4. Procedure
_________
 **ON A/C 001-049, 051-099, 101-149, 201-299,

 (Ref. Fig. 401/TASK 38-13-11-991-001) R **ON A/C 151-199, 301-399, 401-499,
 (Ref. Fig. 401A/TASK 38-13-11-991-001-A) **ON A/C 001-049, 051-099, 101-149, 201-299,

 Subtask 38-13-11-420-050
 A. Installation of the Quantity Transmitter 3MA
 (1)
 Install a new packing (2) on the transmitter.

 (2)
 Remove the blanking plug from the potable water tank (6).

 (3)
 Install the quantity transmitter (1) into the potable water tank.

 (4)
 Install the washers (3) and the nuts (4).

 (5)
 Remove the blanking caps.

 (6) Connect the electrical connector (5) to the quantity transmitter (1). R **ON A/C 151-199, 301-399, 401-499,
 Subtask 38-13-11-420-050-A
 A. Installation of the Quantity Transmitter 3MA
 (1)
 Install a new packing (2) on the transmitter.

 (2)
 Remove the blanking plug from the potable water tank.

 (3)
 Install the quantity transmitter (1) into the potable water tank.

 (4)
 Install the washers (3) and the nuts (4).

 (5)
 Turn the potable water tank into position.

 (6)
 Remove the blanking caps.

 (7)
 Connect all the connections and the attachment clamps (Ref. TASK 38-11-41-400-002).

 (8)
 Connect the electrical connector (5) to the quantity transmitter (1).

 **ON A/C ALL
 Subtask 38-13-11-860-050
 B. Preparation for Test
 (1)
 Aircraft Maintenance Configuration

 (2)
 Fill and service the potable water tank (Ref. TASK 12-15-38-613-001).

 (3)
 Remove the warning notice(s).

 (4)
 Pressurize the potable water system (Ref. TASK 38-10-00-614-001).

 (5) Examine the water tank for leaks, leaks are not permitted.
 **ON A/C 001-049, 051-099, 101-149, 201-299,

 Subtask 38-13-11-865-053
 C. Remove the safety clip(s) and the tag(s) and close this(these) circuit
 breaker(s): -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------2000VU WATER SYS 1MA D06

R **ON A/C 151-199, 301-399, 401-499,
 Subtask 38-13-11-865-053-B
 C. 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
 **ON A/C ALL
 Subtask 38-13-11-710-050
 D. Do the operational Test of the Quantity Indicating System (Ref. TASK 38-13-00-710-001).

 Subtask 38-13-11-670-050
 E. Do the sterilisation of the potable water system (Ref. TASK 38-10-00-670-002).
 5. Close-up
________
 **ON A/C 001-049, 051-099, 101-149, 201-299,

 Subtask 38-13-11-410-050
 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 242CF (Ref. TASK 53-32-12-400-002).

 (3)
 Install the textile floor covering (Ref. TASK 25-28-41-400-001).

 (4)
 Install the passenger seat (Ref. TASK 25-21-41-400-001).

 (5) Remove the access platform(s). R **ON A/C 151-199, 301-399, 401-499,
 Subtask 38-13-11-410-050-A
 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Install the panel 161DW.

 (3)
 Remove the access platform(s).

 (4)
 Close the AFT cargo-compartment door (Ref. TASK 52-30-00-860-002).

R  **ON A/C ALL Subtask 38-13-11-862-050
 B. De-energize the ground service network (Ref. TASK 24-42-00-862-001).

R LIMIT SWITCH - WATER SERVICE PANEL DOOR - REMOVAL/INSTALLATION______________________________________________________________ TASK 38-13-16-000-001 Removal of the Water Service-Panel Door-Switch (5MA)
 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
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