- replace the NIPPLE-FILL AND DRAIN (11DV) (Ref. AMM TASK 30-72-52-000-001) and (Ref. AMM TASK 30-72-52-400-001).

 (2) If the fault continues:

 - do a check for the subsequent signals: 115VAC at TERMINAL BLOCK 7510VT connector 6/F, GND at TERMINAL BLOCK 7510VT connector 6/A.
 (a) If one signal is not OK:
 - do a check and repair the related wiring (Ref. ASM 30-72/01).
 B. Do the test as given in Para. 3.C.
 5. Close-up
________
 A. Put the aircraft back to the serviceable condition.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞30-72-00∞∞∞∞∞∞∞∞∞∞Page 203
 May 01/05R
 CES R **ON A/C 151-199, 301-399, 401-499,

 TASK 30-72-00-810-802
 Failure of heated Overflow Nipple
 1. Possible Causes
_______________
 - THERMOSTAT-OVERFLOW NIPPLE (14DV)

 - NIPPLE-OVERFLOW (13DV)

 - wiring

 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific cooling spray
 No specific access platform 2 m (6 ft. 7 in.)
 B. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power AMM 30-72-52-000-001 Removal of the Heated Fill/Drain Nipple 11DV and/or Overflow Nipple 13DV AMM 30-72-52-400-001 Installation of the Heated Fill/Drain Nipple 11DV
 and/or Overflow Nipple 13DV
 AMM 52-30-00-860-006 Open the Bulk Cargo-Compartment Door
 ASM 30-72/01

 3. Fault Confirmation
__________________
 A. Aircraft Maintenance Configuration
 (1) Energize the aircraft electrical circuits
 (Ref. AMM TASK 24-41-00-861-002).

 (2) Put an access platform in position at the potable-water service panel 171AL.

 (3) Open the BULK cargo-compartment door (Ref. AMM TASK 52-30-00-860-006).

 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 151-199, 301-399, 401-499, ∞∞30-72-00∞∞∞∞∞∞∞∞∞∞Page 204
 Aug 01/05 CES (4) Open the sidewall panel 161DW to get access to the thermostat 14DV.

 B. Make sure that this(these) circuit breaker(s) is(are) closed: -------------------------------------------------------------------------------
PANEL ------- SERVICE ----------------------------- ---------------------- IDENT. ----------- LOCATION----------
2001VU WATER SERV PANEL  15DV  D01
 C. Do this test:
 ------------------------------------ACTION  ----------------------RESULT ----------- ----------

-------------------------------------------------------------------------------
1. At the potable-water service  At the potable-water service panel panel (inboard side): (outboard side):
 - apply cooling spray on and  - examine that the heated fill/drain around the thermostat 14DV for nipple 13DV becomes warm. at least 10 seconds.
 4. Fault Isolation
_______________
 A. If the overflow nipple 13DV stayes cold:
 - replace the THERMOSTAT-OVERFLOW NIPPLE (14DV) (Ref. AMM TASK 30-72-52-000-001) and (Ref. AMM TASK 30-72-52-400-001).
 (1) If the fault continues:
 - replace the NIPPLE-OVERFLOW (13DV) (Ref. AMM TASK 30-72-52-000-001) and (Ref. AMM TASK 30-72-52-400-001).
 (a) If the fault continues:
 - check for the subsequent signals at the terminal block 7510VT7:
 - 115VAC at 7510VT7/F;

 - GND at 7510VT7/A.

 1  If one signal is missing:
_ - check and repair the wiring (Ref. ASM 30-72/01).
 B. Do the test as given in Para. 3.C.
 5. Close-up
________
 A. Put the aircraft back to the serviceable condition.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 151-199, 301-399, 401-499, ∞∞30-72-00∞∞∞∞∞∞∞∞∞∞Page 205
 Aug 01/05 CES

 WATER SERVICING PANELS HEATING - TASK SUPPORTING DATA
　
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