(2)
 In the drain panel, assembly the bush (8), the handle (6), the bolt

 (5) and hold against the aircraft structure.

 (3)
 Make sure that the drain valve is in the SHUT position.

 (4)
 Install the lever (9) and the nut (10).

 (5)
 Engage the clevis (5) and the pin (1).

 (6)
 Install the washer (3) and the new cotter pin (4). Subtask 38-14-49-680-058

 C.
 Pressurize the potable water system (Ref. TASK 38-10-00-614-001). Subtask 38-14-49-865-061

 D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1PX
 Subtask 38-14-49-710-053
 E. Do this Test
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the drain panel:  On the drain panel:
 -Make sure that the drain valve  - Make sure that the drain valve
 4MP is in the SHUT position. control light 2MP is OFF.

 -Turn the control handle of the  - Make sure that the drain valve
 drain valve 4MP in the OPEN control light 2MP is ON.
 position.

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 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
-Put back the control handle of the 4MP in the SHUT position.
2. On the CTL PNL-WATER QTY IND 2023VU:
 -Put the control handle in the DRAIN position.
 -Push the control handle. Make sure that the control handle comes back to the NORMAL position.
 5. Close-up
________
 Subtask 38-14-49-410-053
 A. Close Access
-
Make sure that the drain valvecontrol light 2MP is OFF.

On the drain panel:

 -
Make sure that the drain valvecontrol light 2MP is ON.

 NOTE : Do not take into account the
____ others indication.
-Make sure that the drain valvecontrol light 2MP is OFF.
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Close the passenger/crew door 832 or 842 (Ref. TASK 52-10-00-410-001).

 (3)
 Close the drain panel 133AL.

 (4)
 Close the access door 171AL of the service panel 2023VU.

R  (5) In the FWD cargo-compartment, install the floor panels 131EF, 131FF, 131GF.
 (6)
 Set the CARGO COMPT LIGHT switch 6LU to OFF.

 (7)
 Close the FWD cargo-compartment door 825 (Ref. TASK 52-30-00-860-002).

 (8)
 Remove the warning notice(s).

 (9)
 Remove the access platform(s).

 Subtask 38-14-49-862-053
 B. De-energize the ground service network (Ref. TASK 24-42-00-862-001).
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 WASTE DISPOSAL - DESCRIPTION AND OPERATION
__________________________________________
 1. General
_______
 The sub-systems of the waste disposal system which discard waste products
 and fluids from the galleys and the lavatories are:
 -
The Toilet System (Ref. AMM 38-31-00)

 -
The Waste-Water Drain System (Ref. AMM 38-32-00)

 2. Description
___________
 A. Toilet System (Ref. Fig. 001) The toilet system removes waste from the toilet bowl through a vacuum drain to an underfloor waste-holding tank. The system uses potable water from the aircraft pressurized water-system to flush the toilet. During ground service, the waste holding tank is emptied, cleaned and filled with a prescribed quantity of sanitary fluid.
 B. Waste-Water Drain System
 **ON A/C 001-003, 051-052,
 (Ref. Fig. 002)
R **ON A/C 004-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 (Ref. Fig. 002A)
 **ON A/C ALL
 The waste-water drain system discards waste water from the lavatory washbasins and the sinks of the galley through the aircraft's heated drainmasts.

 Toilet Waste Disposal - Functional Diagram
 Figure 001
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 1  1
 1CES  1

 Lavatory and Galley Waste Disposal - Functional Diagram
 Figure 002

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 Lavatory and Galley Waste Disposal - Functional Diagram
 Figure 002A
　
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