(b)  
P415 Power Distribution Panel - Right 1) 415D35 UPR DK LAV FLUSH MOTOR U-21

 (6)  
Supply electrical power (AMM 24-22-00/201).

 (7)  
Do the steps in AMM 12-17-61/301 to drain and rinse the toilet tank.

 S 864-015
 S 864-016
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 S 714-017
 (8)  Make sure that you can feel or hear the water as it comes from the
 drain outlet when you do the steps that rinse the tank.
 S 864-022
 (9)  Use the rinse fitting at the service panel to fill the toilet tank
 with water until it stops or when you can see it come into the bowl.
 NOTE:____ If the water comes into the bowl, the rinse line shutoff
 valve does not operate correctly.

 S 864-018
 (10)
 Push in the outlet side of the hinged separator in the toilet bowl to view its contents.

 S 714-019

 (11)
 Make sure the level of the water is approximately 3 inches below the lower surface of the top of the toilet tank.

 S 414-020

 (12)
 Carefully put the toilet shroud over the toilet tank assembly and engage the latches.

 S 614-019

 (13)
 Do the steps in AMM 12-17-61/301 to drain the water from the toilet tank and add the chemical precharge.

 S 864-020

 (14)
 Remove electrical power if it is not necessary (AMM 24-22-00/201).

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747-400 MAINTENANCE MANUAL
 FLUID LEVEL SENSOR - REMOVAL/INSTALLATION
_________________________________________
 1.  General_______
 A.  This procedure has two tasks. The first task removes the fluid level sensor. The second task installs the fluid level sensor.
 B.  The fluid level sensor is referred to as the sensor in the steps of 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 38-32-68-004-001
 2.  Fluid Level Sensor 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.  Procedure
 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 864-003

 (2)  
Open this circuit breaker on P414 Power Distribution Panel - Left and attach a DO-NOT-CLOSE tag:

 (a)  414F23 FILL CONTROL LAV TANK

 (3)  
Open the latches at the bottom of the toilet shroud.

 (4)  
Remove the toilet shroud.

 (5)  
Disconnect the electrical connector from the sensor.

 S 034-007

 (6)  
Remove the nuts and washers that attach the sensor and the sensor shroud.

 (7)
Remove the sensor and the sensor shroud from the toilet tank.

 S 014-004
 S 014-005
 S 034-006
 S 024-008
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747-400
MAINTENANCE MANUAL

FLUID LEVEL SENSOR

Fluid Level Sensor Installation
Figure 401

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