(a)
Remove the bolts (61) and the washers (60).
(b)
Remove the bracket assembly from the aircraft. NOTE : It may be necessary to loosen the clamps of the cable
____ bundle (which runs aft of the bracket assembly) to get beter access to the aft bolts (61).
(10) Remove the rear duct (40). Detail B and H.
(a)
Remove the clamps (43), (63) and (64).
(b)
Remove the bellows (44) and (66).
(c)
Remove the duct (40) from the aircraft.
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C. Drain the potable water system (Ref. TASK 12-24-38-680-001).
(1)
Do not close the potable water-service panel-door 171AL.
(2)
Examine the drain valve 14MP and make sure that it is open. NOTE : If the the drain valve 14MP is not open, then you must open it
____
manually.
R **ON A/C 151-199, 301-399, 401-499,
Subtask 38-11-41-010-050-A
B. Get Access
(1)
Put the ACCESS PLATFORM 2M (6 FT) in position.
(2)
Open the AFT cargo-compartment door (Ref. TASK 52-30-00-860-001).
(3)
Remove the access panels 161DW, 162DW (Ref. TASK 25-55-12-000-001).
(4)
Remove the center support strut at FR65 (Ref. TASK 53-43-11-000-001). Subtask 38-11-41-680-051-A
C. Drain the potable water system (Ref. TASK 12-24-38-680-001).
(1)
Do not close the potable water-service panel-door 171AL.
**ON A/C ALL
Subtask 38-11-41-941-052
D. Safety Precautions
(1) Put warning notices in position:
-
in the cockpit on the Engine Control Panel 115VU to tell persons not to start the engine(s),
-
in the cockpit on the AIR COND Overhead Control Panel 30VU to tell persons not to push the ENG 1 BLEED, ENG 2 BLEED and APU BLEED pushbutton switches to the ON pos,
- on the HP ground connection to tell persons not to pressurize the pneumatic system,
- on the Potable Water Service Panel 2023VU to tell persons not to pressurize the potable water system.
**ON A/C 001-049, 051-099, 101-149, 201-299,
Subtask 38-11-41-865-054-C
E. Open, safety and tag this(these) circuit breaker(s): -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------
2000VU WATER SYS QUANT - IND 1MA B01
R **ON A/C 151-199, 301-399, 401-499,
Subtask 38-11-41-865-054-B
E. Open, safety and tag this(these) circuit breaker(s): -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------
2001VU WATER SYS QUANT - IND 1MA B06
**ON A/C ALL
4. Procedure
_________
**ON A/C 001-049, 051-099, 101-149, 201-299,
Subtask 38-11-41-020-051
A. Removal of the Potable Water Tank WARNING : MAKE SURE THAT THE POTABLE WATER SYSTEM IS DEPRESSURIZED. A
_______ PRESSURIZED SYSTEM CAN CAUSE INJURY TO PERSONS WHEN THEY DO WORK ON IT.
(Ref. Fig. 403/TASK 38-11-41-991-001)
(1)
Disconnect the air pressure line (16).
(2)
Disconnect the connection (15) at the tank.
Potable Water Tank
Figure 403/TASK 38-11-41-991-001
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(3)
Disconnect the connection (13).
(4)
Remove the clamps (20) and the overflow line (14).
(5)
Disconnect the electrical connector 3MA-A (17) from the quantity transmitter 3MA and put CAP - BLANKING on the disconnected electrical connectors.
(6)
Disconnect the connection (8) and put PLUG - BLANKING on the disconnected line ends.
(7)
Pull the distribution line assembly (7) out of the water tank (1).
(8)
Remove and discard the cotter pin (11).
(9)
Remove the washer (10) and the pin (9).
(10)
Remove the clamps (2).
(11)
Remove the potable water tank 3000MM (1). 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.
R **ON A/C 151-199, 301-399, 401-499,
Subtask 38-11-41-020-051-A
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