E. Procedure
 S 024-085
 (1)  
Disconnect the electrical connector above the ceiling.

 S 024-086

 (2)  
Disconnect the gasper air hose.

 S 014-018

 (3)  
Remove the lavatory mirror.

 S 014-019

 (4)  
Remove the lavatory door (AMM 25-41-02/401) and door frame.

 S 024-087

 (5)  
Remove the kick strips at the base of lavatory.

 S 014-021

 (6)  
To remove the aisle wall, do the steps that follow:

 (a)  
Remove the cable cover at the top of stanchion.

 (b)  
Inside the lavatory, remove the vertical trim strip at the inboard corner of the aft wall.

 (c)  
Remove the fasteners behind the trim strip.

 (d)  
On the aft side of the aisle wall, move the trim strip up to remove it.

 (e)  
Remove the floor mount at the bottom of the aisle wall.

 (f)  
Disconnect the electrical wiring if it is necessary.

 (g)  
Remove the aisle wall.

 (7)  
Disconnect the overhead tie rods from the lavatory.

 S 014-022
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757 MAINTENANCE MANUAL
 S 014-023
 (8) To remove the aft wall, do the steps that follow:
 (a)
Remove the aft floor mount.

 (b)
Remove the screws along the outboard contour.

 (c)
Remove the screws to disconnect the ceiling panel.

 (d)
Remove the aft wall.

 S 014-024
 (9)
Remove the toilet shroud and toilet tank (AMM 38-32-01/401).

 S 024-088

 (10)
 Remove the screws that attach the waste drain line to the lavatory floor.

 S 024-089

 (11)
 Lift the waste drain line and remove the clamp.

 S 024-090

 (12)
 Disconnect the waste drain line from the adapter.

 S 024-091

 (13)
 Disconnect the water drain lines under the sink cabinet.

 S 024-092

 (14)
 Disconnect the water supply line above the lavatory ceiling.

 S 024-093

 (15)
 Remove the screws to remove the lavatory from the flight compartment partition. Get access to the screws through the sink cabinet.

 S 014-031

 (16)
 Remove the remaining floor mounts.

 (17)
 Remove the lavatory.

 S 024-032
 TASK 25-41-01-404-053
 3.  Install Forward Lavatory (Fig. 401)________________________
 A. Consumable Materials
 (1) G00156 Vinyl Plastic Permacel Tape No. 295
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757
MAINTENANCE MANUAL

 (2)  
A00247 Sealant, Chromate Type BMS5-95

 (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

 (4)  
AMM 52-11-02/401, Passenger Door Lining

 C. Access
 (1)  Location Zones
 (a)  221 Passenger Cabin - Section 41 (Left)
 D. Procedure
 S 414-016
 (1)  
If you install a new lavatory, remove the aisle wall, aft wall, mirror and toilet tank from the lavatory.

 S 824-017

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

 S 424-094

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