Installation of the Potable Water Tank

TASK 38-11-41-400-002-A
Installation of the Potable Water Tank

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

WARNING: YOU MUST MAKE SURE THAT YOU CAN HOLD THE COMPONENT BEFORE YOU REMOVE/INSTALL IT. THE COMPONENT IS HEAVY. IF IT FALLS, IT CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.

CAUTION: WHILE YOU REMOVE OR INSTALL THE WATER TANK, BE CAREFUL NOT TO CAUSE DENTS OR DAMAGE TO IT. DENTS OR DAMAGE CAN CAUSE LEAKAGE IN THE WATER TANK.

NOTE: The weight of this equipment is approximately 16 kg (35 lb). More than one person is necessary for this procedure.

FIN: 3000MM

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	ACCESS PLATFORM 2M (6 FT)
No specific	Torque wrench: range to between 0.66 and 0.54 m.daN (58.41 and 47.79 lbf.in )
No specific	Torque wrench: range to 0.6 m.daN (53.10 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BAA9)	Non Aqueous Cleaner-General - -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
131NW, 132PW
161DW, 162DW

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
11	COTTER PIN	AIPC 38-11-03-01-040
3	O-RINGS	AIPC 38-11-03-03-130
24	PIN	AIPC 38-11-04-02-060
15	PACKING	AIPC 38-11-04-11-160
4	O-RINGS	AIPC 38-11-04-11-160
11	COTTER PIN	AIPC 38-11-83-01-050
3	O-RINGS	AIPC 38-11-83-02-190
24	PIN	AIPC 38-11-84-02-060
15	PACKING	AIPC 38-11-84-11-160

E. Referenced Information

REFERENCE	DESIGNATION
TASK 12-15-38-613-001-A	Fill the Potable Water Tank System (Aircraft Electrical Power Available)
TASK 12-24-38-680-001-A	Draining of the Potable Water System (with Electrical Power)
TASK 12-24-38-680-002-A	Draining of the Potable Water System (without 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 21-21-41-400-001-A	Installation of the Recirculation Filter Cartridge
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 25-54-12-400-001-A	Installation of the Forward Cargo-Compartment Partition
TASK 25-55-12-400-001-A	Installation of the Aft Cargo-Compartment Partition at FR65
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 38-10-00-670-002-A	Disinfection of Potable Water System and Discard of Water Filter Elements, if Installed
TASK 38-41-00-790-002-A	Leak Check of the Air supply System
TASK 52-30-00-860-001-A	Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-002-A	Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-003-A	Open the FWD or Aft Cargo-Compartment Door with the Hand Pump
TASK 52-30-00-860-004-A	Close the FWD or Aft Cargo-Compartment Door with the Hand Pump
TASK 53-43-11-400-001-A	Installation of the Support Strut
TASK 38-13-00-710-001-A	Operational Test of the Quantity Indicating System (for corrective action)
Potable Water Tank ** ON A/C NOT FOR ALL
Clamp Installation Requirements
Potable Water Tank ** ON A/C NOT FOR ALL
Pressure Switch 10MD ** ON A/C NOT FOR ALL
Air Conditioning Ducts ** ON A/C NOT FOR ALL
Access Panels-Support Struts ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 38-11-41-860-051-A

A. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(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) (Ref. AMM TASK 12-24-38-680-002).
(4) Make sure that the WARNING NOTICE(S) is (are) in the position to tell the persons not to pressurize or fill the potable water tank.
(5) Make sure that ACCESS PLATFORM 2M (6 FT) is in the position.
(6) Make sure that the cargo compartment door(s) is (are) open (Ref. AMM TASK 52-30-00-860-001) (Ref. AMM TASK 52-30-00-860-003).

Subtask 38-11-41-865-057-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
2000VU	WATER SYSTEM-DEPRESS	1MD	B02
2000VU	WATER SYSTEM-QANT-IND	1MA	B01
** ON A/C NOT FOR ALL
2001VU	WATER-SYSTEM-DEPRESS	1MD	F03
** ON A/C NOT FOR ALL
2001VU	WATER SYS-QUANT-IND	1MA	B06
** ON A/C NOT FOR ALL
2001VU	WATER SYS-AIR-COMPRESSOR	19MD	F01
** ON A/C NOT FOR ALL
2001VU	WATER-SYSTEM-DEPRESS	1MD	D05

Subtask 38-11-41-560-050-B ** ON A/C NOT FOR ALL

C. Preparation for Installation

Potable Water Tank ** ON A/C NOT FOR ALL

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

Detail C.
(1) If necessary disassemble the distribution line (7).
(a) Remove the clamshell (6).
(b) Move the sleeve (5) back from over the O-rings (3).
(c) Remove and discard the O-rings (3).
(2) Assemble the distribution line (7).
(a) Install the new AIPC 38-11-03-03-130 O-RINGS (3) or AIPC 38-11-83-02-190 O-RINGS (3) on the pipes (4) and (7).
(b) Move the sleeve (5) over the O-rings (3) and install the clamshell (6).
(c) Make sure that the clamshell (6) is locked correctly:

axial adjustment is more than 6.35mm
angular misalignment is +/- 4 degree in any direction around centerline.

Subtask 38-11-41-560-050-C ** ON A/C NOT FOR ALL

C. Preparation for Installation

Potable Water Tank ** ON A/C NOT FOR ALL

(1) Make sure that the water tank is clean and in a good condition.
(2) Remove the blanking plugs.
(3) Install new AIPC 38-11-04-11-160 PACKING (15) or AIPC 38-11-84-11-160 PACKING (15) on the distribution lines (16) and (19).
(4) Install new AIPC 38-11-04-11-160 O-RINGS (4) on the distribution line (7).

4. Procedure
Subtask 38-11-41-420-054-B ** ON A/C NOT FOR ALL

A. Installation of the Potable Water Tank

Potable Water Tank ** ON A/C NOT FOR ALL

(1) Put the potable water tank 3000MM (1) in position.
(2) Install the clamps (2):

WARNING: INSTALL THE CLAMPS OF THE POTABLE WATER TANK IN A POSITION THAT WILL PREVENT POSSIBLE INJURY TO PERSONNEL.

(a) Install the clamps (2) but do not tighten them.
(b) Install the pin (9) the washer (10) and a new AIPC 38-11-03-01-040 COTTER PIN (11) or AIPC 38-11-83-01-050 COTTER PIN (11).

NOTE: Make sure that you do not dent or cause damage to the tank. Dents or damage to the tank could cause a leak to occur.

(c) Remove the PLUG-BLANKING from each disconnected line end.
(d) Install the distribution line assembly (7) in the tank and connect the connector (8).
(e) Put the overflow line (14) in position and connect the connectors (15) and (13)
(f) Put the clamps (20) in position.
(g) Install the washers (19), bolts (18) and nuts (21).
(h) Install the air pressure line and connect the connector (16).
(i) Tighten the clamps (2) and TORQUE to between 0.66 and 0.54 m.daN (58.41 and 47.79 lbf.in )

.
(3) Connect the electrical connector (17):
(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 3MA-A (17) to the quantity transmitter 3MA.

Subtask 38-11-41-420-054-C ** ON A/C NOT FOR ALL

A. Installation of the Potable Water Tank

Potable Water Tank ** ON A/C NOT FOR ALL

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

(1) Put the potable water tank 3000MM (10) in position.
(2) Put the brackets (20) in position.
(3) Install the bolts (23) the washers (22) and the nuts (21).
(4) Install the clamps (9):

WARNING: INSTALL THE CLAMPS OF THE POTABLE WATER TANK IN A POSITION THAT WILL PREVENT POSSIBLE INJURY TO PERSONNEL.

(a) Install the tank attach clamps (9) but do not tighten.
(b) Install the pin (26) the washer (25) and a new AIPC 38-11-04-02-060 PIN (24) or AIPC 38-11-84-02-060 PIN (24).

NOTE: Make sure that you do not dent or cause damage to the tank. Dents or damage to the tank could cause a leak to occur.

(c) Remove the PLUG-BLANKING from each disconnected line end.
(d) Put the overflow line (7) in position.
(e) Move the sleeve (5) in position over the O-rings (4) and install the clamshell (6).
(f) Make sure that the clamshell (6) is locked correctly:

axial adjustment is more than 6.35mm
angular misalignment is +/- 4 degree in any direction around centerline.

(g) Connect the air-pressure line (8).
(h) Put the distribution line assembly (16) in position.
(i) Move the sleeve (17) in position over the O-rings (15) and install the clamshell (18).
(j) Make sure that the clamshell (18) is locked correctly:

axial adjustment is more than 6.35mm
angular misalignment is +/- 4 degree in any direction around centerline.

(k) Tighten the two tank attach clamps (9) and TORQUE to 0.6 m.daN (53.10 lbf.in )

.
(5) Connect the electrical connector:
(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 3MA-A to the quantity transmitter 3MA.

Subtask 38-11-41-560-056-C ** ON A/C NOT FOR ALL

B. Connection of the Pressure Switch 10MD

Pressure Switch 10MD ** ON A/C NOT FOR ALL

(1) Remove the CAP-BLANKING from each electrical connector and receptacle.
(2) Make sure that all the electrical connections are clean and in the correct condition.
(3) Connect the electrical connector 10MD-A (1) to the pressure switch 10MD (2).

Subtask 38-11-41-865-058-A

C. 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
2000VU	WATER SYSTEM-DEPRESS	1MD	B02
2000VU	WATER SYSTEM-QANT-IND	1MA	B01
** ON A/C NOT FOR ALL
2001VU	WATER-SYSTEM-DEPRESS	1MD	F03
** ON A/C NOT FOR ALL
2001VU	WATER SYS-QUANT-IND	1MA	B06
** ON A/C NOT FOR ALL
2001VU	WATER SYS-AIR-COMPRESSOR	19MD	F01
** ON A/C NOT FOR ALL
2001VU	WATER-SYSTEM-DEPRESS	1MD	D05

Subtask 38-11-41-860-050-A

D. Preparation for Test
(1) Remove the WARNING NOTICE(S).
(2) Make sure that the potable water air system does not leak (Ref. AMM TASK 38-41-00-790-002).
(3) Fill the potable water system (Ref. AMM TASK 12-15-38-613-001).
(4) Pressurize the potable water system (Ref. AMM TASK 38-10-00-614-001).

Subtask 38-11-41-710-051-A

E. Test
(1) Do this test

ACTION	RESULT
1.In the lavatory/galley Operate the water faucet.	In the lavatory/galley Water flows from the water faucet.

(2) If necessary, do the test of the quantity indicating system (Ref. AMM TASK 38-13-00-710-001).
(3) Make sure that there are no leaks.

Subtask 38-11-41-670-050-A

F. Do the sterilization of the potable water system (Ref. AMM TASK 38-10-00-670-002).

5. Close-up
Subtask 38-11-41-410-051-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Install the center support strut at FR65 (Ref. AMM TASK 53-43-11-400-001) .
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Install the access panels 161DW 162DW (Ref. AMM TASK 25-55-12-400-001).
(4) Remove the access platform(s).
(5) Close the AFT cargo-compartment door (Ref. AMM TASK 52-30-00-860-002).

Subtask 38-11-41-410-051-B ** ON A/C NOT FOR ALL

A. Close Access

Air Conditioning Ducts ** ON A/C NOT FOR ALL

Access Panels-Support Struts ** ON A/C NOT FOR ALL

(1) Install the air conditioning ducts:
(a) Install the rear duct (40).
Detail B and H:
1 Put the duct (40) in position.
2 Install the bellows (44) and (66).
3 Install the clamps (43) and (64).
4 Make sure that the bellows are located between the red marks.
5 Install the clamp (63) and make sure that it is fully around the bracket (65).
(b) Install the bracket assembly.
Detail J:
1 Put the bracket assembly in position.
2 Install the washers (60) and the bolts (61).
3 If removed, install the clamps of the cable bundle aft of the bracket assembly.
(c) Install the bend duct (42).
Detail D, E, F and G:
1 Put the bend duct (42) in position.
2 Install the bellows (53) and (55).
3 Install the clamps (54) and (52).
4 Make sure that the bellows are located between the red marks.
5 Install the clamp (50) and make sure that it is fully around the bracket (51).
(d) Install the fwd duct (41).
Detail B and C:
1 Put the duct (41) in position.
2 Install the bellows (44).
3 Install the clamps (43) and (45).
4 Make sure that the bellows are between the red marks.
(2) Install [4013HM] (Ref. AMM TASK 21-21-41-400-001).
(3) Install the partition panel-support struts (31) and (34):
(a) Clean the struts with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(b) Put the partition panel-support struts (31) and (34) in position.
(c) Install the nuts (33) and the bolts (32).
(4) Operate the air condition system and make sure there are no leaks at the installed ducts (Ref. AMM TASK 12-33-21-618-001).
(5) Make sure that the work area is clean and clear of tools and other items.
(6) Install partitions 131NW and 132PW (Ref. AMM TASK 25-54-12-400-001).
(7) Close the forward cargo-compartment door (Ref. AMM TASK 52-30-00-860-002) (Ref. AMM TASK 52-30-00-860-004).
(8) Remove the access platform(s).

Subtask 38-11-41-862-053-A

B. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 01:17:56 UTC