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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
TOILET BOWL VENT
ELECTRICAL
CABLE TO
THE TIMER

BONDING JUMPER
TANK
VENT
FITTING

TANK LEG TO
FLOOR FASTENERS
(4 LOCATIONS)

SEE F BOLTSEALANT
SEAL
WASHER
PLAIN
WASHER
F
A
747-400
MAINTENANCE MANUAL

ELECTRICAL
CONNECTOR
FOR THE TOILET
TANK DRAIN VALVE

ELECTRICAL CONNECTOR FOR THE FLUID LEVEL SENSOR
ELECTRICAL
CONNECTOR
RINSE LINE SHUTOFF VALVE
INLET TUBE
TOILET TANK
DRIP OVERFLOW LINE
PAN (REF)
TANK OUTLET CONNECTION TOILET TANK
SEE G
E

TOILET DRAIN TUBE
TOILET
TANK
LEG

DRIP TOILET
PAN TANK

FLOOR
PANELCLAMPSTRUCTURE DRIP PAN
(REF)
G
Toilet Tank Installation
Figure 401 (Sheet 3)

C81564
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (b)  
Remove the ceiling panel adjacent to the partition.

 (c)  
Remove the cover assembly in the forward corner at the partition.

 (d)  
Remove the dado panel adjacent to the partition.

 (e)  
Remove the gap cover for the sidewall panel adjacent to the partition.

 (f)  
Remove the sidewall panel adjacent to the partition.

 (g)  
Remove the screws for the floor mounts.

 (h)  
Retract the pins in the pin mounts.

 (i)  
Move the partition aft and inboard to remove the partition.

 D. Toilet Tank Removal
 S 034-007
 (1)  
Disconnect the electrical connector for the motor-pump-filter assembly at the toilet flush timer.

 S 034-008

 (2)  
Disconnect the electrical connector from the toilet tank drain valve.

 S 034-009

 (3)  
Disconnect the electrical connector from the fluid level sensor.

 S 034-010

 (4)  
Disconnect the electrical connector from the rinse line shutoff valve.

 S 034-011

 (5)  
Disconnect the hose from the toilet bowl vent.

 S 034-012

 (6)  
Disconnect the two hoses from the tank vent fitting.

 S 034-013

 (7)  
Disconnect the hose from the inlet tube on the rinse line shutoff valve.

 S 034-014

 (8)
Remove the bonding jumper from the motor-pump-filter assembly.

 (9)  
Disconnect the drain tube from the toilet tank outlet.

 S 014-032

 (10)
 Use a knife to cut the sealant away from the mounting bolts and washers that hold the tank legs to the floor.

 (11)
 Remove the mounting bolts and washers.

 S 034-033
 S 034-015
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. FREIGHTERS ú

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A
747-400 MAINTENANCE MANUAL
 S 024-018
 (12) Remove the toilet tank.
 TASK 38-32-65-654-019
 3.  Toilet Tank Installation (Fig. 401)________________________
 A. Consumable Materials
 (1)  
B00247 Sealant - BMS 5-95, Type B

 (2)  
B00260 Cleaner - Emulsion

 B. References
 (1)  
AMM 12-17-61/301, Toilet Tank - Servicing

 (2)  
AMM 24-22-00/201, Manual Control

 C. Access
 (1)  Location Zone 224 Upper Deck Crew Rest Body Sta 385 to 632, Right
 D. Toilet Tank Installation
 S 164-034
 (1)  
If it is necessary, clean the drip pan and the adjacent area with emulsion cleaner, water and a sponge.

 S 424-035