DOC AIRBUS | AMM A320FInstallation of Lavatory H
TASK 25-43-44-400-001-A
Installation of Lavatory H
Self Explanatory
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 25-43-44-860-050-J ** ON A/C NOT FOR ALL
Subtask 25-43-44-420-054-C ** ON A/C NOT FOR ALL
Subtask 25-43-44-410-053-I ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 05:59:30 UTC
Installation of Lavatory H
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
WARNING:
BE CAREFUL WHEN YOU REMOVE OR INSTALL THIS EQUIPMENT. THIS EQUIPMENT IS HEAVY (MORE THAN 12 KG (26.5 lb)) AND CAN CAUSE INJURY AND/OR DAMAGE.
1. Reason for the JobSelf Explanatory
NOTE: More than one person is necessary for this procedure.
2. Job Set-up InformationA. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03FBB1) | Mineral Oil base Grease-General Purpose Medium Temp. - |
| (Material No.03GBB1) | Synthetic Oil base Grease-General Purpose Clay Thickened - |
| (Material No.06AAB1) | Polysulfide Sealant-General Purpose Fillet - |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.12ABC1) | Corrosion Preventive Compound_Water Displacing Soft Film - |
| (Material No.12ACB1) | Corrosion Preventive Compound-Heavy Duty Hard Film - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| No specific | CABLE TIES |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 200 | UPPER HALF FUSELAGE |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 11-00-00-400-007-A | Installation of the ESSO (Scotchcal Labels) |
| TASK 12-24-38-680-001-A | Draining of the Potable Water System (with Electrical Power) |
| TASK 12-33-21-618-001-A | Pre-conditioning through the LP Ground Connection (Aircraft Electrical Power Available) |
| TASK 12-33-21-618-001-A-01 | Pre-conditioning through the HP Ground Connection |
| TASK 12-33-21-618-001-A-02 | Pre-conditioning with the APU |
| TASK 12-33-21-618-001-A-03 | Pre-conditioning through the LP Ground Connection (Aircraft Electrical Power Not Available) |
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| TASK 21-21-00-710-002-A | Operational Test of the Individual Air Outlet |
| TASK 21-23-00-720-002-A | Functional Test of an Air Extraction Point |
| TASK 23-73-00-861-001-A | Energize the Cabin Intercommunication Data System (CIDS) |
| TASK 23-73-00-862-001-A | De-energize the Cabin Intercommunication Data System (CIDS) |
| 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 25-20-00-350-003-A | Repair of the Non-Textile Floor Covering (NTF) |
| TASK 25-21-41-000-001-A | Removal of the Passenger Seats |
| TASK 25-21-41-400-001-A | Installation of the Passenger Seats |
| TASK 25-23-41-000-001-A | Removal of the Ceiling Panels |
| TASK 25-23-41-400-001-A | Installation of the Ceiling Panels |
| TASK 25-23-43-000-001-A | Removal of the Upper Sidewall Panel |
| TASK 25-23-43-400-001-A | Installation of the Upper Sidewall Panel |
| TASK 25-23-44-000-001-A | Removal of the Lower Sidewall Panels (Dado Panels) |
| TASK 25-23-44-400-001-A | Installation of the Lower Sidewall Panels (Dado Panels) |
| TASK 25-23-48-000-001-A | Removal of the Cove Light Panel |
| TASK 25-23-48-400-001-A | Installation of the Cove Light Panel |
| TASK 25-27-46-000-001-A | Removal of the Forward Doghouse |
| TASK 25-27-46-400-001-A | Installation of the Forward Doghouse |
| TASK 25-28-42-000-001-A | Removal of the Non-Textile Floor Covering (NTF) |
| TASK 25-28-42-400-001-A | Installation of the Non-Textile Floor Covering (NTF) |
| TASK 25-45-19-000-001-A | Removal of the Lavatory Door |
| TASK 25-45-19-400-001-A | Installation of the Lavatory Door |
| 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 26-17-00-710-001-A | Operational Test of the Lavatory Smoke-Detection System |
| TASK 33-24-00-710-001-A | Operational Test of the Lavatory Lighting LQ |
| TASK 33-26-00-710-001-A | Operational Test of the Lavatory Lighted Signs WJ |
| TASK 33-51-00-710-007-A | Operational Test of the Emergency Lighting in the Cabin with the 'LIGHT EMER' Pushbutton Switch |
| TASK 35-21-41-000-001-A | Removal of the Emergency Oxygen Containers |
| TASK 35-21-41-400-001-A | Installation of the Emergency Oxygen Containers |
| TASK 35-23-00-710-001-A | Operational Check of Manual Mask Release |
| TASK 38-10-00-614-002-A | Depressurization of the Potable Water System |
| TASK 38-12-00-710-002-A | Operational Test of the Potable Water-Distribution System (with a Ground Air-Supply Cart) |
| TASK 38-12-00-710-004-A | Operational Test of a Potable Water Heater |
| TASK 38-30-00-010-002-A | Removal of the Toilet Drain Lines |
| TASK 38-30-00-410-002-A | Installation of the Toilet Drain Lines |
| 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 38-32-00-710-002-A | Operational Test of the Waste/Water Drain System |
| TASK 51-75-13-916-001-A | Repair to a layer of Moisture-Removing Oil |
| TASK 11-00-00-00 | PLACARDS AND MARKINGS - DESCRIPTION AND OPERATION |
Lavatory SubassembliesSubtask 25-43-44-860-050-J ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001).
(3) Make sure that the potable water system is drained (Ref. AMM TASK 12-24-38-680-001).
(4) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to do the servicing of the water system.
(5) Make sure that the passenger seat adjacent to the lavatory is removed (Ref. AMM TASK 25-21-41-000-001).
(6) Make sure that the applicable ceiling panels are removed (Ref. AMM TASK 25-23-41-000-001).
(7) Make sure that the cove light panel is removed (Ref. AMM TASK 25-23-48-000-001).
(8) Make sure that the upper sidewall panel is removed (Ref. AMM TASK 25-23-43-000-001).
(9) Make sure that the lower sidewall panel is removed (Ref. AMM TASK 25-23-44-000-001).
(10) Make sure that the lavatory door is removed (Ref. AMM TASK 25-45-19-000-001).
(11) Make sure that the toilet assembly is removed (Ref. AMM TASK 38-31-41-000-001).
(12) Make sure that the toilet shroud is removed (Ref. AMM TASK 25-45-22-000-001).
(13) Make sure that the toilet drain line installed behind the lavatory is removed (Ref. AMM TASK 38-30-00-010-002).
(14) In the lavatory, make sure that emergency oxygen container 31WR1 is removed (Ref. AMM TASK 35-21-41-000-001).
(15) Make sure that the Cabin Intercommunication Data System (CIDS) is de- energized
(Ref. AMM TASK 23-73-00-862-001).
Subtask 25-43-44-860-050-O ** ON A/C NOT FOR ALL (1) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001).
WARNING:
MAKE SURE THAT THE POTABLE WATER SYSTEM IS DEPRESSURIZED. A PRESSURIZED SYSTEM CAN CAUSE INJURY TO PERSONS WHEN THEY DO WORK ON IT.
(2) Make sure that the potable water system is depressurized (Ref. AMM TASK 38-10-00-614-002). (3) Make sure that the potable water system is drained (Ref. AMM TASK 12-24-38-680-001).
(4) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to do the servicing of the water system.
(5) Make sure that the passenger seat adjacent to the lavatory is removed (Ref. AMM TASK 25-21-41-000-001).
(6) Make sure that the applicable ceiling panels are removed (Ref. AMM TASK 25-23-41-000-001).
(7) Make sure that the cove light panel is removed (Ref. AMM TASK 25-23-48-000-001).
(8) Make sure that the upper sidewall panel is removed (Ref. AMM TASK 25-23-43-000-001).
(9) Make sure that the lower sidewall panel is removed (Ref. AMM TASK 25-23-44-000-001).
(10) Make sure that the lavatory door is removed (Ref. AMM TASK 25-45-19-000-001).
(11) Make sure that the toilet assembly is removed (Ref. AMM TASK 38-31-41-000-001).
(12) Make sure that the toilet shroud is removed (Ref. AMM TASK 25-45-22-000-001).
(13) Make sure that the toilet drain line installed behind the lavatory is removed (Ref. AMM TASK 38-30-00-010-002).
(14) In the lavatory, make sure that emergency oxygen container 31WR1 is removed (Ref. AMM TASK 35-21-41-000-001).
(15) Make sure that the Cabin Intercommunication Data System (CIDS) is de- energized
(Ref. AMM TASK 23-73-00-862-001).
A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001).
(2) Make sure that the potable water system is drained (Ref. AMM TASK 12-24-38-680-001).
(3) Make sure that the WARNING NOTICE(S) is in position to tell persons not to do the servicing of the water system.
(4) Make sure that the passenger seat adjacent to the lavatory is removed (Ref. AMM TASK 25-21-41-000-001).
(5) Make sure that the doghouse is removed (Ref. AMM TASK 25-27-46-000-001).
(6) Make sure that the ceiling panels are removed (Ref. AMM TASK 25-23-41-000-001).
(7) Make sure that the cove light panel are removed (Ref. AMM TASK 25-23-48-000-001).
(8) Make sure that the upper sidewall panel are removed (Ref. AMM TASK 25-23-43-000-001).
(9) Make sure that the lower sidewall panel is removed (Ref. AMM TASK 25-23-44-000-001).
(10) Make sure that the lavatory door is removed (Ref. AMM TASK 25-45-19-000-001).
(11) Make sure that the toilet assembly is removed (Ref. AMM TASK 38-31-41-000-001).
(12) Make sure that the toilet shroud is removed (Ref. AMM TASK 25-45-22-000-001).
(13) Make sure that the toilet drain line is removed (Ref. AMM TASK 38-30-00-010-002).
(14) Make sure that the emergency oxygen container 31WR1 is removed (Ref. AMM TASK 35-21-41-000-001).
(15) Make sure that the Cabin Intercommunication Data System (CIDS) is de-energized (Ref. AMM TASK 23-73-00-862-001).
Subtask 25-43-44-860-052-A ** ON A/C NOT FOR ALL (1) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001).
(2) Make sure that the potable water system is drained (Ref. AMM TASK 12-24-38-680-001).
(3) Make sure that the WARNING NOTICE(S) is in position to tell persons not to do the servicing of the water system.
(4) Make sure that the passenger seat adjacent to the lavatory is removed (Ref. AMM TASK 25-21-41-000-001).
(5) Make sure that the doghouse is removed (Ref. AMM TASK 25-27-46-000-001).
(6) Make sure that the ceiling panels are removed (Ref. AMM TASK 25-23-41-000-001).
(7) Make sure that the cove light panel are removed (Ref. AMM TASK 25-23-48-000-001).
(8) Make sure that the upper sidewall panel are removed (Ref. AMM TASK 25-23-43-000-001).
(9) Make sure that the lower sidewall panel is removed (Ref. AMM TASK 25-23-44-000-001).
(10) Make sure that the lavatory door is removed (Ref. AMM TASK 25-45-19-000-001).
(11) Make sure that the toilet assembly is removed (Ref. AMM TASK 38-31-41-000-001).
(12) Make sure that the toilet shroud is removed (Ref. AMM TASK 25-45-22-000-001).
(13) Make sure that the toilet drain line is removed (Ref. AMM TASK 38-30-00-010-002).
(14) Make sure that the emergency oxygen container 31WR1 is removed (Ref. AMM TASK 35-21-41-000-001).
(15) Make sure that the Cabin Intercommunication Data System (CIDS) is de-energized (Ref. AMM TASK 23-73-00-862-001).
B. Aircraft Maintenance Configuration
(1) If necessary, examine the Non-Textile Floor covering (NTF).
(a) If the condition of the NTF is not satisfactory, repair it (Ref. AMM TASK 25-20-00-350-003).
(b) If you cannot repair the NTF, replace it (Ref. AMM TASK 25-28-42-000-001) and (Ref. AMM TASK 25-28-42-400-001).
Subtask 25-43-44-865-051-A ** ON A/C NOT FOR ALL (1) If necessary, examine the Non-Textile Floor covering (NTF).
(a) If the condition of the NTF is not satisfactory, repair it (Ref. AMM TASK 25-20-00-350-003).
(b) If you cannot repair the NTF, replace it (Ref. AMM TASK 25-28-42-000-001) and (Ref. AMM TASK 25-28-42-400-001).
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 25-43-44-210-050-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | LIGHTING/EMER LT/CABIN | 79WL | H07 |
| 122VU | AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/CTL | 5HU | U21 |
| 122VU | AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY | 6HU | U19 |
| 2000VU | LIGHT-LAV | 1LQ | J01 |
| 2001VU | WATER SYS-QUANT-IND | 1MA | B06 |
| 2001VU | LAVATORY AFT-OCCUPIED | 11WJ | B04 |
| 2001VU | LAV AFT-HOT WATER-D/L | 2MB | B02 |
D. Preparation for Installation
(1) If necessary, remove the SAFETY BARRIER(S).
(2) Remove sealant from the floor panel and the attached components with the SCRAPER - NON METALLIC.
(a) If the sealant is not easy to remove, use the Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Clean the seat tracks in the area of the lavatory with the Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(4) Do an inspection of the component interfaces and the adjacent area.
(5) Make sure that the parts retained from the removed component are clean and in the correct condition.
(6) Make sure that the placards of the retained/new components are in the correct position and in good condition.
(7) If necessary, install new placards:
(8) Apply Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) to the seat tracks below the lavatory installation at a distance of 750 mm (30.0 in.) at each side of the lavatory installation (Ref. AMM TASK 51-75-13-916-001).
4. Procedure(1) If necessary, remove the SAFETY BARRIER(S).
(2) Remove sealant from the floor panel and the attached components with the SCRAPER - NON METALLIC.
(a) If the sealant is not easy to remove, use the Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Clean the seat tracks in the area of the lavatory with the Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(4) Do an inspection of the component interfaces and the adjacent area.
(5) Make sure that the parts retained from the removed component are clean and in the correct condition.
(6) Make sure that the placards of the retained/new components are in the correct position and in good condition.
(7) If necessary, install new placards:
(8) Apply Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) to the seat tracks below the lavatory installation at a distance of 750 mm (30.0 in.) at each side of the lavatory installation (Ref. AMM TASK 51-75-13-916-001).
Subtask 25-43-44-420-054-C ** ON A/C NOT FOR ALL
A. Assembly of the Lavatory
(1) Connect the lavatory assemblies (1) and (3) as follows:
(a) When you connect/install the components, refer to the match marks made during the removal procedure.
(b) If removed, install the rubber strips (18), (20) and (21) to the floor panel (19).
(c) If removed, install the screws (16) on the floor angle brackets (17).
(d) Put the lavatory assemblies (1) and (3) in position and install the washers (10) and (11) and the screws (9) and (12).
(e) Install the screw (15) in the door side frame.
(f) Install the washers (13) and the screws (14) and (4) in the lavatory assembly (3).
(g) Put the lavatory assemblies (1) and (3) in position on the floor pan assembly (2).
(h) Put the washers (5) in position and install the screws (6).
(i) Put the washers (7) in position and install the screws (8).
(2) Connect the electrical connectors (7), (8), (9) and (10) as follows:
(a) Open the sanitary-cabinet access door (3).
(b) Put the cable assemblies (4) and (2) in position on the mounts (5) and install new CABLE TIES (6).
(c) Remove the CAP-BLANKING from each electrical connector and receptacle.
(d) Make sure that all the electrical connections are clean and in the correct condition.
(e) Connect the cable assembly (2) to the toilet flush switch (1).
(f) Put the bracket (13) in position and install the washers (12) and the bolts (11).
(g) Connect the electrical connectors (9), (8), (7) and (10).
(h) Close the sanitary-cabinet access door (3).
(3) Install the pelmet (1) and the door sill (5) as follows:
(a) Install the door sill (5) with the screws (6) on the floor pan assembly (4).
(b) Tighten the screws (6).
(c) Put the pelmet (1) in position and install the washers (2) and the screws (3).
Subtask 25-43-44-420-055-C ** ON A/C NOT FOR ALL (1) Connect the lavatory assemblies (1) and (3) as follows:
(a) When you connect/install the components, refer to the match marks made during the removal procedure.
(b) If removed, install the rubber strips (18), (20) and (21) to the floor panel (19).
(c) If removed, install the screws (16) on the floor angle brackets (17).
(d) Put the lavatory assemblies (1) and (3) in position and install the washers (10) and (11) and the screws (9) and (12).
(e) Install the screw (15) in the door side frame.
(f) Install the washers (13) and the screws (14) and (4) in the lavatory assembly (3).
(g) Put the lavatory assemblies (1) and (3) in position on the floor pan assembly (2).
(h) Put the washers (5) in position and install the screws (6).
(i) Put the washers (7) in position and install the screws (8).
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(j) Apply a bead of Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) around the joints of the floor panel (2) from the inside of the lavatory assembly. (2) Connect the electrical connectors (7), (8), (9) and (10) as follows:
(a) Open the sanitary-cabinet access door (3).
(b) Put the cable assemblies (4) and (2) in position on the mounts (5) and install new CABLE TIES (6).
(c) Remove the CAP-BLANKING from each electrical connector and receptacle.
(d) Make sure that all the electrical connections are clean and in the correct condition.
(e) Connect the cable assembly (2) to the toilet flush switch (1).
(f) Put the bracket (13) in position and install the washers (12) and the bolts (11).
(g) Connect the electrical connectors (9), (8), (7) and (10).
(h) Close the sanitary-cabinet access door (3).
(3) Install the pelmet (1) and the door sill (5) as follows:
(a) Install the door sill (5) with the screws (6) on the floor pan assembly (4).
(b) Tighten the screws (6).
(c) Put the pelmet (1) in position and install the washers (2) and the screws (3).
B. Installation of the Lower Attachments
(2) Apply Mineral Oil base Grease-General Purpose Medium Temp. - (Material No.03FBB1) to the fittings (2), washers (3), pins (1), screws (4), bolts (9) and bushes (6) and (7).
(3) Apply Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) to the seat tracks in the area of the lavatory.
(4) Put the fittings (2) in position on the seat tracks and install the washers (3) and the screws (4).
(5) Tighten the screws (4).
(6) Carefully lift the lavatory assembly in position on the pins (1) and the fittings (2).
(7) Tighten the pins (1).
(8) Install the bushes (6) and (7), washers (8) and bolts (9).
(9) Tighten the bolts (9).
(10) Apply Corrosion Preventive Compound-Heavy Duty Hard Film - (Material No.12ACB1) to the heads of the bolts (9).
(11) Install the covers (5).
Subtask 25-43-44-420-058-B ** ON A/C NOT FOR ALL WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) When you connect/install the components, refer to the match marks made during the removal procedure.(2) Apply Mineral Oil base Grease-General Purpose Medium Temp. - (Material No.03FBB1) to the fittings (2), washers (3), pins (1), screws (4), bolts (9) and bushes (6) and (7).
(3) Apply Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) to the seat tracks in the area of the lavatory.
(4) Put the fittings (2) in position on the seat tracks and install the washers (3) and the screws (4).
(5) Tighten the screws (4).
(6) Carefully lift the lavatory assembly in position on the pins (1) and the fittings (2).
(7) Tighten the pins (1).
(8) Install the bushes (6) and (7), washers (8) and bolts (9).
(9) Tighten the bolts (9).
(10) Apply Corrosion Preventive Compound-Heavy Duty Hard Film - (Material No.12ACB1) to the heads of the bolts (9).
(11) Install the covers (5).
C. Installation of the Upper Attachments
(1) When you connect/install the components, refer to the match marks made during the removal procedure.
(2) Install the washers (2) and the bolts (1) and (3).
(3) Tighten the bolts (1) and (3).
Subtask 25-43-44-420-059-H ** ON A/C NOT FOR ALL (1) When you connect/install the components, refer to the match marks made during the removal procedure.
(2) Install the washers (2) and the bolts (1) and (3).
(3) Tighten the bolts (1) and (3).
D. Installation of the Water Connections
(2) Connect the potable water connections as follows:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the potable water tube (2) and the potable water hose (7) in position and connect the nuts (1) to the fittings (6).
(c) Make sure that the potable water hose (7) is not twisted.
(d) TORQUE the nuts (1) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft )
.
(e) Put the bonding straps (3) in position and install the washer (4) and the nut (5). Do the bonding (Ref. AMM TASK 20-28-00-912-802).
(f) Tighten the nut (5).
(3) Connect the waste-water drain connection as follows:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the clamps (10) in position on the drain tube (9) and install the nuts (14), spacers (11), washers (12) and screws (13).
(c) Tighten the screws (13).
(d) Put the drain tube (9) in position and install the clamp (8).
(e) Tighten the clamp (8).
Subtask 25-43-44-420-060-B ** ON A/C NOT FOR ALL 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:
MAKE SURE THAT THE EQUIPMENT YOU USE FOR THIS PROCEDURE IS CLEAN AND APPROVED FOR THE POTABLE WATER SYSTEM. IF NOT IT CAN CAUSE CONTAMINATION OF THE POTABLE WATER SYSTEM.
WARNING:
BEFORE YOU DO WORK ON THE POTABLE WATER SYSTEM, CLEAN YOUR HANDS WITH SOAP AND WATER. THIS WILL PREVENT INFECTION. (CONTAMINATION FROM TOILET WASTE IS DANGEROUS TO HEALTH).
(1) When you connect/install the components, refer to the match marks made during the removal procedure.(2) Connect the potable water connections as follows:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the potable water tube (2) and the potable water hose (7) in position and connect the nuts (1) to the fittings (6).
(c) Make sure that the potable water hose (7) is not twisted.
(d) TORQUE the nuts (1) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft )
. (e) Put the bonding straps (3) in position and install the washer (4) and the nut (5). Do the bonding (Ref. AMM TASK 20-28-00-912-802).
(f) Tighten the nut (5).
(3) Connect the waste-water drain connection as follows:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the clamps (10) in position on the drain tube (9) and install the nuts (14), spacers (11), washers (12) and screws (13).
(c) Tighten the screws (13).
(d) Put the drain tube (9) in position and install the clamp (8).
(e) Tighten the clamp (8).
E. Installation of the Air Connections
(1) When you connect/install the components, refer to the match marks made during the removal procedure.
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Connect the electrical connection:
(b) Make sure that all the electrical connections are clean and in the correct condition.
(c) Connect the electrical connector (13).
(4) Connect the ventilation hose:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the clamp (9) and the ventilation hose (7) in position on the ventilation tube (10).
(c) Tighten the clamp (9).
(d) Put the clamp (6) in position on the ventilation hose (7) and install the spacer (8), the washer (4) and the screw (5).
(e) Put the clamp (11) and the ventilation hose (12) in position on the ventilation tube (10).
(f) Tighten the clamp (11).
(5) Connect the air extraction hose:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the air extraction hose (1) and the clamp (2) in position on the tube assembly (3).
(c) Tighten the clamp (2).
Subtask 25-43-44-420-060-H ** ON A/C NOT FOR ALL (1) When you connect/install the components, refer to the match marks made during the removal procedure.
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Connect the electrical connection:
CAUTION:
MAKE SURE THAT THE BONDING STRAP(S) IS(ARE) CONNECTED BEFORE YOU CONNECT THE ELECTRICAL CONNECTOR(S).
(a) Remove the CAP-BLANKING from each electrical connector and receptacle.(b) Make sure that all the electrical connections are clean and in the correct condition.
(c) Connect the electrical connector (13).
(4) Connect the ventilation hose:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the clamp (9) and the ventilation hose (7) in position on the ventilation tube (10).
(c) Tighten the clamp (9).
(d) Put the clamp (6) in position on the ventilation hose (7) and install the spacer (8), the washer (4) and the screw (5).
(e) Put the clamp (11) and the ventilation hose (12) in position on the ventilation tube (10).
(f) Tighten the clamp (11).
(5) Connect the air extraction hose:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the air extraction hose (1) and the clamp (2) in position on the tube assembly (3).
(c) Tighten the clamp (2).
E. Installation of the Air Connections
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Connect the electrical connection:
(b) Make sure that all the electrical connections are clean and in the correct condition.
(c) Connect the electrical connector (13).
(3) Connect the ventilation hoses:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the clamps (7) in position on the ventilation hose (6) and install the spacers (8), the washers (5) and the screws (4).
(c) Put the clamps (9) and (11) and the ventilation hoses (10) and (6) in position on the ventilation tube (12).
(d) Tighten the clamps (9) and (11).
(4) Connect the extraction hose:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the air extraction hose (1) and the clamp (2) in position on the tube assembly (3).
(c) Tighten the clamp (2).
Subtask 25-43-44-410-066-B ** ON A/C NOT FOR ALL (1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Connect the electrical connection:
CAUTION:
MAKE SURE THAT THE BONDING STRAP(S) IS(ARE) CONNECTED BEFORE YOU CONNECT THE ELECTRICAL CONNECTOR(S).
(a) Remove the CAP-BLANKING from each electrical connector and receptacle.(b) Make sure that all the electrical connections are clean and in the correct condition.
(c) Connect the electrical connector (13).
(3) Connect the ventilation hoses:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the clamps (7) in position on the ventilation hose (6) and install the spacers (8), the washers (5) and the screws (4).
(c) Put the clamps (9) and (11) and the ventilation hoses (10) and (6) in position on the ventilation tube (12).
(d) Tighten the clamps (9) and (11).
(4) Connect the extraction hose:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the air extraction hose (1) and the clamp (2) in position on the tube assembly (3).
(c) Tighten the clamp (2).
F. Installation of the Lavatory Equipment
(1) In the lavatory:
(a) Install the toilet assembly (Ref. AMM TASK 38-31-41-400-001).
(b) Do not install the toilet shroud at this time.
(2) Install emergency oxygen container [31WR1] (Ref. AMM TASK 35-21-41-400-001).
(3) Install the lavatory door (Ref. AMM TASK 25-45-19-400-001).
Subtask 25-43-44-865-073-A ** ON A/C NOT FOR ALL (1) In the lavatory:
(a) Install the toilet assembly (Ref. AMM TASK 38-31-41-400-001).
(b) Do not install the toilet shroud at this time.
(2) Install emergency oxygen container [31WR1] (Ref. AMM TASK 35-21-41-400-001).
(3) Install the lavatory door (Ref. AMM TASK 25-45-19-400-001).
G. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 25-43-44-710-050-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | LIGHTING/EMER LT/CABIN | 79WL | H07 |
| 122VU | AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/CTL | 5HU | U21 |
| 122VU | AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY | 6HU | U19 |
| 2000VU | LIGHT-LAV | 1LQ | J01 |
| 2001VU | WATER SYS-QUANT-IND | 1MA | B06 |
| 2001VU | LAVATORY AFT-OCCUPIED | 11WJ | B04 |
| 2001VU | LAV AFT-HOT WATER-D/L | 2MB | B02 |
H. Do an Operational Test of the Lavatory Systems
(1) Energize the Cabin Intercommunication Data System (Ref. AMM TASK 23-73-00-861-001).
(2) Do an operational test of these water/waste systems:
(a) Do a functional test of an air extraction point (Ref. AMM TASK 21-23-00-720-002).
(4) Do the operational test of the individual air outlet system (Ref. AMM TASK 21-21-00-710-002).
(a) Examine the ventilation and air extraction hoses for leaks.
5. Close-up(1) Energize the Cabin Intercommunication Data System (Ref. AMM TASK 23-73-00-861-001).
(2) Do an operational test of these water/waste systems:
- The potable water system (Ref. AMM TASK 38-12-00-710-002)
- The waste/water drain system (Ref. AMM TASK 38-32-00-710-002)
- The toilet system (Ref. AMM TASK 38-31-00-710-009).
(a) Do a functional test of an air extraction point (Ref. AMM TASK 21-23-00-720-002).
(4) Do the operational test of the individual air outlet system (Ref. AMM TASK 21-21-00-710-002).
(a) Examine the ventilation and air extraction hoses for leaks.
NOTE: Leaks are not permitted.
(5) Do an operational test of these electrical systems: - The lavatory lighting (Ref. AMM TASK 33-24-00-710-001),
- The lavatory emergency lighting (Ref. AMM TASK 33-51-00-710-007),
- The lavatory lighted signs (Ref. AMM TASK 33-26-00-710-001),
- The lavatory water heater (Ref. AMM TASK 38-12-00-710-004),
- The lavatory smoke detection (Ref. AMM TASK 26-17-00-710-001),
- The lavatory call light (Ref. AMM D/O 23-73-00-71),
- The passenger address system (Ref. AMM D/O 23-73-00-71),
- The passenger oxygen system (Ref. AMM TASK 35-23-00-710-001).
Subtask 25-43-44-410-053-I ** ON A/C NOT FOR ALL
A. Close Access
(1) Install the toilet shroud (Ref. AMM TASK 25-45-22-400-001).
(2) Install the toilet drain line (Ref. AMM TASK 38-30-00-410-002).
(3) Install the ceiling panels (Ref. AMM TASK 25-23-41-400-001).
(4) Install the lower sidewall panel (Ref. AMM TASK 25-23-44-400-001)
(5) Install the upper sidewall panel (Ref. AMM TASK 25-23-43-400-001).
(6) Install the cove light panel (Ref. AMM TASK 25-23-48-400-001).
(7) Install the passenger seat adjacent to the lavatory (Ref. AMM TASK 25-21-41-400-001).
(8) Remove the WARNING NOTICE(S).
(9) Make sure that the potable water system is drained (Ref. AMM TASK 12-24-38-680-001).
(10) Make sure that the work area is clean and clear of tools and other items.
Subtask 25-43-44-410-053-N ** ON A/C NOT FOR ALL (1) Install the toilet shroud (Ref. AMM TASK 25-45-22-400-001).
(2) Install the toilet drain line (Ref. AMM TASK 38-30-00-410-002).
(3) Install the ceiling panels (Ref. AMM TASK 25-23-41-400-001).
(4) Install the lower sidewall panel (Ref. AMM TASK 25-23-44-400-001)
(5) Install the upper sidewall panel (Ref. AMM TASK 25-23-43-400-001).
(6) Install the cove light panel (Ref. AMM TASK 25-23-48-400-001).
(7) Install the passenger seat adjacent to the lavatory (Ref. AMM TASK 25-21-41-400-001).
(8) Remove the WARNING NOTICE(S).
(9) Make sure that the potable water system is drained (Ref. AMM TASK 12-24-38-680-001).
(10) Make sure that the work area is clean and clear of tools and other items.
A. Close Access
(1) Install the toilet shroud (Ref. AMM TASK 25-45-22-400-001).
(2) Install the toilet drain line (Ref. AMM TASK 38-30-00-410-002).
(3) Install the ceiling panels (Ref. AMM TASK 25-23-41-400-001).
(4) Install the lower sidewall panel (Ref. AMM TASK 25-23-44-400-001)
(5) Install the upper sidewall panel (Ref. AMM TASK 25-23-43-400-001).
(6) Install the cove light panel (Ref. AMM TASK 25-23-48-400-001).
(7) Install the doghouse (Ref. AMM TASK 25-27-46-400-001).
(8) Install the passenger seat adjacent to the lavatory (Ref. AMM TASK 25-21-41-400-001).
(9) Make sure that the work area is clean and clear of tools and other items.
Subtask 25-43-44-862-050-A ** ON A/C NOT FOR ALL (1) Install the toilet shroud (Ref. AMM TASK 25-45-22-400-001).
(2) Install the toilet drain line (Ref. AMM TASK 38-30-00-410-002).
(3) Install the ceiling panels (Ref. AMM TASK 25-23-41-400-001).
(4) Install the lower sidewall panel (Ref. AMM TASK 25-23-44-400-001)
(5) Install the upper sidewall panel (Ref. AMM TASK 25-23-43-400-001).
(6) Install the cove light panel (Ref. AMM TASK 25-23-48-400-001).
(7) Install the doghouse (Ref. AMM TASK 25-27-46-400-001).
(8) Install the passenger seat adjacent to the lavatory (Ref. AMM TASK 25-21-41-400-001).
(9) Make sure that the work area is clean and clear of tools and other items.