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R R R R  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. 
R R R  WARNING : MAKE SURE THAT THE EQUIPMENT YOU USE FOR THIS PROCEDURE IS_______ CLEAN AND APPROVED FOR THE POTABLE WATER SYSTEM. IF NOT IT CAN CAUSE CONTAMINATION OF THE POTABLE WATER SYSTEM. 
R R R  WARNING : BEFORE YOU DO WORK ON THE POTABLE WATER SYSTEM, CLEAN YOUR_______ HANDS WITH SOAP AND WATER. THIS WILL PREVENT INFECTION. (CONTAMINATION FROM TOILET WASTE IS DANGEROUS TO HEALTH).
 (Ref. Fig. 403/TASK 25-43-42-991-014)
 (a) Open the sanitary cabinet door (41). 
R  (b) Put the CONTAINER 1 L (1/4 USGAL) in position below the water connections that you will disconnect.
 (c) Disconnect the connections (43) and (44) and remove the potable water tube (42).
 (d) Disconnect the potable water tube (49).
 (e) Remove the nut (47), the washer (46) and disconnect the bonding straps (45) and (48).
 (f) Loosen the clamp (51) and disconnect the sleeve (52).
 (g) Put blanking plugs on the disconnected line ends.
 (h) Remove the container.

 EFF : ALL
25-43-42Page 411

 Water Tube Connection - Component Location Figure 403/TASK 25-43-42-991-014
R  EFF : CES  ALL  Page 41225-43-42 Config-2 Feb 01/03 

 

 (4) Remove the upper and lower attachments.
 (Ref. Fig. 404/TASK 25-43-42-991-018)

 (a)
 Remove the cover plate (66).

 (b)
 Remove the bolts (62).

 (c)
 Remove the quick-release pins (64).

 (d)
 Move the lavatory assembly to the center of the aircraft aisle.

 (e) Remove and discard the packings (63). Subtask 25-43-42-020-057
 B. Disassembly of the Lavatory E
 (1) Disconnect the electrical connections.
 (Ref. Fig. 405/TASK 25-43-42-991-019)

 (a)
 Disconnect the electrical connector (87).

 (b)
 Put blanking caps on the disconnected electrical connectors.

 (c)
 Remove and discard the cable ties (84) from the mounts (83).

 (d)
 Remove the screws (89), the washers (90) and remove the bracket (88).

 (e)
 Remove and discard the cable ties (85) which attach the bonding strap (81) to the electrical cable (82).

 (f)
 Close the sanitary cabinet door (41).

 (g)
 Disconnect the electrical connectors from the flush switch (80).

 (h)
 Put blanking caps on the disconnected electrical connectors.

 (i)
 Remove and discard the cable ties (92) from the mounts (91) behind the lavatory rearwall (94).

 (j)
 Temporarily attach the cable assembly (93) to the top of the lavatory ceiling panel (79).

 EFF : ALL
25-43-42Page 413
Config-2 May 01/05
R
 CES

 Lower and Upper Attachments Figure 404/TASK 25-43-42-991-018
R  EFF : CES  ALL  Page 41425-43-42 Config-2 May 01/05 

 

 Electrical Connections Figure 405/TASK 25-43-42-991-019
R  EFF : CES  ALL  Page 41525-43-42 Config-2 May 01/05 

 

 (2)
 Disconnect the ventilation hose. (Ref. Fig. 402/TASK 25-43-42-991-002)

 (a)
 Remove the screws (31), the washers (30), the clamps (29) and the spacers (28).

 (b)
 Loosen the clamp (32) and disconnect the ventilation hose (34) from the ventilation tube (33).

 

 (3)
 Disassemble the lavatory. (Ref. Fig. 406/TASK 25-43-42-991-020)

 (a)
 Remove the sealant from around the floor pan (100) with a
 nonmetallic scraper.

 (b)
 Remove the screws (103), the screws (101) and the washers (102).

 (c)
 Remove the lavatory assembly from the floor pan (100).

 (d)
 Temporarily attach the ventilation hose (34) to the lavatory ceiling (79).

 (e)
 Remove the screws (123), the screws (121) and the washers (122).

 (f)
 Remove the screw (124).

 (g)
 Remove the screws (126), the washers (127), the screws (129) and the washers (130).

 (h)
 Divide the lavatory subassemblies (125) and (128).

 (i)
 Remove the lavatory subassemblies from the aircraft.

 (j)
 Remove the stepladder.

 

 EFF : ALL
25-43-42Page 416
Config-2 May 01/05
　
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