E.  AIRPLANES WITH CUTOUT ABOVE TOILET SHROUD; Put the Airplane Back to its Usual Condition
 S 414-036
 (1)  Install the small closure plate on shroud wall.
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 S 414-037
 (2)  
Carefully put the toilet shroud over the toilet tank assembly and engage the latches.

 S 864-038

 (3)  
Remove the electrical power if it is not necessary
 (AMM 24-22-00/201).

 F.  AIRPLANES WITH NO CUTOUT ABOVE TOILET SHROUD; Put the Airplane Back to its Usual Condition
 S 414-024
 (1)  
Carefully put the toilet shroud over the toilet tank assembly and engage the latches.

 S 414-030

 (2)  
Install the partition aft of the lavatory as follows:

 (a)  
Move the partition into its position.

 (b)  
Extend the pins in the pin mounts.

 (c)  
Install the screws for the floor mounts.

 (d)  
Install the sidewall panel adjacent to the partition.

 (e)  
Install the gap cover for the sidewall panel.

 (f)  
Install the dado panel.

 (g)  
Install the cover assembly in the forward corner at the partition.

 (h)  
Install the ceiling panel.

 (i)  
Install the closure strip for the ceiling panels.

 S 864-025
 (3)  Remove the electrical power if it is not necessary
 (AMM 24-22-00/201).

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747-400 MAINTENANCE MANUAL
 TOILET TANK DRAIN VALVE - REMOVAL/INSTALLATION
______________________________________________
 1.  General_______
 A.  This procedure has two tasks. The first task removes the toilet tank drain valve assembly. The second task installs the toilet tank drain valve.
 B.  The toilet tank drain valve assembly is referred to as the valve in the steps in these two tasks.
 C.  Make sure that you read and obey the specified instructions in the Standard Procedures for work with the Toilet Waste and Equipment (AMM 38-32-60/201).
 TASK 38-32-63-634-001
 2.  Toilet Tank Drain Valve Removal (Fig. 401)_______________________________
 A.  Reference
 (1)  AMM 12-17-61/301, Toilet Tank - Servicing
 B.  Access
 (1)  Location Zone 224 Upper Deck Crew Rest Body Sta 385 to 632, Right
 C.  Prepare to Remove the Toilet Tank Drain Valve
 S 864-002
 (1)  
Do the steps in AMM 12-17-61/301 to drain, rinse and add the chemical precharge to the toilet tank.

 S 864-004

 (2)  
After 5 minutes drain the chemical precharge from the toilet tank.

 S 864-003

 (3)  
Open this circuit breaker on P414 Power Distribute Panel - Left and attach a DO-NOT-CLOSE tag:

 (a)  414E19 DRAIN VALVE LAV TANKD U-21.
 S 864-005
 (4)  
Open this circuit breaker on P415 Power Distribution Panel - Right and attach a DO-NOT-CLOSE tag:

 (a)  415D35 UPR DK LAV FLUSH MOTOR U-21

 (5)  
Open the latches at the bottom of the toilet shroud.

 (6)  
Remove the toilet shroud.

 S 014-006
 S 014-007
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747-400
　
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