WATER TANK
ADJUSTMENT STRUT
AIR QUANTITY
PRESSURE TRANSMITTER
LINE
ATTACHMENT
BOLT OVERFLOW
LINE
FILL
LINE
STRUT
SEE B
DRAIN LINE
FWD INBD DRAIN VALVE SEE D
DRAIN VALVE SHAFT
WATER TANK
A
WASHER
(EACH SIDE)
ATTACHMENT BOLT ASSEMBLY
CB
Potable Water Tank Installation Figure 401 (Sheet 1)
SUPPLY
LINE
SEE C
WATER TANK
END PLUG
WATER
TANK
MOUNTING BRACKET (2 LOCATIONS)
FWD
INBD
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38-11-11
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
(SHOWN IN CLOSED POSITION)
DRAIN VALVE
Potable Water Tank Installation
Figure 401 (Sheet 2)
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38-11-11
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
(3) S 014-009Remove the water fill line from the water tank.
(4) S 014-010Remove the overflow line from the water tank.
(5) S 014-011Remove the water supply line from the water tank.
(6) S 014-012Remove the adapter connect pin from the actuator shaft.
(7) S 014-013Pull the actuator valve handle on the service panel to remove the actuator shaft.
(8) S 014-014Loosen the bolts found on the struts on the forward side of the water tank.
(9) S 014-015Remove the bolt assembly on the aft side of the water tank.
NOTE:____ The bolt attaches to the nutplate on the outboard mounting bracket.
S 014-016
(10)
Remove the top bolts and washers found on the struts on the forward side of the tank.
S 014-017
(11)
Turn the struts away from the tank.
S 014-053
CAUTION:_______BE CAREFUL WHEN YOU REMOVE THE POTABLE WATER TANK. IF THE DRAIN VALVE AND THE QUANTITY TRANSMITTER TOUCH OTHER SURFACES, DAMAGE CAN OCCUR.
(12) Carefully remove the water tank.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 014-054
(13)
Remove the insulation blanket from the water tank.
S 014-019
(14)
Loosen the jamnut and remove the drain valve with the O-ring from the water tank boss.
S 014-020
(15)
Remove the quantity transmitter from the water tank
(AMM 38-11-21/401).
TASK 38-11-11-404-022
3. Potable Water Tank Installation
_______________________________
A. References
(1)
AMM 38-41-00/201, Water Tank Pressurization System
(2)
AMM 38-11-21/401, Water Quantity Transmitter
(3)
AMM 24-22-00/201, Manual Control
(4)
AMM 12-14-00/301, Water Servicing
B. Access
(1) Location Zone
220 Aft Cargo Compartment Equipment Bay
C. Prepare the Potable Water Tank for Installation
S 214-059
(1) Verify if the "WARNING" markers are installed on the end caps of the potable water tank.
NOTE: If the marker is not installed on either of the end caps,
____ install the markers per SB 737-11-1097 before returning the aircraft to service.
S 414-025
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