W DOC AIRBUS | AMM A320F

Installation of the Water Valve

TASK 38-31-55-400-001-A
Installation of the Water Valve

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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).
NOTE: The procedure for the installation of all the water valves is the same.
ZONE: 200
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
1
INSTALLATION TOOL - TIE WRAP
No specific
1
TIE WRAP(S)
No specific
AR
WARNING NOTICE(S)
No specific
1
WRENCH - OPEN END
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.03PEB1)
Lubricant-Rubber seal Glycerin -
(Material No.14QFB1)
Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
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
8
PACKINGS
AIPC 38-31-41-30-040
8
PACKINGS
AIPC 38-31-41-30-080
12
PACKING
AIPC 38-31-41-30-140
3
PACKING
AIPC 38-31-41-30-140
5
PACKING
AIPC 38-31-41-30-180
3
PACKING
AIPC 38-31-41-30-190
10
WATER VALVE SCREEN
AIPC 38-31-41-30-230
9
PACKING
AIPC 38-31-41-30-240
4
WATER VALVE SCREEN
AIPC 38-31-41-40-030
5
PACKING
AIPC 38-31-41-40-040
8
PACKINGS
AIPC 38-31-41-40-040
7
PACKING
AIPC 38-31-41-40-050
8
PACKINGS
AIPC 38-31-41-40-090
3
PACKING
AIPC 38-31-41-40-150
3
PACKING
AIPC 38-31-41-40-190
 E. Referenced Information
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 25-45-22-000-001-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 38-10-00-670-805-A
Local Disinfection of the Potable-Water System Components
TASK 38-31-00-710-009-A
Operational Test of the Toilet Unit
TASK 38-31-56-400-001-A
Installation of the Anti-Syphon Valve
F Valve - Water ** ON A/C NOT FOR ALL
F Valve - Water ** ON A/C NOT FOR ALL
F Valve - Water ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 38-31-55-860-050-A
A. Aircraft Maintenance Configuration
   (1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
Subtask 38-31-55-865-063-A
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACUUM-SYS35MGA06
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACUUM-GEN33MGA08
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-E34MGA04
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-D39MGA03
** ON A/C ALL
2001VUVACU TOIL SYS-LAV PWR-A32MGA01
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACU-SYS35MGA06
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACU-GEN33MGA08
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-G34MGA04
2001VUVACU TOIL SYS-LAV PWR-F39MGA03
2001VUVACU TOIL SYS-LAV PWR-D45MGA02
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-L45MGA02
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-L23MGA05
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-M34MGA04
Subtask 38-31-55-010-058-A ** ON A/C NOT FOR ALL
C. Get Access
F Valve - Water ** ON A/C NOT FOR ALL
   (1) Make sure that the potable water system is depressurized (Ref. AMM TASK 38-10-00-614-002).
   (2) Make sure that the lavatory door is open.
   (3) Make sure that the toilet shroud is removed (Ref. AMM TASK 25-45-22-000-001).
   (4) Make sure that the potable-water shutoff valve (7) is closed.
   (5) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to open the potable-water shutoff valve (7).
Subtask 38-31-55-010-058-C ** ON A/C NOT FOR ALL
C. Get Access
F Valve - Water ** ON A/C NOT FOR ALL
   (1) Make sure that the potable water system is depressurized (Ref. AMM TASK 38-10-00-614-002).
   (2) Make sure that the lavatory door is open.
   (3) Make sure that the toilet shroud is removed (Ref. AMM TASK 25-45-22-000-001) (Ref. AMM TASK 25-45-22-000-802).
   (4) Make sure that the potable-water shutoff valve (3) is closed.
   (5) Make sure that the WARNING NOTICE(S) are in position to tell persons not to open the potable-water shutoff valve (3).
Subtask 38-31-55-010-058-J ** ON A/C NOT FOR ALL
C. Get Access
   (1) Make sure that the potable water system is depressurized (Ref. AMM TASK 38-10-00-614-002).
   (2) Make sure that the lavatory door is open.
   (3) 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 38-31-55-670-051-A
D. Water Disinfection
   (1) Do the local disinfection of the potable water system (Ref. AMM TASK 38-10-00-670-805).
4. Procedure
Subtask 38-31-55-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Water Valve

   (1) Remove the PLUG-BLANKING from each disconnected line end.
   (2) Put a new AIPC 38-31-41-30-190 PACKING (3) or AIPC 38-31-41-40-190 PACKING (3) or AIPC 38-31-41-30-140 PACKING (3) or AIPC 38-31-41-40-150 PACKING (3) in its correct installation position on the fitting (4).
NOTE: It is not necessary to apply grease to the packing (3).
   (3) Put the water valve (1) and the spacer (2) together in their correct installation positions on the fitting (4).
   (4) Tighten the water valve (1).
   (5) Attach a new TIE WRAP(S) (6) with an INSTALLATION TOOL - TIE WRAP.
   (6) Safety the water valve:
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
     (a) Safety the water valve (1) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
   (7) Remove the PLUG-BLANKING from each disconnected line end.
   (8) Put the new AIPC 38-31-41-30-040 PACKINGS (8) or AIPC 38-31-41-40-040 PACKINGS (8) or AIPC 38-31-41-30-080 PACKINGS (8) or AIPC 38-31-41-40-090 PACKINGS (8) in their correct installation positions.
NOTE: It is not necessary to apply grease to the packings (8).
   (9) Install the sleeve (9).
   (10) Install the clamp (10).
   (11) Make sure that the clamp (10) 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.
   (12) Remove the CAP-BLANKING from each electrical connector and receptacle.
CAUTION: MAKE SURE THAT ELECTRICAL CONNECTORS ARE CLEAN WHEN YOU CONNECT THEM. THE CONTAMINATION OF ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO THE EQUIPMENT.
   (13) Connect the electrical connector (5).
   (14) Remove the COVER - BLANKING from the suction port of the toilet bowl.
   (15) Remove the WARNING NOTICE(S) related to the potable-water shutoff valve (7).
   (16) Open the potable-water shutoff valve (7).
Subtask 38-31-55-420-050-C ** ON A/C NOT FOR ALL
A. Installation of the Water Valve
   (1) Remove the PLUG-BLANKING from each disconnected line end.
   (2) Apply a thin layer of Lubricant-Rubber seal Glycerin - (Material No.03PEB1) to the new AIPC 38-31-41-40-040 PACKING (5) and AIPC 38-31-41-40-050 PACKING (7).
   (3) Put the packings (5) and (7) in position on the water valve (6).
   (4) Install the water valve screen (4) on the water valve (6) as follows:
     (a) Visually examine the water valve screen (4).
     (b) If necessary, clean the water valve screen (4) as follows:
       1 Put the water valve screen (4) in vinegar (5% acetic acid solution) for approximately 30 minutes.
       2 Clean the water valve screen (4) with clean water.
       3 Use AIR SOURCE FILTERED, DRY to fully dry the water valve screen (4).
     (c) If necessary, replace the water valve screen (4) with a new AIPC 38-31-41-40-030 WATER VALVE SCREEN (4) when:
  • The water valve screen (4) is not sufficiently clean
  • The water valve screen (4) is worn
  • The water valve screen (4) is damaged.
NOTE: You can push the top end of the water valve screen (4) into an oval shape to keep it in the fitting during installation.
   (5) Put the water valve (6) in its correct installation position between the water line (2) and the housing of the anti-syphon valve.
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) Use the WRENCH - OPEN END and connect the water line (2) to the water valve (6).
   (7) Tighten the coupling nut of the water line (2).
   (8) Install the anti-syphon valve (Ref. AMM TASK 38-31-56-400-001).
   (9) Close the retainer (13).
   (10) Install the bolt (12), the washer (8) and the nut (9).
   (11) Remove the CAP-BLANKING from each electrical connector and receptacle.
CAUTION: MAKE SURE THAT ELECTRICAL CONNECTORS ARE CLEAN WHEN YOU CONNECT THEM. THE CONTAMINATION OF ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO THE EQUIPMENT.
   (12) Connect the electrical connector (1).
   (13) Attach the connector cable of the water valve (6) with the rubber (11) and the cable-tie (10).
   (14) Remove the COVER - BLANKING from the suction port of the toilet bowl.
   (15) Remove the WARNING NOTICE(S).
   (16) Open the potable-water shutoff valve (3).
Subtask 38-31-55-420-050-I ** ON A/C NOT FOR ALL
A. Installation of the Water Valve
   (1) Make sure that the potable-water shutoff valve (1) 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 (1).
   (3) Remove the PLUG-BLANKING from each disconnected line end.
   (4) Put the water valve (15) in its correct installation position.
   (5) Put the quarter turn cam-fastener (6) in its correct installation position and engage it.
   (6) Turn the cam lever (7) 90 degrees and move it down to lock the water valve (15).
   (7) Remove the PLUG-BLANKING from each disconnected line end.
   (8) Apply a thin layer of Lubricant-Rubber seal Glycerin - (Material No.03PEB1) to a new AIPC 38-31-41-30-180 PACKING (5).
   (9) Put the packing (5) and the tube (3) in their correct installation positions.
   (10) Install the quick-release clamp (4) and lock it.
   (11) Make sure that the quick-release clamp (4) is locked correctly.
   (12) Remove the PLUG-BLANKING from each disconnected line end.
   (13) Apply a thin layer of Lubricant-Rubber seal Glycerin - (Material No.03PEB1) to the new AIPC 38-31-41-30-140 PACKING (12) and AIPC 38-31-41-30-240 PACKING (9).
   (14) Install the packing (12) and (9) and the water valve screen (10) and the adapter (13) in their correct installation positions as follows:
     (a) Visually examine the water valve screen (10).
     (b) If necessary, clean the water valve screen (10) as follows:
       1 Put the water valve screen (10) in vinegar (5% acetic acid solution) for approximately 30 minutes.
       2 Clean the water valve screen (10) with clean water.
       3 Use AIR SOURCE FILTERED, DRY to dry the water valve screen (10) fully.
     (c) If necessary, replace the water valve screen (10) with a new AIPC 38-31-41-30-230 WATER VALVE SCREEN (10) when:
  • The water valve screen (10) is not sufficiently clean
  • The water valve screen (10) is worn
  • The water valve screen (10) is damaged.
NOTE: You can push the top end of the water valve screen (10) into an oval shape to keep it in position on the water valve (15).
   (15) Install the quick-release clamp (11) and lock it.
   (16) Make sure that the quick-release clamp (11) 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.
   (17) Use the WRENCH - OPEN END and connect the water line (14) to the adapter (13).
   (18) Tighten the coupling nut of the water line (14).
   (19) Install the anti-syphon valve (Ref. AMM TASK 38-31-56-400-001).
   (20) Remove the CAP-BLANKING from each electrical connector and receptacle.
CAUTION: MAKE SURE THAT ELECTRICAL CONNECTORS ARE CLEAN WHEN YOU CONNECT THEM. THE CONTAMINATION OF ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO THE EQUIPMENT.
   (21) Connect the electrical connector (8) to the flush valve assembly (2).
   (22) Remove the WARNING NOTICE(S).
   (23) Open the potable-water shutoff valve (1).
Subtask 38-31-55-865-064-A
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACUUM-SYS35MGA06
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACUUM-GEN33MGA08
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-E34MGA04
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-D39MGA03
** ON A/C ALL
2001VUVACU TOIL SYS-LAV PWR-A32MGA01
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACU-SYS35MGA06
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-VACU-GEN33MGA08
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-G34MGA04
2001VUVACU TOIL SYS-LAV PWR-F39MGA03
2001VUVACU TOIL SYS-LAV PWR-D45MGA02
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-L45MGA02
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-L23MGA05
** ON A/C NOT FOR ALL
2001VUVACU TOIL SYS-LAV PWR-M34MGA04
Subtask 38-31-55-710-050-A
C. Operational Test
   (1) Pressurize the potable water system (Ref. AMM TASK 38-10-00-614-001) or (Ref. AMM TASK 38-10-00-614-003).
   (2) Do an operational test of the toilet unit to make sure that it flushes correctly (Ref. AMM TASK 38-31-00-710-009).
   (3) Make sure there are no leaks.
NOTE: Leaks are not permitted.
5. Close-up
Subtask 38-31-55-410-050-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 38-31-55-410-050-C ** 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) (Ref. AMM TASK 25-45-22-400-802).
   (3) Close the lavatory door.
Subtask 38-31-55-862-050-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 01:20:31 UTC
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