Installation of a Toilet Assembly

TASK 38-31-41-400-001-A
Installation of a Toilet Assembly

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.

WHEN YOU COMPLETE THE WORK PROCEDURE, CLEAN YOUR HANDS WITH SOAP AND WATER. THIS WILL PREVENT INFECTION (TOILET WASTE IS DANGEROUS FOR HEALTH).

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

NOTE: The procedure for the installation of all the toilet assemblies is the same.

ZONE: 200
FIN: 50MG1
FIN: 50MG13 ** ON A/C NOT FOR ALL
FIN: 50MG14 ** ON A/C NOT FOR ALL
FIN: 50MG2
FIN: 50MG4 ** ON A/C NOT FOR ALL
FIN: 50MG8 ** ON A/C NOT FOR ALL
FIN: 51MG2 ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	AIR SOURCE FILTERED, DRY
No specific	AR	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03FAB1)	Mineral Oil base Grease-- Vaseline or Petrolatum -
(Material No.03PEB1)	Lubricant-Rubber seal Glycerin -
No specific	vinegar (5% acetic acid solution)

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
12	PACKING	AIPC 38-31-01-47-080
14	PACKING	AIPC 38-31-01-47-080
12	PACKING	AIPC 38-31-01-48-080
12	PACKING	AIPC 38-31-04-07-060
12	PACKING	AIPC 38-31-04-07-070
12	PACKING	AIPC 38-31-04-09-080
12	PACKING	AIPC 38-31-04-12-080
8	PACKING	AIPC 38-31-41-30-140
10	RINSE VALVE SCREEN	AIPC 38-31-41-30-230
11	PACKING	AIPC 38-31-41-30-240
11	RINSE VALVE SCREEN	AIPC 38-31-41-40-030
10	PACKING	AIPC 38-31-41-40-040
10	PACKING	AIPC 38-31-41-40-050
10	PACKING	AIPC 38-31-41-40-080
11	RINSE VALVE SCREEN	AIPC 38-31-41-40-130
11	RINSE VALVE SCREEN	AIPC 38-31-41-40-190
12	PACKING	AIPC 38-31-81-40-050
14	PACKING	AIPC 38-31-81-40-050
14	PACKING	AIPC 38-31-81-41-040
14	PACKING	AIPC 38-31-82-40-040
14	PACKING	AIPC 38-31-84-01-050
12	PACKING	AIPC 38-31-84-02-030
14	PACKING	AIPC 38-31-84-02-030
14	PACKING	AIPC 38-31-84-02-100
14	PACKING	AIPC 38-31-84-10-050
14	PACKING	AIPC 38-31-84-11-030
14	PACKING	AIPC 38-31-84-12-050
14	PACKING	AIPC 38-31-84-15-050
14	PACKING	AIPC 38-31-84-16-050
14	PACKING	AIPC 38-31-84-17-060
14	PACKING	AIPC 38-31-84-21-050
14	PACKING	AIPC 38-31-84-22-060
14	PACKING	AIPC 38-31-84-23-040
12	PACKING	AIPC 38-31-84-26-060
14	PACKING	AIPC 38-31-84-26-060

E. Referenced Information

REFERENCE	DESIGNATION
TASK 12-16-38-613-001-A	Servicing of the Toilet System
TASK 20-28-00-912-802-A	Electrical Bonding - General Maintenance Procedure
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 38-10-00-614-001-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 38-10-00-670-002-A	Disinfection of Potable Water System and Discard of Water Filter Elements, if Installed
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)
Toilet Assembly ** ON A/C NOT FOR ALL
Toilet Assembly ** ON A/C NOT FOR ALL
Clamp Installation Requirements
Toilet Assembly ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 38-31-41-860-051-A

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 toilet system is drained (Ref. AMM TASK 38-31-00-680-001).
(3) Make sure that you release the pressure from the potable water system (Ref. AMM TASK 38-10-00-614-002).
(4) Make sure that the lavatory door is open.
(5) Make sure that the WARNING NOTICE(S) is(are) in position on the lavatories.
(6) Make sure that the toilet shroud is removed (Ref. AMM TASK 25-45-22-000-001) (Ref. AMM TASK 25-45-22-000-802).

Subtask 38-31-41-865-065-A

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

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 38-31-41-860-050-B

C. Preparation for Installation
(1) Clean the component interfaces and the adjacent area.
(2) Do the local disinfection of the potable-water system components (Ref. AMM TASK 38-10-00-670-805).

4. Procedure
Subtask 38-31-41-420-053-B ** ON A/C NOT FOR ALL

A. Installation of the Toilet Assembly

Toilet Assembly ** ON A/C NOT FOR ALL

Clamp Installation Requirements ** ON A/C NOT FOR ALL

NOTE: The lavatory modules which have toilet assemblies P/N 14320-002C1 with a manual shutoff valve can also use toilet assemblies with P/N 14330-004B1.
The new lavatory modules which have toilet assemblies P/N 14330-004B1 installed cannot be replaced with the toilet assemblies which have P/N 14320-002C1.
The toilet shroud in the new lavatory modules is smaller. This prevents the installation of toilet assemblies P/N14320-002C1 with a manual shutoff valve.

(1) Make sure that the potable-water shutoff valve (4) is closed.
(2) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to open the potable-water shutoff valve (4).
(3) Put the washers (5) and the toilet assembly (8) in their installation positions.
(4) Install the washers (6) and the bolts (7).
(5) Tighten the bolts (7).
(6) Remove the PLUG-BLANKING from each disconnected line end.
(7) Select the applicable new packing (10):

(8) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to the packing (10).
(9) Install the packing (10).

CAUTION: MAKE SURE THAT THE RINSE VALVE SCREEN IS INSTALLED. IF IT IS NOT INSTALLED, WATER CAN FLOW INTO THE ELECTRICAL COMPARTMENT OR BELOW THE TOILET. THIS CAN CAUSE DAMAGE TO THE EQUIPMENT.

(10) Install the rinse valve screen (11) on the rinse valve (9) as follows:
(a) Visually examine the rinse valve screen (11).
(b) If necessary, clean the rinse valve screen (11) as follows:
1 Put the rinse valve screen (11) in vinegar (5% acetic acid solution) for approximately 30 minutes.
2 Clean the rinse valve screen (11) with clean water.
3 Use the AIR SOURCE FILTERED, DRY to fully dry the rinse valve screen (11).
(c) If necessary, replace the rinse valve screen (11) with a new AIPC 38-31-41-40-130 RINSE VALVE SCREEN (11) or AIPC 38-31-41-40-030 RINSE VALVE SCREEN (11) or AIPC 38-31-41-40-190 RINSE VALVE SCREEN (11):

When the cleaning is not sufficient
When the rinse valve screen (11) is worn
When the rinse valve screen (11) is damaged.

(11) Connect the water line (3) to the rinse valve (9) as follows:

CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:

ONE WRENCH TO HOLD THE UNION, AND
ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.

THIS PREVENTS DAMAGE TO THE PARTS.

(a) Connect the water line (3) to the rinse valve (9).
(b) Tighten the coupling nut of the water line (3).
(12) Remove the PLUG-BLANKING from each disconnected line end.
(13) Select the applicable new packings (12):
(14) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to the packings (12).
(15) Install the packings (12) on the flush lines.
(16) Put the sleeve (14) in position.
(17) Install and lock the clamp (13).
(18) Make sure that the clamp (13) is locked correctly:

The axial adjustment is not more than 6.35 mm (0.25 in.).
The angular misalignment is not more than +/- 4 degree in all the directions around the centerline.

CAUTION: MAKE SURE THAT THE BONDING STRAP(S) IS(ARE) CONNECTED BEFORE YOU CONNECT THE ELECTRICAL CONNECTOR(S).

(19) Connect the bonding strap (17) as follows:
(a) Put the bonding strap (17) in its installation position and install the washers (16), the bolt (15) and the nut (18).
(b) Do the final protection of the bonding point (Ref. AMM TASK 20-28-00-912-802).
(20) Remove the CAP-BLANKING from each electrical connector and receptacle.

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

(21) Connect electrical connector 50MG-A (1) to the flush control unit (2).
(22) Remove the WARNING NOTICE(S) related to the potable-water shutoff valve (4).
(23) Open the potable-water shutoff valve (4).

Subtask 38-31-41-420-053-E ** ON A/C NOT FOR ALL

A. Installation of the Toilet Assembly

Toilet Assembly ** ON A/C NOT FOR ALL

Clamp Installation Requirements ** ON A/C NOT FOR ALL

(1) Make sure that the potable-water shutoff valve (13) is closed.
(2) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to open the potable-water shutoff valve (13).
(3) Put the toilet assembly (1) in its correct installation position.
(4) Install the washers (5) and the screws (4).
(5) Tighten the screws (4).
(6) Remove the PLUG-BLANKING from each disconnected line end.
(7) If you removed the packing (11), do the steps that follow:
(a) Apply a thin layer of Lubricant-Rubber seal Glycerin - (Material No.03PEB1) to the new AIPC 38-31-41-30-240 PACKING (11).
(b) Put the packing (11) in its correct installation position.

CAUTION: MAKE SURE THAT THE RINSE VALVE SCREEN IS INSTALLED. IF IT IS NOT INSTALLED, WATER CAN FLOW INTO THE ELECTRICAL COMPARTMENT OR BELOW THE TOILET. THIS CAN CAUSE DAMAGE TO THE EQUIPMENT.

(8) If you removed the rinse valve screen (10) from the rinse valve (12), install it as follows:
(a) Visually examine the rinse valve screen (10).
(b) If necessary, clean the rinse valve screen (10) as follows:
1 Put the rinse valve screen (10) in vinegar (5% acetic acid solution) for approximately 30 minutes.
2 Clean the rinse valve screen (10) with clean water.
3 Use the AIR SOURCE FILTERED, DRY to fully dry the rinse valve screen (10).
(c) If necessary, replace the rinse valve screen (10) with a new AIPC 38-31-41-30-230 RINSE VALVE SCREEN (10):

When the rinse valve screen (10) is not cleaned satisfactorily
When the rinse valve screen (10) is worn
When the rinse valve screen (10) is damaged.

NOTE: You can push the top end of the rinse valve screen (10) into an oval shape to keep it in position on the rinse valve (12).

(9) If you removed the quick-release clamp (9), do the steps that follow:
(a) Apply a thin layer of Lubricant-Rubber seal Glycerin - (Material No.03PEB1) to the new AIPC 38-31-41-30-140 PACKING (8).
(b) Put the packing (8) and the adapter (7) in their correct installation positions.
(c) Install and lock the quick-release clamp (9).
(d) Make sure that the quick-release clamp (9) is locked correctly.

CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:

ONE WRENCH TO HOLD THE UNION, AND
ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.

THIS PREVENTS DAMAGE TO THE PARTS.

(10) Carefully connect the water line (6) to the adapter (7).
(11) Tighten the coupling nut of the water line (6).
(12) Connect the outlet elbow (17) to the waste water system as follows:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Select the applicable new packings (14):
(c) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to the new packings (14).
(d) Put the packings (14) in their correct installation positions.
(e) Put the sleeve (15) in position.
(f) Install and lock the clamp (16).
(g) Make sure that the clamp (16) is locked correctly:

The axial adjustment is not more than 6.35 mm (0.25 in.).
The angular misalignment is not more than +/- 4 degrees in all the directions around the centerline.

(13) Remove the CAP-BLANKING from each electrical connector and receptacle.

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

(14) Connect the electrical connector (3) to the flush valve assembly (2).
(15) Remove the WARNING NOTICE(S) related to the potable-water shutoff valve (13).
(16) Open the potable-water shutoff valve (13).

Subtask 38-31-41-865-069-A

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

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 38-31-41-613-050-A

C. Do the Servicing of the Toilet System (Ref. AMM TASK 12-16-38-613-001).

Subtask 38-31-41-710-050-B

D. Operational Test
(1) Pressurize the potable water system (Ref. AMM TASK 38-10-00-614-001) (Ref. AMM TASK 38-10-00-614-003).
(2) Do an operational test of the toilet unit (Ref. AMM TASK 38-31-00-710-009).
(3) Make sure that the toilet flushes correctly.

Subtask 38-31-41-790-050-B

E. Leak Test of the Vacuum Toilet System
(1) Do the short leak test of the vacuum toilet system (Ref. AMM TASK 38-31-00-790-802).
(2) Record the results of the test.
(3) Compare the results of the test before the removal procedure and after the installation procedure.
(4) Make sure that the test results recorded after the installation procedure are not more than 10% of the test results recorded before the removal procedure.

Subtask 38-31-41-670-050-A

F. Disinfection of the Potable Water System
(1) If necessary, do the disinfection of the potable water system (Ref. AMM TASK 38-10-00-670-002).

5. Close-up
Subtask 38-31-41-410-053-A

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) Remove the WARNING NOTICE(S).
(4) Close the lavatory door.
(5) Put the system back to the serviceable condition.

Subtask 38-31-41-862-050-A

B. Put the aircraft back to its initial configuration
(1) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.04.01 06:17:47 UTC