DOC AIRBUS | AMM A320FCleaning of the Lavatory Blockage with the Vacuum Toilet Blockage-Remover
TASK 38-31-00-100-807-A
Cleaning of the Lavatory Blockage with the Vacuum Toilet Blockage-Remover
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 38-31-00-861-095-A
Subtask 38-31-00-140-052-A
Subtask 38-31-00-410-117-A
[Rev.10 from 2021]
2026.04.01 01:20:14 UTC
Cleaning of the Lavatory Blockage with the Vacuum Toilet Blockage-Remover
WARNING:
BEFORE YOU INSTALL/REMOVE THE GSE TOOL, READ THE MANUFACTURER'S INSTRUCTIONS, AND, WHILE YOU OPERATE THIS TOOL, CAREFULLY OBEY THEM. IF YOU DO NOT DO THIS, INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
WARNING:
ALWAYS USE RUBBER GLOVES WHEN YOU DO WORK:
- ON THE TOILET WASTE SYSTEM, OR
- ON PARTS THAT HAVE CONTAMINATION FROM THE WASTE SYSTEM.
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:
WHEN YOU DO THIS WORK, ALWAYS PUT ON PROTECTIVE GLOVES, GOGGLES AND PROTECTIVE CLOTHING TO PREVENT INJURY.
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:
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.
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) - ADJUSTABLE |
| No specific | 1 | PLUG - BLANKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | SHEET - PLASTIC |
| No specific | AR | WARNING NOTICE(S) |
| VTBR2 | 1 | VACUUM TOILET BLOCKAGE REMOVER |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03FAB1) | Mineral Oil base Grease-- Vaseline or Petrolatum - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 172AR |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 2 | PACKING | AIPC 38-31-01-45-180 |
| 2 | PACKING | AIPC 38-31-01-45-190 |
| 2 | PACKING | AIPC 38-31-01-47-080 |
| 2 | PACKING | AIPC 38-31-01-48-080 |
| 2 | PACKING | AIPC 38-31-81-40-050 |
| 2 | PACKING | AIPC 38-31-84-02-030 |
| 2 | PACKING | AIPC 38-31-84-12-050 |
| 2 | PACKING | AIPC 38-31-84-17-060 |
| 2 | PACKING | AIPC 38-31-84-22-060 |
| 2 | PACKING | AIPC 38-31-84-23-040 |
| 2 | PACKING | AIPC 38-31-84-26-060 |
| 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 25-45-22-000-001-A | Removal of the Toilet Shroud and the Seat |
| TASK 25-45-22-000-802-A | Removal of the Toilet Shroud of the Space Flex Lavatory |
| TASK 25-45-22-400-001-A | Installation of the Toilet Shroud and the Seat |
| TASK 25-45-22-400-802-A | Installation of the Toilet Shroud of the Space Flex Lavatory |
| TASK 38-10-00-614-001-A | Pressurization of the Potable Water System from a Ground Air Supply |
| TASK 38-10-00-614-002-A | Depressurization of the Potable Water System |
| TASK 38-10-00-614-003-A | Pressurization of the Potable Water System with the Compressor |
| TASK 38-10-00-670-805-A | Local Disinfection of the Potable-Water System Components |
| TASK 38-31-00-680-001-A | Draining of the Toilet System |
| TASK 38-31-00-710-009-A | Operational Test of the Toilet Unit |
| TASK 38-31-00-790-802-A | Short Leak Test of the Vacuum Toilet System (VTS) |
| TASK 38-31-41-000-001-A | Removal of a Toilet Assembly |
| TASK 38-31-41-400-001-A | Installation of a Toilet Assembly |
Shell Clamp Installation-RequirementsSubtask 38-31-00-861-095-A
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
Subtask 38-31-00-680-078-A Subtask 38-31-00-865-148-A (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
C. Open, safety and tag this(these) circuit breaker(s):
Subtask 38-31-00-010-113-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 |
| 2001VU | VACU TOIL SYS-LAV PWR-E | 34MG | A04 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-D | 39MG | A03 |
| 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-G | 34MG | A04 |
| 2001VU | VACU TOIL SYS-LAV PWR-F | 39MG | A03 |
| 2001VU | VACU TOIL SYS-LAV PWR-F | 39MG | A03 |
| 2001VU | VACU TOIL SYS-LAV PWR-D | 45MG | A02 |
| 2001VU | VACU TOIL SYS-LAV PWR-D | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 45MG | A02 |
| 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 |
| 2001VU | VACU TOIL SYS-LAV PWR-M | 34MG | A04 |
D. Get Access
(1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the aft fuselage below waste service-panel door 172AR.
(2) Open waste service-panel door 172AR.
(3) Put a WARNING NOTICE(S) in position to tell persons not to operate waste service panel 172AR.
(4) In the cabin, open the related lavatory door.
(5) Put a WARNING NOTICE(S) in position at all the lavatories to tell persons not to use them.
(6) Remove the toilet shroud (Ref. AMM TASK 25-45-22-000-001) or (Ref. AMM TASK 25-45-22-000-802).
(7) Make sure that the potable water system is depressurized (Ref. AMM TASK 38-10-00-614-002).
Subtask 38-31-00-860-085-A (1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the aft fuselage below waste service-panel door 172AR.
(2) Open waste service-panel door 172AR.
(3) Put a WARNING NOTICE(S) in position to tell persons not to operate waste service panel 172AR.
(4) In the cabin, open the related lavatory door.
(5) Put a WARNING NOTICE(S) in position at all the lavatories to tell persons not to use them.
(6) Remove the toilet shroud (Ref. AMM TASK 25-45-22-000-001) or (Ref. AMM TASK 25-45-22-000-802).
(7) Make sure that the potable water system is depressurized (Ref. AMM TASK 38-10-00-614-002).
E. Preparation for Cleaning of the Waste Lines
(1) Put the VTBR2 VACUUM TOILET BLOCKAGE REMOVER in position near the passenger door of the related lavatory.
(2) In the related lavatory, do these steps:
(a) Close the potable-water shutoff valve.
(b) Put the WARNING NOTICE(S) in position to tell persons not to open the potable-water shutoff valve.
(c) Put the SHEET - PLASTIC on the floor of the lavatory and the adjacent areas to give protection to the floor covers.
(d) Disconnect the outlet of the toilet assembly (1) from the vacuum waste pipe (5):
1 Unlock and remove the clamp (3).
2 Move the sleeve (4) axially to the vacuum waste pipe (5).
3 Disconnect the vacuum waste pipe (5) from the outlet of the toilet assembly (1).
4 Remove the sleeve (4).
5 Remove and discard the packing (2) from the outlet of the toilet assembly (1).
(e) If necessary, remove the related toilet assembly to get better access (Ref. AMM TASK 38-31-41-000-001).
(f) Connect the line end of the vacuum waste pipe (5) to the adapter hose (6):
1 Select and install the applicable new packing:
3 Put the packing (2) in position on the line end of the adapter hose (6).
4 Put the sleeve (4) back in its installation position.
5 Align the sleeve (4) and the line end of the vacuum waste line (5) together with the adapter hose (6).
6 Install the clamp (3) and lock it.
7 Make sure that the clamp (3) is locked correctly:
4. Procedure(1) Put the VTBR2 VACUUM TOILET BLOCKAGE REMOVER in position near the passenger door of the related lavatory.
(2) In the related lavatory, do these steps:
(a) Close the potable-water shutoff valve.
(b) Put the WARNING NOTICE(S) in position to tell persons not to open the potable-water shutoff valve.
(c) Put the SHEET - PLASTIC on the floor of the lavatory and the adjacent areas to give protection to the floor covers.
(d) Disconnect the outlet of the toilet assembly (1) from the vacuum waste pipe (5):
1 Unlock and remove the clamp (3).
2 Move the sleeve (4) axially to the vacuum waste pipe (5).
3 Disconnect the vacuum waste pipe (5) from the outlet of the toilet assembly (1).
4 Remove the sleeve (4).
5 Remove and discard the packing (2) from the outlet of the toilet assembly (1).
NOTE: It is not necessary to remove the packing (2) from the vacuum waste pipe (5) at this time.
6 Put the PLUG - BLANKING in the disconnected line end of the outlet of the toilet assembly (1). (e) If necessary, remove the related toilet assembly to get better access (Ref. AMM TASK 38-31-41-000-001).
(f) Connect the line end of the vacuum waste pipe (5) to the adapter hose (6):
1 Select and install the applicable new packing:
- AIPC 38-31-01-47-080 PACKING (2)
or - AIPC 38-31-01-48-080 PACKING (2)
or - AIPC 38-31-01-45-180 PACKING (2)
or - AIPC 38-31-01-45-190 PACKING (2)
or - AIPC 38-31-81-40-050 PACKING (2)
or - AIPC 38-31-84-02-030 PACKING (2)
or - AIPC 38-31-84-12-050 PACKING (2)
or - AIPC 38-31-84-17-060 PACKING (2)
or - AIPC 38-31-84-22-060 PACKING (2)
or - AIPC 38-31-84-23-040 PACKING (2)
or - AIPC 38-31-84-26-060 PACKING (2)
3 Put the packing (2) in position on the line end of the adapter hose (6).
4 Put the sleeve (4) back in its installation position.
5 Align the sleeve (4) and the line end of the vacuum waste line (5) together with the adapter hose (6).
6 Install the clamp (3) and lock it.
7 Make sure that the clamp (3) is locked correctly:
- The axial adjustment is more than 6.35 mm (0.25 in.)
- The angular misalignment is +/- 4 deg. in all directions around the centerline.
Subtask 38-31-00-140-052-A
A. Cleaning of the Blockage in the Waste Line
(1) Refer to the user manual of the VTBR2 VACUUM TOILET BLOCKAGE REMOVER to do the cleaning procedure.
Subtask 38-31-00-210-065-A (1) Refer to the user manual of the VTBR2 VACUUM TOILET BLOCKAGE REMOVER to do the cleaning procedure.
B. Inspection
(1) Examine the inner side of the vacuum-toilet blockage-remover tank through the sight glass (7).
(2) Make sure that you can see the waste in the vacuum-toilet blockage-remover tank.
(3) If you cannot see the waste in the vacuum-toilet blockage-remover tank, do the cleaning procedure again.
Subtask 38-31-00-860-086-A (1) Examine the inner side of the vacuum-toilet blockage-remover tank through the sight glass (7).
(2) Make sure that you can see the waste in the vacuum-toilet blockage-remover tank.
(3) If you cannot see the waste in the vacuum-toilet blockage-remover tank, do the cleaning procedure again.
C. Preparation for the Test
(1) In the related lavatory, do these steps:
(a) Disconnect the adapter hose (6) from the vacuum waste pipe (5):
1 Unlock and remove the clamp (3).
2 Move the sleeve (4) axially to the vacuum waste pipe (5).
3 Disconnect the vacuum waste pipe (5) from the adapter hose (6).
4 Remove the sleeve (4).
5 Remove and discard the packings (2) from the vacuum waste pipe (5) and the adapter hose (6).
(b) If removed, install the related toilet assembly (Ref. AMM TASK 38-31-41-400-001).
(c) Remove the PLUG - BLANKING from the outlet of the toilet assembly (1).
(d) Connect the vacuum waste pipe (5) to the outlet of the toilet assembly (1):
1 Select and install new packing:
3 Put the two packings (2) in position as follows:
5 Align the sleeve (4) and the line end of the vacuum waste pipe (5) together with the outlet of the toilet assembly (1).
6 Install the clamp (3) and lock it.
7 Make sure that the clamp (3) is locked correctly:
(f) Remove the WARNING NOTICE(S) related to the potable-water shutoff valve.
(g) Open the potable-water shutoff valve.
(h) Install the toilet shroud (Ref. AMM TASK 25-45-22-400-001) or (Ref. AMM TASK 25-45-22-400-802).
Subtask 38-31-00-865-149-A (1) In the related lavatory, do these steps:
(a) Disconnect the adapter hose (6) from the vacuum waste pipe (5):
1 Unlock and remove the clamp (3).
2 Move the sleeve (4) axially to the vacuum waste pipe (5).
3 Disconnect the vacuum waste pipe (5) from the adapter hose (6).
4 Remove the sleeve (4).
5 Remove and discard the packings (2) from the vacuum waste pipe (5) and the adapter hose (6).
(b) If removed, install the related toilet assembly (Ref. AMM TASK 38-31-41-400-001).
(c) Remove the PLUG - BLANKING from the outlet of the toilet assembly (1).
(d) Connect the vacuum waste pipe (5) to the outlet of the toilet assembly (1):
1 Select and install new packing:
- AIPC 38-31-01-47-080 PACKING (2)
or - AIPC 38-31-01-48-080 PACKING (2)
or - AIPC 38-31-01-45-180 PACKING (2)
or - AIPC 38-31-01-45-190 PACKING (2)
or - AIPC 38-31-81-40-050 PACKING (2)
or - AIPC 38-31-84-02-030 PACKING (2)
or - AIPC 38-31-84-12-050 PACKING (2)
or - AIPC 38-31-84-17-060 PACKING (2)
or - AIPC 38-31-84-22-060 PACKING (2)
or - AIPC 38-31-84-23-040 PACKING (2)
or - AIPC 38-31-84-26-060 PACKING (2)
3 Put the two packings (2) in position as follows:
- One on the outlet of the toilet assembly (1).
- One on the line end of the vacuum waste pipe (5).
5 Align the sleeve (4) and the line end of the vacuum waste pipe (5) together with the outlet of the toilet assembly (1).
6 Install the clamp (3) and lock it.
7 Make sure that the clamp (3) is locked correctly:
- The axial adjustment is more than 6.35 mm (0.25 in.)
- The angular misalignment is +/- 4 deg. in all directions around the centerline.
(f) Remove the WARNING NOTICE(S) related to the potable-water shutoff valve.
(g) Open the potable-water shutoff valve.
(h) Install the toilet shroud (Ref. AMM TASK 25-45-22-400-001) or (Ref. AMM TASK 25-45-22-400-802).
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 38-31-00-710-073-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 |
| 2001VU | VACU TOIL SYS-LAV PWR-E | 34MG | A04 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-D | 39MG | A03 |
| 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-G | 34MG | A04 |
| 2001VU | VACU TOIL SYS-LAV PWR-F | 39MG | A03 |
| 2001VU | VACU TOIL SYS-LAV PWR-F | 39MG | A03 |
| 2001VU | VACU TOIL SYS-LAV PWR-D | 45MG | A02 |
| 2001VU | VACU TOIL SYS-LAV PWR-D | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 45MG | A02 |
| 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 |
| 2001VU | VACU TOIL SYS-LAV PWR-M | 34MG | A04 |
E. Operational Test
(1) Pressurize the potable water system (Ref. AMM TASK 38-10-00-614-001) or (Ref. AMM TASK 38-10-00-614-003).
(2) Operate the toilet assembly and make sure that it flushes correctly (Ref. AMM TASK 38-31-00-710-009).
Subtask 38-31-00-790-073-A Subtask 38-31-00-613-079-A Subtask 38-31-00-670-051-A (1) Pressurize the potable water system (Ref. AMM TASK 38-10-00-614-001) or (Ref. AMM TASK 38-10-00-614-003).
(2) Operate the toilet assembly and make sure that it flushes correctly (Ref. AMM TASK 38-31-00-710-009).
H. Disinfection of the Potable Water System
(1) If necessary, do the local disinfection of the potable-water system components (Ref. AMM TASK 38-10-00-670-805).
5. Close-up(1) If necessary, do the local disinfection of the potable-water system components (Ref. AMM TASK 38-10-00-670-805).
Subtask 38-31-00-410-117-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Depressurize the potable water system (Ref. AMM TASK 38-10-00-614-002).
(3) Remove the WARNING NOTICE(S) from all the lavatories.
(4) In the cabin, close the related lavatory door.
(5) Remove the WARNING NOTICE(S) from waste service-panel door 172AR.
(6) At the aft fuselage, close waste service-panel door 172AR.
(7) Remove the access platform(s).
(8) Put the system back to the serviceable condition.
Subtask 38-31-00-942-077-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Depressurize the potable water system (Ref. AMM TASK 38-10-00-614-002).
(3) Remove the WARNING NOTICE(S) from all the lavatories.
(4) In the cabin, close the related lavatory door.
(5) Remove the WARNING NOTICE(S) from waste service-panel door 172AR.
(6) At the aft fuselage, close waste service-panel door 172AR.
(7) Remove the access platform(s).
(8) Put the system back to the serviceable condition.
B. Removal of the Ground Support Equipment
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
Subtask 38-31-00-862-093-A (1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
C. Put the aircraft back to its initial configuration
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).