DOC AIRBUS | AMM A320FBlockage Removal (Orbital Flush Valve)
TASK 38-30-00-615-002-A
Blockage Removal (Orbital Flush Valve)
Self Explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 38-30-00-861-055-A Subtask 38-30-00-865-085-A
(1) Remove the nuts (3) and the washers (2).
(2) Pull the motor/gear assembly (5) from the orbital flush-valve body (4).
4. Procedure
Subtask 38-30-00-160-051-A ** ON A/C NOT FOR ALL
(1) Turn the shaft (6) to a maximum of 90 degrees (1/4 turn) counterclockwise:
(a) If there is too much resistance, when you turn the shaft (6):
1 Remove the orbital flush-valve body (4) (Ref. AMM TASK 38-31-57-000-001).
2 Send the flush valve assembly to the workshop to clean it.
(2) Make sure that the collected material moves out of the toilet bowl through the waste drain lines.
(3) Remove the COVER - PLASTIC, FILM and clean the toilet assembly.
(4) Turn the shaft (6) clockwise to fully close the orbital flush valve.
Subtask 38-30-00-420-060-D ** ON A/C NOT FOR ALL
(1) Make sure that the shaft (6) aligns with the orbital flush-valve body (4).
(2) Install the spacers (1) on the motor/gear assembly (5).
(3) Put the motor/gear assembly (5) in its installation position in the orbital flush-valve body (4).
(4) Install the washers (2) and the nuts (3).
(5) Tighten the nuts (3).
Subtask 38-30-00-865-086-A
Subtask 38-30-00-410-058-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.05 10:36:34 UTC
Blockage Removal (Orbital Flush 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.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 200
1. Reason for the JobSelf Explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 2 | COVER - PLASTIC, FILM |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | Torque wrench: range to between 6.6 and 5.4 lbf.in (0.07 and 0.06 m.daN )  |
| REFERENCE | DESIGNATION |
|---|---|
| No specific | open wrench (3/16 inch) |
| No specific | tape |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 200 | UPPER HALF FUSELAGE |
| 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 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 38-31-00-710-009-A | Operational Test of the Toilet Unit |
| TASK 38-31-41-000-001-A | Removal of a Toilet Assembly |
| TASK 38-31-41-400-001-A | Installation of a Toilet Assembly |
| TASK 38-31-57-000-001-A | Removal of the Flush Valve |
| TASK 38-31-57-400-001-A | Installation of the Flush Valve |
Toilet Flush Valve - Blockage RemovalSubtask 38-30-00-861-055-A Subtask 38-30-00-865-085-A
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 38-30-00-010-059-A ** ON A/C NOT FOR ALL | 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. Get Access
(2) Remove the toilet shroud (Ref. AMM TASK 25-45-22-000-001).
(3) Put a COVER - PLASTIC, FILM on the toilet bowl and safety it with a tape.
(4) Make sure that the potable-water shutoff valve is in the fully open position.
Subtask 38-30-00-010-059-C ** ON A/C NOT FOR ALL WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
(1) Get access to the toilet which is blocked. (2) Remove the toilet shroud (Ref. AMM TASK 25-45-22-000-001).
(3) Put a COVER - PLASTIC, FILM on the toilet bowl and safety it with a tape.
(4) Make sure that the potable-water shutoff valve is in the fully open position.
C. Get Access
(2) Remove the toilet shroud (Ref. AMM TASK 25-45-22-000-001) (Ref. AMM TASK 25-45-22-000-802).
(3) Put a COVER - PLASTIC, FILM on the toilet bowl and safety it with a tape.
(4) Make sure that the potable-water shutoff valve is in the fully open position.
Subtask 38-30-00-020-060-A ** ON A/C NOT FOR ALL WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
(1) Get access to the toilet which is blocked. (2) Remove the toilet shroud (Ref. AMM TASK 25-45-22-000-001) (Ref. AMM TASK 25-45-22-000-802).
(3) Put a COVER - PLASTIC, FILM on the toilet bowl and safety it with a tape.
(4) Make sure that the potable-water shutoff valve is in the fully open position.
D. Removal of the Motor/Gear Assembly
(2) Pull the motor/gear assembly (1) from the orbital flush-valve body (4).
Subtask 38-30-00-020-060-C ** ON A/C NOT FOR ALL WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
(1) Remove the screws (2), the lock washers (3) and the washers (4). (2) Pull the motor/gear assembly (1) from the orbital flush-valve body (4).
NOTE: When the motor/gear assembly (1) is removed, you can see the shaft (5) of the orbital flush-valve body (4).
D. Removal of the Motor/Gear Assembly
(2) Pull the motor/gear assembly (3) from the orbital flush-valve body (4).
Subtask 38-30-00-020-060-D ** ON A/C NOT FOR ALL WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
(1) Remove the nuts (2) and the washers (1). (2) Pull the motor/gear assembly (3) from the orbital flush-valve body (4).
NOTE: When the motor/gear assembly (3) is removed, you can see the shaft (5) of the orbital flush-valve body (4).
WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
D. Removal of the Motor/Gear Assembly (1) Remove the nuts (3) and the washers (2).
(2) Pull the motor/gear assembly (5) from the orbital flush-valve body (4).
NOTE: You can see the shaft (6) after the removal of the motor/gear assembly (5).
(3) Remove the spacers (1). Subtask 38-30-00-160-051-A ** ON A/C NOT FOR ALL
A. Blockage Removal
(2) Turn the shaft (5) of the disk to the left side a maximum of 90 deg. (1/4 turn) (the left side points to the direction of the shaft):
(a) If there is too much resistance when you turn the shaft (5) (usually a maximum of to between 6.6 and 5.4 lbf.in (0.07 and 0.06 m.daN ) force is necessary to turn the shaft):
1 Remove the toilet assembly (Ref. AMM TASK 38-31-41-000-001).
2 Send the orbital valve to the workshop to clean it.
4 Do step 4.A.(3) again.
(3) Make sure that the collected waste moves out of the toilet bowl through the waste drain lines.
(4) Remove the COVER - PLASTIC, FILM and clean the toilet assembly. Examine the cause for the blockage.
Subtask 38-30-00-420-060-A ** ON A/C NOT FOR ALL WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
(1) Use a open wrench (3/16 inch) to operate the shaft (5) of the disk. (2) Turn the shaft (5) of the disk to the left side a maximum of 90 deg. (1/4 turn) (the left side points to the direction of the shaft):
(a) If there is too much resistance when you turn the shaft (5) (usually a maximum of to between 6.6 and 5.4 lbf.in (0.07 and 0.06 m.daN )
force is necessary to turn the shaft): 1 Remove the toilet assembly (Ref. AMM TASK 38-31-41-000-001).
2 Send the orbital valve to the workshop to clean it.
NOTE: It can be necessary to cut a small hole in the plastic film on the toilet bowl to let air into the toilet bowl.
3 Install the toilet assembly (Ref. AMM TASK 38-31-41-400-001). 4 Do step 4.A.(3) again.
(3) Make sure that the collected waste moves out of the toilet bowl through the waste drain lines.
(4) Remove the COVER - PLASTIC, FILM and clean the toilet assembly. Examine the cause for the blockage.
B. Installation of the Motor/Gear Assembly
(2) Rotate the shaft (5) of the disk to the right to fully close the orbital valve.
(3) Make sure that the shaft (5) aligns with the gear assembly.
(4) Put the motor/gear assembly (1) in position.
(5) Install the washers (4), the lock washers (3) and the screws (2).
Subtask 38-30-00-160-051-D ** ON A/C NOT FOR ALL WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
(1) Make sure that the work area is clean and clear of tools and other items.(2) Rotate the shaft (5) of the disk to the right to fully close the orbital valve.
(3) Make sure that the shaft (5) aligns with the gear assembly.
(4) Put the motor/gear assembly (1) in position.
(5) Install the washers (4), the lock washers (3) and the screws (2).
C. Blockage Removal
(2) Turn the shaft (5) of the disk to the left side a maximum of 90 deg. (1/4 turn) (the left side points to the direction of the shaft):
(a) If there is too much resistance when you turn the shaft (5) (usually a maximum force of to between 6.6 and 5.4 lbf.in (0.07 and 0.06 m.daN ) is necessary to turn the shaft):
1 Remove the toilet assembly (Ref. AMM TASK 38-31-41-000-001).
2 Send the orbital valve to the workshop to clean it.
4 Do step 4.A.(3) again.
(3) Make sure that the collected waste moves out of the toilet bowl through the waste drain lines.
(4) Remove the COVER - PLASTIC, FILM and clean the toilet assembly. Find the cause of blockage.
Subtask 38-30-00-420-060-C ** ON A/C NOT FOR ALL WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
(1) Use a open wrench (3/16 inch) to operate the shaft (5) of the disk. (2) Turn the shaft (5) of the disk to the left side a maximum of 90 deg. (1/4 turn) (the left side points to the direction of the shaft):
(a) If there is too much resistance when you turn the shaft (5) (usually a maximum force of to between 6.6 and 5.4 lbf.in (0.07 and 0.06 m.daN )
is necessary to turn the shaft): 1 Remove the toilet assembly (Ref. AMM TASK 38-31-41-000-001).
2 Send the orbital valve to the workshop to clean it.
NOTE: It can be necessary to cut a small hole in the plastic film on the toilet bowl to let air into the toilet bowl.
3 Install the toilet assembly (Ref. AMM TASK 38-31-41-400-001). 4 Do step 4.A.(3) again.
(3) Make sure that the collected waste moves out of the toilet bowl through the waste drain lines.
(4) Remove the COVER - PLASTIC, FILM and clean the toilet assembly. Find the cause of blockage.
D. Installation of the Motor/Gear Assembly
(2) Turn the shaft (5) of the disk to the right side to fully close the orbital valve.
(3) Make sure that the shaft (5) aligns with the gear assembly.
(4) Put the motor/gear assembly (3) in position.
(5) Install the washers (1) and the nuts (2).
Subtask 38-30-00-160-051-E ** ON A/C NOT FOR ALL WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
(1) Make sure that the work area is clean and clear of tools and other items.(2) Turn the shaft (5) of the disk to the right side to fully close the orbital valve.
(3) Make sure that the shaft (5) aligns with the gear assembly.
(4) Put the motor/gear assembly (3) in position.
(5) Install the washers (1) and the nuts (2).
WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
E. Blockage Removal (1) Turn the shaft (6) to a maximum of 90 degrees (1/4 turn) counterclockwise:
(a) If there is too much resistance, when you turn the shaft (6):
1 Remove the orbital flush-valve body (4) (Ref. AMM TASK 38-31-57-000-001).
2 Send the flush valve assembly to the workshop to clean it.
NOTE: It can be necessary to cut a small hole in the COVER - PLASTIC, FILM on the toilet bowl to let air into the toilet bowl.
3 Install the orbital flush-valve body (4) (Ref. AMM TASK 38-31-57-400-001). (2) Make sure that the collected material moves out of the toilet bowl through the waste drain lines.
(3) Remove the COVER - PLASTIC, FILM and clean the toilet assembly.
(4) Turn the shaft (6) clockwise to fully close the orbital flush valve.
WARNING:
ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN YOU DO THIS TASK.
F. Installation of the Motor/Gear Assembly (1) Make sure that the shaft (6) aligns with the orbital flush-valve body (4).
(2) Install the spacers (1) on the motor/gear assembly (5).
(3) Put the motor/gear assembly (5) in its installation position in the orbital flush-valve body (4).
(4) Install the washers (2) and the nuts (3).
(5) Tighten the nuts (3).
G. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 38-30-00-710-057-A Subtask 38-30-00-613-059-A 5. Close-up| 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 38-30-00-410-058-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the toilet shroud (Ref. AMM TASK 25-45-22-400-001).
(3) Close the lavatory door.
Subtask 38-30-00-410-058-C ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the toilet shroud (Ref. AMM TASK 25-45-22-400-001).
(3) Close the lavatory door.
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the toilet shroud (Ref. AMM TASK 25-45-22-400-001) (Ref. AMM TASK 25-45-22-400-802).
(3) Close the lavatory door.
Subtask 38-30-00-862-054-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the toilet shroud (Ref. AMM TASK 25-45-22-400-001) (Ref. AMM TASK 25-45-22-400-802).
(3) Close the lavatory door.