(12)
 Make sure that in the FWD cargo-compartment, the partition panel 131PW is removed.

 Subtask 38-14-48-865-054
 C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
124VU SVCE/601PP/602PP/SPLY 1PX BB01
 4. Procedure
_________
 (Ref. Fig. 404/TASK 38-14-48-991-004) Subtask 38-14-48-560-051
 A. Preparation for Installation WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THE SPECIAL
_______
 MATERIAL.
 THIS MATERIAL IS DANGEROUS.

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 (1)
 Clean the lever (5), the bush (6), the bearing assy (7) and the handle (8) with CLEANING AGENTS (Material No. 11-002).

 (2)
 Apply COMMON GREASE (Material No. 04-004) to the bush (6) and the bearing assy (7).

 Subtask 38-14-48-420-051
 B. Installation of the Control Handle
 (1)
 Do an inspection of the component interface and/or the adjacent area.

 (2)
 Install the new silicone seal (9) on the bush (8).

 (3)
 Outside the aircraft, assembly the bush (8), the handle (6), the bolt

 (5) and hold against the aircraft structure.

 (4)
 Make sure that the overflow handle (drain handle) is in the closed position.

 (5)
 Install the lever (10) and the nut (11). Subtask 38-14-48-680-052

 C.
 Pressurize the potable water system (Ref. TASK 38-10-00-614-001). Subtask 38-14-48-865-055

 D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1PX
 Subtask 38-14-48-720-051
 E. Do this Test
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. At the drain and overflow panel: In the potable water system:
 - operate the overflow handle  - the lever of the overflow valve 8MP (drain handle) from the closed (drain valve 14MP) moves from the to the open position. closed to the open position.
 -the limit switch 3MP is energized.
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 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
- operate the overflow handle (drain handle) from the open to the closed position.
5. Close-up________
 Subtask 38-14-48-613-051
 -
the motorized overflow valve 8MP (motorized drain valve 14MP) opens.

 At the service panel 2023VU:

 -
the overflow valve control light 6MP (drain valve control light 12MP) comes on.

In the potable water system:

-
the lever of the overflow valve 8MP (drain valve 14MP) moves from the open to the closed position.

 -
the limit switch 3MP is de-energized.

 -
the motorized overflow valve 8MP (motorized drain valve 14MP) closes.

 At the service panel 2023VU:

 -
the overflow valve control light 6MP (drain valve control light 12MP) goes off.

 A. Do the servicing of the potable water system (Ref. TASK 12-15-38-613-001).
 Subtask 38-14-48-410-053
 B. Close Access
 (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 and overflow panel 192NB.

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

 (5)
 In the FWD cargo-compartment, install the partition panel 131PW.

 (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 38-14-48-862-051
 C. De-energize the ground service network (Ref. TASK 24-42-00-862-001).
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