DOC AIRBUS | AMM A320FInstallation of the Flush Ring
TASK 38-31-66-400-801-A
Installation of the Flush Ring
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Expendable Parts
D. Referenced Information
3. Job Set-up
Subtask 38-31-66-860-050-A
Subtask 38-31-66-420-050-B ** ON A/C NOT FOR ALL
Subtask 38-31-66-410-050-A
[Rev.10 from 2021]
2026.04.01 01:20:53 UTC
Installation of the Flush Ring
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.
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.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | CAP - BLANKING, PLASTIC |
| No specific | Torque wrench: range to between 35 and 25 lbf.in (0.40 and 0.28 m.daN )  |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03FAB1) | Mineral Oil base Grease-- Vaseline or Petrolatum - |
| (Material No.03HCA4) | Synthetic Ester base Grease-O-ring - - |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 1 | PACKING | AIPC 38-31-41-30-080 |
| 8 | PACKINGS | AIPC 38-31-41-30-100 |
| 12 | PACKING | AIPC 38-31-41-30-120 |
| 4 | PACKING | AIPC 38-31-41-30-140 |
| 2 | PACKING | AIPC 38-31-41-40-040 |
| REFERENCE | DESIGNATION |
|---|---|
| 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 25-45-22-400-001-A | Installation of the Toilet Shroud and the Seat |
| TASK 38-10-00-614-002-A | Depressurization of the Potable Water System |
| TASK 38-31-00-710-009-A | Operational Test of the Toilet Unit |
| TASK 38-31-00-790-002-A | Leak Test of the Vacuum Toilet System (VTS) |
Flush Ring AssemblySubtask 38-31-66-860-050-A
A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized from the external power (Ref. AMM TASK 24-42-00-861-001).
(2) Make sure that the potable water system is depressurized (Ref. AMM TASK 38-10-00-614-002).
(3) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to pressurize the potable water system.
(4) Make sure that the manual shut-off valve in each lavatory is closed.
Subtask 38-31-66-865-051-A (1) Make sure that the ground service network is energized from the external power (Ref. AMM TASK 24-42-00-861-001).
(2) Make sure that the potable water system is depressurized (Ref. AMM TASK 38-10-00-614-002).
(3) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to pressurize the potable water system.
(4) Make sure that the manual shut-off valve in each lavatory is closed.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| 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 |
Subtask 38-31-66-420-050-B ** ON A/C NOT FOR ALL
A. Installation of the Flush Ring Assembly
(1) Remove the CAP - BLANKING, PLASTIC from the open end of the anti-siphon valve (13).
(2) Put the flush ring (11) and the anti-siphon valve (13) in position.
(3) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) or Synthetic Ester base Grease-O-ring - - (Material No.03HCA4) to a new AIPC 38-31-41-30-120 PACKING (12).
(4) Put the packing (12) in position between the anti-siphon valve (13) outlet and the flush ring (11) inlet.
(5) Install the washers (7), the screws (6) and the nuts (10).
(6) TORQUE the screws (6) to between 35 and 25 lbf.in (0.40 and 0.28 m.daN ).
(7) Remove the CAP - BLANKING, PLASTIC from all the disconnected line end(s).
(8) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) or Synthetic Ester base Grease-O-ring - - (Material No.03HCA4) to a new AIPC 38-31-41-30-140 PACKING (4).
(9) Put the packing (4) in its installation position.
(10) Place the clamp (5) in its installation position.
(11) Put the flush ring assembly (1) in position on the pedestal (3).
(12) Connect the front clip (9) to the front groove of the pedestal (3).
(13) Engage the quick release fasteners (8).
(14) Install the clamp (5) and lock it.
(15) Make sure that the clamp (5) is locked correctly.
(16) Push the fitting (14) in and install the vent tube (2) in the anti-siphon valve (13).
Subtask 38-31-66-420-050-C ** ON A/C NOT FOR ALL (1) Remove the CAP - BLANKING, PLASTIC from the open end of the anti-siphon valve (13).
(2) Put the flush ring (11) and the anti-siphon valve (13) in position.
(3) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) or Synthetic Ester base Grease-O-ring - - (Material No.03HCA4) to a new AIPC 38-31-41-30-120 PACKING (12).
(4) Put the packing (12) in position between the anti-siphon valve (13) outlet and the flush ring (11) inlet.
(5) Install the washers (7), the screws (6) and the nuts (10).
(6) TORQUE the screws (6) to between 35 and 25 lbf.in (0.40 and 0.28 m.daN )
. (7) Remove the CAP - BLANKING, PLASTIC from all the disconnected line end(s).
(8) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) or Synthetic Ester base Grease-O-ring - - (Material No.03HCA4) to a new AIPC 38-31-41-30-140 PACKING (4).
(9) Put the packing (4) in its installation position.
(10) Place the clamp (5) in its installation position.
(11) Put the flush ring assembly (1) in position on the pedestal (3).
(12) Connect the front clip (9) to the front groove of the pedestal (3).
(13) Engage the quick release fasteners (8).
(14) Install the clamp (5) and lock it.
(15) Make sure that the clamp (5) is locked correctly.
(16) Push the fitting (14) in and install the vent tube (2) in the anti-siphon valve (13).
A. Installation of the Flush Ring Assembly
(1) Remove the CAP - BLANKING, PLASTIC from the open end of the anti-siphon valve (4).
(2) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) or Synthetic Ester base Grease-O-ring - - (Material No.03HCA4) to a new AIPC 38-31-41-40-040 PACKING (2).
(3) Put the packing (2) in position between the anti-siphon valve (4) outlet and the flush ring (1) inlet.
(4) Put the flush ring (1) in position on the bowl (3).
(5) Install the washers (7), the screws (6) and the nuts (5).
(6) Tighten the nuts (5).
Subtask 38-31-66-420-050-D ** ON A/C NOT FOR ALL (1) Remove the CAP - BLANKING, PLASTIC from the open end of the anti-siphon valve (4).
(2) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) or Synthetic Ester base Grease-O-ring - - (Material No.03HCA4) to a new AIPC 38-31-41-40-040 PACKING (2).
(3) Put the packing (2) in position between the anti-siphon valve (4) outlet and the flush ring (1) inlet.
(4) Put the flush ring (1) in position on the bowl (3).
(5) Install the washers (7), the screws (6) and the nuts (5).
(6) Tighten the nuts (5).
A. Installation of the Flush Ring Assembly
(1) For Configuration 1:
(a) Remove the CAP - BLANKING, PLASTIC from the open end of the anti-siphon valve (2).
(b) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) or Synthetic Ester base Grease-O-ring - - (Material No.03HCA4) to a new AIPC 38-31-41-30-080 PACKING (1).
(c) Put the packing (1) in position between the anti-siphon valve (2) outlet and the flush ring (7) inlet.
(d) Put the flush ring (7) in position on the bowl (3).
(e) Install the bolts (6), the washers (4) and the nuts (5).
(f) Tighten the nuts (5).
(2) For Configuration 2:
(a) Remove the CAP - BLANKING, PLASTIC from the open end of the anti-siphon valve (10).
(b) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) or Synthetic Ester base Grease-O-ring - - (Material No.03HCA4) to the new AIPC 38-31-41-30-100 PACKINGS (8).
(c) Install the packings (8) on the ball check fitting (9).
(d) Put the ball check fitting (9) in position.
(e) Put the flush ring (15) in position on the bowl (11).
(f) Install the bolts (14), the washers (12) and the nuts (13).
(g) Tighten the nuts (13).
Subtask 38-31-66-865-052-A (1) For Configuration 1:
(a) Remove the CAP - BLANKING, PLASTIC from the open end of the anti-siphon valve (2).
(b) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) or Synthetic Ester base Grease-O-ring - - (Material No.03HCA4) to a new AIPC 38-31-41-30-080 PACKING (1).
(c) Put the packing (1) in position between the anti-siphon valve (2) outlet and the flush ring (7) inlet.
(d) Put the flush ring (7) in position on the bowl (3).
(e) Install the bolts (6), the washers (4) and the nuts (5).
(f) Tighten the nuts (5).
(2) For Configuration 2:
(a) Remove the CAP - BLANKING, PLASTIC from the open end of the anti-siphon valve (10).
(b) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) or Synthetic Ester base Grease-O-ring - - (Material No.03HCA4) to the new AIPC 38-31-41-30-100 PACKINGS (8).
(c) Install the packings (8) on the ball check fitting (9).
(d) Put the ball check fitting (9) in position.
(e) Put the flush ring (15) in position on the bowl (11).
(f) Install the bolts (14), the washers (12) and the nuts (13).
(g) Tighten the nuts (13).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 38-31-66-710-050-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-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 |
C. Operational Test
(1) Do an operational test and make sure that the toilet assembly operates correctly (Ref. AMM TASK 38-31-00-710-009).
Subtask 38-31-66-790-051-A (1) Do an operational test and make sure that the toilet assembly operates correctly (Ref. AMM TASK 38-31-00-710-009).
D. Leak Test
(1) Do the leak test of the toilet system (Ref. AMM TASK 38-31-00-790-002).
(2) Make sure that there are no leaks:
(a) If there are leaks in the system, repair them.
5. Close-up(1) Do the leak test of the toilet system (Ref. AMM TASK 38-31-00-790-002).
(2) Make sure that there are no leaks:
(a) If there are leaks in the system, repair them.
Subtask 38-31-66-410-050-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Open the manual shut-off valve in each lavatory.
(3) Install the toilet shroud (Ref. AMM TASK 25-45-22-400-001).
(4) Remove the WARNING NOTICE(S).
Subtask 38-31-66-862-050-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Open the manual shut-off valve in each lavatory.
(3) Install the toilet shroud (Ref. AMM TASK 25-45-22-400-001).
(4) Remove the WARNING NOTICE(S).
B. 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).