S 024-063

 (14)
 Disconnect the waste drain line from the adapter.

 S 014-024

 (15)
 To remove the water separator box, do the steps that follow:

 (a)  
Remove the screws to disconnect the water separator box from the lining and sink wall.

 (b)  
Remove the water separator box to disconnect the electrical line.

 (c)  
Remove the water separator box.

 (16)
 Remove the screws to disconnect the lining from the lavatory frame.

 (17)
 Remove the lining.

 S 024-064
 S 024-065
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757 MAINTENANCE MANUAL
 S 024-066
 (18)
 Disconnect the drain lines under the sink cabinet.

 S 024-067

 (19)
 Remove the floor attachment bolts to disconnect the floor from the airplane structure.

 NOTE: You can get access to two bolts under the sink cabinet.
____ You can get access to two bolts from the outer surface of the lavatory at the bottom of the sidewall.
 S 024-028
 (20) Remove the lavatory.
 TASK 25-41-03-404-029
 3. Install the Mid Lavatory (Fig. 401)
________________________
 A. Consumable Materials
 (1)  
G00156 Vinyl Plastic, Permacel Tape No. 295

 (2)  
A00247 Sealant, Chromate Type BMS 5-95

 (3)  
A00028 Adhesive, BMS 5-92

 (4)  
B00138 Canton (cotton) flannel cloth, clean and oil free

 (5)  
B00148 Solvent - Methyl Ethyl Ketone (MEK), TT-M-261

 B. References
 (1)  
AMM 25-41-02/401, Lavatory Door

 (2)  
AMM 38-10-00/201, Potable Water System

 (3)  
AMM 38-32-01/401, Toilet Tank

 C. Access
 (1)  Location Zones
 231/232 Passenger Cabin - Section 43

 D. Procedure - Install the Mid Lavatory
 S 414-030
 (1)  
If you install a new lavatory, remove the sidewall, toilet tank, water separator box, lining, ceiling, and door from the lavatory.

 S 824-031

 (2)  
Put the lavatory in position to align the floor mounts and waste drain line.

 S 424-068

 (3)  
If you install a new lavatory, install a shim in the floor mounts as follows:

 (a)  Install the shim between the top of bushing in the floor and the bottom of floor mount until you get the correct clearance (Fig. 401).
 NOTE: Do not make each shim thicker than 0.06 inch.
____
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MAINTENANCE MANUAL

 WARNING:_______ DO NOT GET SOLVENTS IN YOUR MOUTH, OR YOUR EYES, OR ON
 YOUR SKIN.  DO NOT BREATHE THE FUMES FROM SOLVENTS.
 SOLVENTS ARE HAZARDOUS MATERIALS.  REFER TO PRODUCT
 MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS

 FOR PROPER HANDLING PROCEDURES.
 (b)  
Clean the shim and the floor mount surfaces with a clean wiper, which is moist with solvent, Series 91 (AMM 20-30-91/201, SOPM 20-30-91).

 (c)  
Bond the shim to the floor mount with BMS 5-92 adhesive. Clean the unwanted adhesive.

 S 424-069
 (4)  
Install the bolts and washers to connect the floor mounts to the airplane structure in four locations.

 S 424-070

 (5)  
Connect the water drain lines under the sink cabinet.

 S 424-071

 (6)  
Connect the waste drain line to the lavatory adapter with the clamp.

 S 394-036

 (7)  
Apply the sealant in the screw holes of the adapter.

 S 424-072

 (8)  
Install the screws to attach the adapter to the lavatory.
　
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