(5)
 Make sure that the access platforms are in position:

 -Under the access door 171AL of the potable-water service-panel.
 -At the AFT cargo-compartment door.

 (6)
 Make sure that the access door 171AL of the potable-water service panel is open.

 (7)
 Make sure that the WARNING NOTICE is in position to tell persons:

 -
Not to do the servicing of the potable water system.

 -
Not to operate the control handle 3254MM at the potable-water service panel.

 -That the draining system will not operate electrically. R **ON A/C 001-049, 051-099, 101-149, 201-299,
 Subtask 38-14-17-865-051-A
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged

 -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------2000VU WATER SYS - QUANT IND 1MA B01 2001VU WATER SYS - DRAIN 1MP B05

R **ON A/C 151-199, 301-399, 401-499,
 Subtask 38-14-17-865-051
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and
 tagged -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------
2001VU WATER SYS - QUANT IND 1MA B06 2001VU WATER SYS DRAIN 1MP B05
 **ON A/C ALL
 4. Procedure
_________
 Subtask 38-14-17-420-050

 A. Installation of the Drain Limit Switch 3MP
 (Ref. Fig. 401/TASK 38-14-17-991-001)

 (1)
 Clean the component interface and/or the adjacent area.

 (2)
 Do an inspection of the component interface and/or the adjacent area.

 (3)
 Remove the nut (1) and the washer (2) from the new drain limit switch 3MP (5).

 (4)
 Make sure that the O-ring (4) is installed on the drain limit switch.

 (5)
 Put the drain limit switch 3MP (5) in position in the bracket (3).

 (6)
 Install the stainless steel lockwire MISCELLANEOUS (Material No. 19-009) in the hole of the washer (2).

 (7)
 Install the washer (2) and the nut (1). NOTE : The axis of the drain limit switch (5) must align with the

 (8)
 Safety the nut (1) with the stainless steel lockwire MISCELLANEOUS (Material No. 19-009) from the washer (2).

 (9)
 Pull the control handle (3254MM) out 30.0 +2 -2 mm (1.1811 +0.0787 -0.0787 in.) and listen for the drain limit switch 3MP (5) to klick, if necessary adjust the switch (Ref. TASK 38-14-00-820-002).

____ pulley of the control handle (3254MM).

 (10)
 Remove the blanking caps from the electrical connectors.

 (11)
 Make sure that the electrical connectors are clean and in the correct condition.

 (12)
 Connect the electrical connector 3MP-A (6).

 **ON A/C 001-049, 051-099, 101-149, 201-299,
 Subtask 38-14-17-865-052-A
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit
 breaker(s): -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------
2000VU WATER SYS - QUANT IND 1MA B01 2001VU WATER SYS - DRAIN 1MP B05

R **ON A/C 151-199, 301-399, 401-499,
 Subtask 38-14-17-865-052
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit
 breaker(s): -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------
2001VU WATER SYS - QUANT IND 1MA B06 2001VU WATER SYS DRAIN 1MP B05
 **ON A/C ALL
 Subtask 38-14-17-710-050
 C. Do the operational test of the potable water drain system (Ref. TASK 38-14-00-710-001).

 5. Close-up________
 Subtask 38-14-17-410-050
 A. Close Access
 (1) Make sure that the work area is clean and clear of tool(s) and other items.
 (2) Install the floor-panel 161DW (Ref. TASK 25-55-12-400-001). 
R R  (3) In the AFT cargo compartment, on the control panel 5024VU set the light switch 30LU to the OFF position. 
R  (4) Remove the access platform(s). 
R  (5) Close the AFT cargo-compartment door (Ref. TASK 52-30-00-860-002). 
R  (6) Close the access door 171AL.
 NOTE : Make sure that the latches are correctly locked and that the____ door makes a continuous surface with the skin of the aircraft. 
　
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