, 162DW |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 5 | PACKING | AIPC 38-31-01-47-080 |
| 5 | PACKINGS | AIPC 38-31-04-26-100 |
| 5 | PACKING | AIPC 38-31-81-40-050 |
| 5 | PACKING | AIPC 38-31-84-32-010 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-15-38-613-001-A | Fill the Potable Water Tank System (Aircraft Electrical Power Available) |
| TASK 12-21-12-100-003-A | Cleaning of the Carpets and Non-Textile Floor Covering (NTF) |
| TASK 12-31-38-660-001-A | Cold Weather Maintenance - Water/Waste |
| 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 25-45-22-000-001-A | Removal of the Toilet Shroud and the Seat |
| TASK 25-45-22-400-001-A | Installation of the Toilet Shroud and the Seat |
| TASK 25-55-12-000-001-A | Removal of the Aft Cargo-Compartment Partition at FR65 |
| TASK 25-55-12-400-001-A | Installation of the Aft Cargo-Compartment Partition at FR65 |
| TASK 38-10-00-614-001-A | Pressurization of the Potable Water System from a Ground Air Supply |
| TASK 38-31-00-040-002-A | DEACTIVATION OF A TOILET ASSEMBLY |
| TASK 38-31-00-440-002-A | REACTIVATION OF A TOILET ASSEMBLY |
| TASK 38-31-00-680-001-A | Draining of the Toilet System |
| TASK 38-31-00-790-002-A | Leak Test of the Vacuum Toilet System (VTS) |
| 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 |
Recirculation Cleaning - Adapter ArrangementSubtask 38-31-00-861-086-A Subtask 38-31-00-680-073-A
B. You must drain the toilet waste system when the outside air temperature is as given in the cold weather procedure (Ref. AMM TASK 12-31-38-660-001).
Subtask 38-31-00-941-072-A C. Safety Precautions
(1) Do the leak test of the vacuum toilet system (Ref. AMM TASK 38-31-00-790-002).
Subtask 38-31-00-010-102-A (1) Do the leak test of the vacuum toilet system (Ref. AMM TASK 38-31-00-790-002).
NOTE: It is necessary to compare the results of the leak test recorded before the removal and after the installation of the component of the vacuum toilet system.
D. Get Access
(1) Open the aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-001).
(2) Set the CARGO-COMPT LIGHT switch 8LU on the service panel 2024VU to the ON position.
(3) Remove the partition panels 161DW and 162DW (Ref. AMM TASK 25-55-12-000-001).
(4) Put the WARNING NOTICE(S) in position at all toilets to tell persons not to use them.
Subtask 38-31-00-613-076-A (1) Open the aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-001).
(2) Set the CARGO-COMPT LIGHT switch 8LU on the service panel 2024VU to the ON position.
(3) Remove the partition panels 161DW and 162DW (Ref. AMM TASK 25-55-12-000-001).
(4) Put the WARNING NOTICE(S) in position at all toilets to tell persons not to use them.
E. Preparation of the Toilet Assemblies
(1) Make sure that sufficient potable water is available, if necessary fill the potable water system (Ref. AMM TASK 12-15-38-613-001).
(2) Pressurize the potable water system (Ref. AMM TASK 38-10-00-614-001).
Subtask 38-31-00-865-132-A (1) Make sure that sufficient potable water is available, if necessary fill the potable water system (Ref. AMM TASK 12-15-38-613-001).
(2) Pressurize the potable water system (Ref. AMM TASK 38-10-00-614-001).
WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
(3) Prepare the toilet assemblies of the left side of the A/C for the leak test. Do not prepare the left most forward lavatory, this will be disconnected from the main vacuum line: WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(a) Put 1.0 l (0.2642 USgal) of the recommended Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) into the toilet bowls. NOTE: Only the tool manufacturer recommended material can be used. Alternative materials must not be used.
(b) Let the toilet bowls soak for 10 minutes. NOTE: It is important not to ignore the cleaning agent soaking. The cleaning agent soaking time is important for the cleaning procedure.
(c) After 10 minutes flush the toilet assemblies two times. F. Open, safety and tag this(these) circuit breaker(s):
Subtask 38-31-00-020-050-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-VACU-SYS | 35MG | A06 |
G. Get Access to the Waste System
(2) Remove the clamshell (7) of the short waste line (1) from the main vacuum line (9).
(3) Remove the short waste line (1) of the waste-tank inlet port.
Subtask 38-31-00-110-071-A WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
(1) Remove the clamshell (7) of the short waste line (1) from the waste-tank inlet port. (2) Remove the clamshell (7) of the short waste line (1) from the main vacuum line (9).
(3) Remove the short waste line (1) of the waste-tank inlet port.
H. Cleaning of the Short Waste Line
(1) Clean the short waste line (1) as follows:
(a) Prepare a solution of Disinfectant-Potable Water System Hypochlorite - (Material No.11AKB1) and water as given in the table.
(b) Put the short waste line (1) in an applicable container with the solution and let it stay for 4 hours.
(c) After 4 hours, remove the short waste line (1) from the container.
(d) If necessary, clean the short waste line (1) with a BRUSH - BRISTLED.
(e) Flush the short waste line (1) with clean water.
Subtask 38-31-00-290-051-A (1) Clean the short waste line (1) as follows:
(a) Prepare a solution of Disinfectant-Potable Water System Hypochlorite - (Material No.11AKB1) and water as given in the table.
| Disinfectant | Water | Strength of solution |
|---|---|---|
| Sodium Hypochlorite 500 ml | 5 l | 10% |
(c) After 4 hours, remove the short waste line (1) from the container.
(d) If necessary, clean the short waste line (1) with a BRUSH - BRISTLED.
(e) Flush the short waste line (1) with clean water.
I. Internal Inspection of the Waste Lines (if necessary)
(1) Use a BORESCOPE DIA 25 MM (1 IN) - FLEXIBLE and do the inspection of the waste line.
(2) If the contamination is as shown in the conditions 1 to 5, cleaning is not necessary.
Subtask 38-31-00-860-075-A (1) Use a BORESCOPE DIA 25 MM (1 IN) - FLEXIBLE and do the inspection of the waste line.
(2) If the contamination is as shown in the conditions 1 to 5, cleaning is not necessary.
J. Connection of the Cleaning Kit
(2) Connect an adapter connector (11) to the aft end of the main vacuum line (9).
(3) Prepare the left most-forward toilet-assembly:
(a) Remove the toilet shroud (Ref. AMM TASK 25-45-22-000-001) from the toilet.
(b) Close the water shutoff valve in the lavatory (Ref. AMM TASK 38-31-00-040-002).
(c) Put a SHEET - PLASTIC on the floor of the lavatory and the adjacent area to give protection to the floor coverings.
(d) Disconnect the toilet assembly:
1 Remove the clamshell (7) and disconnect the toilet assembly (4) from the elbow (3) of the main vacuum line (9).
2 Connect an adapter connector (2) to the elbow (3).
3 Connect the forward end of the purple interconnection hose (8) to the adapter connector (2) on the elbow (3).
4 Make sure that shutoff valves on the hose (8) are closed.
(5) Carry out a visual inspection of CB2010-001 KIT-CLEANING,WASTELINE.
(6) Put the recirculation box on a support outboard of the aft cargo compartment door. This is to make sure that the recirculation pump is at the same level as the aircraft waste line.
(7) Put the supply vessel on the ground near the support for the operating box. Refer to the GSE tool manual.
(8) Put a WASTE FLUID CONTAINER 1000 L(250 USGAL) on the ground near the support for the recirculation box. Refer to the GSE tool manual.
(9) Connect the white feed hose (10) between Connection A (13) and the adapter connector (11).
(10) Make sure that shutoff valves on the white feed hose (10) are closed.
(11) Connect the purple interconnection hose (8) to the hose Connection B (14).
(12) Make sure that shutoff valves on the purple interconnection hose (8) are closed.
(13) Connect the green overflow hose between the reservoir outlet connection and the WASTE FLUID CONTAINER 1000 L(250 USGAL).
(14) Make sure that shutoff valves on the green overflow hose are closed.
(15) Open all the shutoff valves at the hoses when they are correctly connected.
(b) If the Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) are supplied in a container larger than CONTAINER 20L (5 USGAL) do the following:
2 Connect the yellow drain hose (or the PVC supply pipe) to the inlet port of the supply pump (P1).
3 Place the free end of the yellow drain hose (or the PVC supply pipe) into the supply vessel.
4 Open all hose shutoff valves.
5 Connect a compressed air line (Recommended: 7.5 bar (108.78 psi)) to the supply pump (P1) regulator.
6 Operate the pump by opening the air regulator (turn clockwise to open).
4. ProcedureWARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
(1) Make sure that the CB2010-001 KIT-CLEANING,WASTELINE is available. NOTE: The operational box, the supply pump, the adapters and the hoses are part of the KIT-CLEANING,WASTELINE.
(a) As an alternative, you can use a CB2010-001E CLEANING KIT. (2) Connect an adapter connector (11) to the aft end of the main vacuum line (9).
(3) Prepare the left most-forward toilet-assembly:
(a) Remove the toilet shroud (Ref. AMM TASK 25-45-22-000-001) from the toilet.
(b) Close the water shutoff valve in the lavatory (Ref. AMM TASK 38-31-00-040-002).
(c) Put a SHEET - PLASTIC on the floor of the lavatory and the adjacent area to give protection to the floor coverings.
(d) Disconnect the toilet assembly:
1 Remove the clamshell (7) and disconnect the toilet assembly (4) from the elbow (3) of the main vacuum line (9).
2 Connect an adapter connector (2) to the elbow (3).
3 Connect the forward end of the purple interconnection hose (8) to the adapter connector (2) on the elbow (3).
4 Make sure that shutoff valves on the hose (8) are closed.
NOTE: Each hose end has a shutoff valve to prevent the contamination by remaining fluids when you move the hose in the aircraft.
5 In the left side toilets, remove all the toilet shrouds (Ref. AMM TASK 25-45-22-000-001). NOTE: The toilet shrouds are removed so that you have a direct view behind the toilet flush valves.
(4) Drain the waste holding tank (Ref. AMM TASK 38-31-00-680-001). (5) Carry out a visual inspection of CB2010-001 KIT-CLEANING,WASTELINE.
(6) Put the recirculation box on a support outboard of the aft cargo compartment door. This is to make sure that the recirculation pump is at the same level as the aircraft waste line.
(7) Put the supply vessel on the ground near the support for the operating box. Refer to the GSE tool manual.
(8) Put a WASTE FLUID CONTAINER 1000 L(250 USGAL) on the ground near the support for the recirculation box. Refer to the GSE tool manual.
(9) Connect the white feed hose (10) between Connection A (13) and the adapter connector (11).
(10) Make sure that shutoff valves on the white feed hose (10) are closed.
(11) Connect the purple interconnection hose (8) to the hose Connection B (14).
(12) Make sure that shutoff valves on the purple interconnection hose (8) are closed.
(13) Connect the green overflow hose between the reservoir outlet connection and the WASTE FLUID CONTAINER 1000 L(250 USGAL).
(14) Make sure that shutoff valves on the green overflow hose are closed.
(15) Open all the shutoff valves at the hoses when they are correctly connected.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(16) Fill the recirculation box reservoir with approximately 100 l (26.4170 USgal) of Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) : NOTE: Only the tool manufacturer recommended material can be used. Alternative materials must not be used.
(a) Manually fill the recirculation box reservoir with Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) from CONTAINER 20L (5 USGAL). (b) If the Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) are supplied in a container larger than CONTAINER 20L (5 USGAL) do the following:
NOTE: Only the tool manufacturer recommended material can be used. Alternative materials must not be used.
1 Connect the yellow pressure hose between the recirculation box pressure hose connection and the outlet port of the remote supply pump (P1). 2 Connect the yellow drain hose (or the PVC supply pipe) to the inlet port of the supply pump (P1).
3 Place the free end of the yellow drain hose (or the PVC supply pipe) into the supply vessel.
4 Open all hose shutoff valves.
5 Connect a compressed air line (Recommended: 7.5 bar (108.78 psi)) to the supply pump (P1) regulator.
6 Operate the pump by opening the air regulator (turn clockwise to open).
Subtask 38-31-00-100-063-A
A. Recirculation / Cleaning
(1) Check that the hoses shut-off valves are open, and open the pressure regulator.
(2) Set valves F1 (16) and F2 (17) to Position 1.
(3) Connect a compressed air line (Recommended: 7.5 bar (108.78 psi)) to air valve A1 (18).
(4) Start the recirculation pump (P2) by opening the air pressure regulator, to move the Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) through the waste lines.
(5) When the lines are filled with Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) use the air regulator (19).
Subtask 38-31-00-170-056-A (1) Check that the hoses shut-off valves are open, and open the pressure regulator.
(2) Set valves F1 (16) and F2 (17) to Position 1.
(3) Connect a compressed air line (Recommended: 7.5 bar (108.78 psi)) to air valve A1 (18).
(4) Start the recirculation pump (P2) by opening the air pressure regulator, to move the Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) through the waste lines.
(5) When the lines are filled with Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) use the air regulator (19).
NOTE: The air regulator let adjust the speed of the recirculation pump (P2) to a condition where the system still continues to be under lower pressure.
NOTE: You can see the liquid in the translucent hoses.
(6) Continue the recirculation of the Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) at low speed for 2 to 4 hours as necessary. NOTE: The necessary recirculation time is related to the condition of the line before the start of the procedure.
(7) Do a line leakage check at each connection and behind the toilet flush valve. B. Flushing
(1) Stop the recirculation pump (P2).
(2) Open the reservoir outlet valve.
(3) Drain all the used Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) from the recirculation box reservoir into the WASTE FLUID CONTAINER 1000 L(250 USGAL):
(a) If necessary, wash down the inside of the reservoir with water in order to remove any remaining foam.
(4) Close the drain valve when the reservoir is empty.
(5) Disconnect the yellow pressure hose (if used to fill reservoir from external supply vessel) from the reservoir pressure-hose connection (20).
(6) Connect a WATER SUPPLY HOSE to the reservoir pressure-hose connection (20) on the recirculation box.
(7) Fill the recirculation box with fresh water. Reservoir capacity is 270 l (71.33 USgal).
(8) Remove the yellow drain hose from the P1 inlet (if used to fill reservoir from external supply vessel).
(9) Connect the coupling of the yellow drain hose to the reservoir fill adapter (12).
(10) Connect the second end of the yellow drain hose to the WASTE FLUID CONTAINER 1000 L(250 USGAL) on the ground level.
(11) Make sure that the all hose shutoff valves are open.
(12) Start the recirculation pump again.
(13) Flush the vacuum system with fresh water into the WASTE FLUID CONTAINER 1000 L(250 USGAL) until it runs clear.
Subtask 38-31-00-680-072-A (1) Stop the recirculation pump (P2).
(2) Open the reservoir outlet valve.
(3) Drain all the used Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) from the recirculation box reservoir into the WASTE FLUID CONTAINER 1000 L(250 USGAL):
(a) If necessary, wash down the inside of the reservoir with water in order to remove any remaining foam.
(4) Close the drain valve when the reservoir is empty.
(5) Disconnect the yellow pressure hose (if used to fill reservoir from external supply vessel) from the reservoir pressure-hose connection (20).
(6) Connect a WATER SUPPLY HOSE to the reservoir pressure-hose connection (20) on the recirculation box.
(7) Fill the recirculation box with fresh water. Reservoir capacity is 270 l (71.33 USgal).
(8) Remove the yellow drain hose from the P1 inlet (if used to fill reservoir from external supply vessel).
(9) Connect the coupling of the yellow drain hose to the reservoir fill adapter (12).
(10) Connect the second end of the yellow drain hose to the WASTE FLUID CONTAINER 1000 L(250 USGAL) on the ground level.
(11) Make sure that the all hose shutoff valves are open.
(12) Start the recirculation pump again.
(13) Flush the vacuum system with fresh water into the WASTE FLUID CONTAINER 1000 L(250 USGAL) until it runs clear.
C. Drainage of the Vacuum System
(1) Stop the recirculation pump (P2).
(2) Move valve F2 (17) to Position 2.
(3) Start the recirculation pump again. This will cause a pressure decrease in the main vacuum line (9).
(4) Move valve F2 (17) back to Position 1 at approximately 5 minute intervals to let air go into the system.
(5) Do steps C.(2) to (4) again until no water comes out.
(6) Stop the recirculation pump.
5. Close-up(1) Stop the recirculation pump (P2).
(2) Move valve F2 (17) to Position 2.
(3) Start the recirculation pump again. This will cause a pressure decrease in the main vacuum line (9).
(4) Move valve F2 (17) back to Position 1 at approximately 5 minute intervals to let air go into the system.
(5) Do steps C.(2) to (4) again until no water comes out.
(6) Stop the recirculation pump.
NOTE: The material in the WASTE FLUID CONTAINER is 08AHC1 in a used condition that you must discard.
Subtask 38-31-00-420-050-A
A. Close Access to the Waste System
(1) Remove the white feed hose (10).
(2) Close all hose shutoff valves to prevent the contamination by remaining Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) .
(3) Remove the adapter connector (11) from the aft end of the main vacuum line (9).
(4) Put the adapter connector (11) into a BAG - VINYL.
(5) Install a new AIPC 38-31-04-26-100 PACKINGS (5) or AIPC 38-31-84-32-010 PACKING (5) on the waste-tank inlet port.
(6) Move the sleeve (6) over the packing (5).
(7) Install a new AIPC 38-31-04-26-100 PACKINGS (5) or AIPC 38-31-84-32-010 PACKING (5) on the main vacuum line (9).
(8) Move the sleeve (6) over the packing (5).
(9) Install new AIPC 38-31-04-26-100 PACKINGS (5) or AIPC 38-31-84-32-010 PACKING (5) on the short waste line (1).
(10) Install the short waste line (1) between the waste-tank inlet port and the main vacuum line (9).
(11) Install the clamshells (7).
(12) Make sure that the clamshells (7) are installed correctly:
(14) Close shutoff valves on the interconnection hose (8) to prevent the contamination by remaining Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) .
(15) Put the disconnected end of the interconnection hose out of the aircraft for draining.
(16) Remove the adapter connector (2) from the elbow (3) of the left most-forward toilet.
(17) Put the adapter connector (2) into a BAG - VINYL.
(18) Install a new AIPC 38-31-01-47-080 PACKING (5) or AIPC 38-31-81-40-050 PACKING (5) on the toilet assembly (4).
(19) Move the sleeve (6) over the packing (5).
(20) Install a new AIPC 38-31-01-47-080 PACKING (5) or AIPC 38-31-81-40-050 PACKING (5) on the elbow (3).
(21) Install the clamshell (7) to connect the toilet assembly (4) with the elbow (3).
(22) Make sure that the clamshell (7) is installed correctly:
(24) Remove the SHEET - PLASTIC from the floor of the lavatory and the adjacent area.
(25) Install the removed toilet shrouds (Ref. AMM TASK 25-45-22-400-001) of the toilets.
(26) Flush the toilet system a minimum of 10 times to remove all the remaining water from the waste lines.
Subtask 38-31-00-865-133-A (1) Remove the white feed hose (10).
(2) Close all hose shutoff valves to prevent the contamination by remaining Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) .
(3) Remove the adapter connector (11) from the aft end of the main vacuum line (9).
(4) Put the adapter connector (11) into a BAG - VINYL.
(5) Install a new AIPC 38-31-04-26-100 PACKINGS (5) or AIPC 38-31-84-32-010 PACKING (5) on the waste-tank inlet port.
(6) Move the sleeve (6) over the packing (5).
(7) Install a new AIPC 38-31-04-26-100 PACKINGS (5) or AIPC 38-31-84-32-010 PACKING (5) on the main vacuum line (9).
(8) Move the sleeve (6) over the packing (5).
(9) Install new AIPC 38-31-04-26-100 PACKINGS (5) or AIPC 38-31-84-32-010 PACKING (5) on the short waste line (1).
(10) Install the short waste line (1) between the waste-tank inlet port and the main vacuum line (9).
(11) Install the clamshells (7).
(12) Make sure that the clamshells (7) are installed correctly:
- axial adjustment is more than 6.35mm
- angular misalignment is +/- 4 degree in any direction around centerline.
(14) Close shutoff valves on the interconnection hose (8) to prevent the contamination by remaining Aqueous Cleaner-Toilet System Curative De-scaling & Re-circulating - (Material No.08AHC1) .
(15) Put the disconnected end of the interconnection hose out of the aircraft for draining.
(16) Remove the adapter connector (2) from the elbow (3) of the left most-forward toilet.
(17) Put the adapter connector (2) into a BAG - VINYL.
(18) Install a new AIPC 38-31-01-47-080 PACKING (5) or AIPC 38-31-81-40-050 PACKING (5) on the toilet assembly (4).
(19) Move the sleeve (6) over the packing (5).
(20) Install a new AIPC 38-31-01-47-080 PACKING (5) or AIPC 38-31-81-40-050 PACKING (5) on the elbow (3).
(21) Install the clamshell (7) to connect the toilet assembly (4) with the elbow (3).
(22) Make sure that the clamshell (7) is installed correctly:
- axial adjustment is more than 6.35mm
- angular misalignment is +/- 4 degree in any direction around centerline.
(24) Remove the SHEET - PLASTIC from the floor of the lavatory and the adjacent area.
(25) Install the removed toilet shrouds (Ref. AMM TASK 25-45-22-400-001) of the toilets.
(26) Flush the toilet system a minimum of 10 times to remove all the remaining water from the waste lines.
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 38-31-00-110-059-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-VACU-SYS | 35MG | A06 |
C. Cleaning of the Cabin Floor
(1) If there are spills on the floor in the cabin, they must be removed and cleaned (Ref. AMM TASK 12-21-12-100-003).
Subtask 38-31-00-790-067-A (1) If there are spills on the floor in the cabin, they must be removed and cleaned (Ref. AMM TASK 12-21-12-100-003).
D. Leak Test
(1) Do a leak test of the vacuum system and examine the connections for leaks (Ref. AMM TASK 38-31-00-790-002).
Subtask 38-31-00-410-108-A (1) Do a leak test of the vacuum system and examine the connections for leaks (Ref. AMM TASK 38-31-00-790-002).
NOTE: Leaks are not permitted.
E. Close Access
(1) Remove the warning notices from all toilets.
(2) Close the access to the waste holding tank:
(a) Install the removed partition panels 161DW and 162DW at FR65 (Ref. AMM TASK 25-55-12-400-001).
(b) Make sure that the work area is clean and clear of tools and other items.
(c) Set the CARGO-COMPT LIGHT switch 8LU on the service panel 2024VU to the OFF position.
(d) Close the aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-002).
Subtask 38-31-00-942-074-A (1) Remove the warning notices from all toilets.
(2) Close the access to the waste holding tank:
(a) Install the removed partition panels 161DW and 162DW at FR65 (Ref. AMM TASK 25-55-12-400-001).
(b) Make sure that the work area is clean and clear of tools and other items.
(c) Set the CARGO-COMPT LIGHT switch 8LU on the service panel 2024VU to the OFF position.
(d) Close the aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-002).
F. Remove the ground support and maintenance equipment, the special and standard tools and all other items.
Subtask 38-31-00-862-084-A G. Put the aircraft back to its initial configuration.
(1) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).
(1) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).