5.
In one of the lavatories: - operate the water faucet.
In the potable water air system:
-
the potable water tank 3000MM startsto pressurize.
-
the manometer shows 15 psi (1.0342bar).
In the potable water air system:
-
the potable water system ispressurized.
-
the pressure reducing valve operates and stops the air supply to the tank (when the airflow to the tank reduces to zero).
-
the manometer shows between 25 psi (1.7236 bar) and 28 psi (1.9305 bar).
In the potable water air system:
-
the pressure at the manometer doesnot increase.
-there are no air leaks at the pressure reducing valve.
In the potable water air system:
-the pressure at the manometer staysthe same.
In the lavatory:
-water flows from the water faucet into the washbasin.
NOTE : When the pressure in the potable
____ water system decreases, the pressure reducing valve starts the air supply to the system again.
1EFF : ALL 1 38-41-00Page 504 1 1 Feb 01/00R 1 1 1CES 1
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
6. At the service panel 2023VU:
-close the high-pressure air
charging-valve of the ground
air connection.
5. Close-up
________
Subtask 38-41-00-614-050
A. Depressurize the potable water system (Ref. TASK 38-10-00-614-002).
Subtask 38-41-00-080-050
B. Remove the test equipment.
(1)
Disconnect the ground air-supply cart.
(2)
Disconnect the manometer from the test port.
(3) Install the blanking plug to the test port.
Subtask 38-41-00-862-050
C. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
R **ON A/C 001-049, 051-099, 101-149, 201-299,
Subtask 38-41-00-410-051
D. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the access panels 131PW, 131NW, 171AL.
(3)
Close the FWD cargo-compartment door (Ref. TASK 52-30-00-860-002)
(4)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
R **ON A/C 151-199, 301-399, 401-499,
Subtask 38-41-00-410-051-A
D. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the access panel 161DW.
(3)
Close the AFT cargo-compartment door (Ref. TASK 52-30-00-860-002).
(4)
Close the access panel 171AL.
(5)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
R 1EFF : 151-199, 301-399, 401-499, 1 38-41-00Page 506 1 1 Aug 01/05 1 1 1CES 1 **ON A/C ALL
TASK 38-41-00-710-002
Operational Test of the Potable-Water Air Supply-System (with the aircraft pneumatic system)
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific hose 1.5 m (4 ft. 11 in.)
No specific container 20 l (5.2833 USgal)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 12-15-38-613-001 Fill the Potable Water Tank System (Aircraft R Electrical Power Available) 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 38-10-00-614-001 Pressurization of the Potable Water System from a Ground Air Supply 38-10-00-614-002 Depressurization of the Potable Water System
3. Job Set-up
__________
Subtask 38-41-00-861-053
A. Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
Subtask 38-41-00-480-051
B. Test Equipment
(1)
Attach the hose to the water faucet in a lavatory.
(2)
Put the other end of the hose into a container.
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