S 864-021

 (9)  
Supply electrical power (AMM 24-22-00/201).

 S 864-022

 (10)
 Add the chemical precharge to the toilet tank (AMM 12-17-61/301).

 S 714-023

 (11)
 Do the steps of the leak test for the toilet tank drain valve (AMM 38-32-60/501).

 S 414-024

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

 S 864-026

 (13)
 Remove the electrical power if it is not necessary (AMM 24-22-00/201).

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 1.
2.

3.

A
747-400 MAINTENANCE MANUAL
 FLUSH SWITCH - REMOVAL/INSTALLATION
___________________________________General
_______
 A.  This procedure has two tasks. The first task removes the flush switch. The second task installs the flush switch.
 B.  The flush switch is found in the lavatory compartment above the toilet seat.
 TASK 38-32-64-014-001
Flush Switch Removal (Fig. 401)

____________________

 A.  Access
 (1)  Location Zone 224 Upper Deck Crew Rest Body Sta 385 to 632, Right
 B.  Procedure
 S 864-002
 (1)  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
 S 014-003
 (2)  
Open the latches at the bottom of the toilet shroud.

 S 014-004

 (3)  
Remove the toilet shroud.

 S 024-005

 (4)  
Disconnect the electrical wires from the flush switch assembly at the wire disconnects.

 S 024-006

 (5)  
Loosen the setscrew and remove the flush handle.

 S 024-007

 (6)  
Remove the coverplate.

 (7)
Remove the two mounting screws from the flush switch assembly.

 S 014-009

 (8)  
Remove the flush switch assembly.

 S 024-008
 TASK 38-32-64-404-010
Flush Switch Installation (Fig. 401)

_________________________

 A.  Reference
 (1)  AMM 24-22-00/201, Manual Control
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. FREIGHTERS ú

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 ú ú 01 Page 401 ú Jun 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

WIRE DISCONNECTS
Flush Switch Installation Figure 401
E23632
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 38-32-64
 ú ú 01 Page 402 ú Jun 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 B. Access
 (1)  Location Zone 224 Upper Deck Crew Rest Body Sta 385 to 632, Right
 C. Procedure
 S 024-011
 (1)  
Put the flush switch assembly in its position.

 S 024-012

 (2)  
Install the two screws that hold the flush switch assembly.

 S 024-013

 (3)  
Install the coverplate.

 S 024-014

 (4)  
Install the flush handle and tighten the setscrew.

 S 024-015

 (5)  
Connect the electrical wires to the flush switch assembly at the wire disconnect.

 S 414-016

 (6)  
Carefully put the toilet shroud over the toilet tank assembly and engage the latches.

 S 864-017

 (7)  
Remove the DO-NOT-CLOSE tag and close this circuit breaker on P415 Power Distribution Panel - Right:
　
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