Removal of a Toilet Assembly

TASK 38-31-41-000-001-A
Removal 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: 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.

NOTE: The procedure for the removal 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	AR	CAP - BLANKING
No specific	AR	PLUG - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.11CBA1)	Disinfectant and cleaner-Aircraft general - -
(Material No.11GCA1)	Deodorant-Aircraft Toilets - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE

D. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network 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 38-10-00-614-002-A	Depressurization of the Potable Water System
TASK 38-30-00-510-001-A	Decontamination of Components of the Waste/Water and Toilet System for Shipping and/or Installation
TASK 38-31-00-680-001-A	Draining of the Toilet System
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
Toilet Assembly ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 38-31-41-861-050-A

A. Aircraft Maintenance Configuration
(1) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

Subtask 38-31-41-680-050-B

B. Draining and Disinfection of the Waste Holding Tank
(1) Drain the toilet system (Ref. AMM TASK 38-31-00-680-001).
(2) Clean the toilet system with disinfectant:
(a) Put 2 l (0.5283 USgal) of Deodorant-Aircraft Toilets - - (Material No.11GCA1) in each toilet bowl and flush them through.

NOTE: This procedure is to make sure that the complete toilet system is prepared for maintenance action.

Subtask 38-31-41-790-051-A

C. 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.

Subtask 38-31-41-865-064-A

D. Open, safety and tag 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 38-31-41-010-051-A

E. Get Access
(1) Make sure that you release the pressure from the potable water system (Ref. AMM TASK 38-10-00-614-002).
(2) Open the lavatory door.
(3) Put the WARNING NOTICE(S) in position at all the related lavatories to tell persons not to use them.
(4) Remove the toilet shroud (Ref. AMM TASK 25-45-22-000-001) (Ref. AMM TASK 25-45-22-000-802).
(5) Use Disinfectant and cleaner-Aircraft general - - (Material No.11CBA1) to clean the toilet assembly.

4. Procedure
Subtask 38-31-41-020-052-B ** ON A/C NOT FOR ALL

A. Removal of the Toilet Assembly

Toilet Assembly ** 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/N 14320-002C1 with a manual shutoff valve.

(1) Close the potable-water shutoff valve (4).
(2) Put the WARNING NOTICE(S) in position to tell persons not to open the potable-water shutoff valve (4).

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.

(3) Disconnect electrical connector 50MG-A (1) from the flush control unit (2).
(4) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.

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

(5) Remove the nut (18), the bolt (15) and the washers (16).
(6) Remove the bonding strap (17).
(7) Unlock and remove the clamp (13).
(8) Move the sleeve (14) to one side.
(9) Remove the packings (12) and discard them.
(10) Put the PLUG-BLANKING in each disconnected line end.

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.

(11) Disconnect the water line (3).
(12) Remove the rinse valve screen (11) from the rinse valve (9).
(13) Remove the packing (10) and discard it.
(14) Put the PLUG-BLANKING in each disconnected line end.
(15) Remove the bolts (7) and the washers (6).
(16) Remove the toilet assembly (8) and the washers (5).
(17) Remove the unwanted water with a Textile-Lint free Cotton - (Material No.14SBA1) .
(18) If you use the removed parts again, clean them with disinfectant (Ref. AMM TASK 38-30-00-510-001).

Subtask 38-31-41-020-052-J ** ON A/C NOT FOR ALL

A. Removal of the Toilet Assembly

Toilet Assembly ** ON A/C NOT FOR ALL

(1) Close the potable-water shutoff valve (13).
(2) Put the WARNING NOTICE(S) in position to tell persons not to open the potable-water shutoff valve (13).

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.

(3) Disconnect the electrical connector (3) from the flush valve assembly (2).
(4) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(5) Disconnect the outlet elbow (17) from the waste water system as follows:
(a) Unlock and remove the clamp (16).
(b) Move the sleeve (15) to one side.
(c) Remove the packings (14) and discard them.
(d) Put the PLUG-BLANKING in each disconnected line end.

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.

(6) Disconnect the water line (6) from the adapter (7).
(7) If necessary:
(a) Unlock and remove the quick-release clamp (9) from the rinse valve (12).
(b) Remove the adapter (7), packing (8), rinse valve screen (10) and packing (11).
(c) Discard the packings (8) and (11).
(8) Put the PLUG-BLANKING in each disconnected line end.
(9) Remove the screws (4) and the washers (5).
(10) Remove the toilet assembly (1).
(11) Remove the unwanted water with a Textile-Lint free Cotton - (Material No.14SBA1) .
(12) If you use the removed parts again, clean them with disinfectant (Ref. AMM TASK 38-30-00-510-001).

[Rev.10 from 2021] 2026.04.01 06:17:26 UTC