-
The fill and drain port at the service panel 2023VU,
-
The drain port on the FWD drain panel.
(6)
Return the fill and drain control handle 3254MM to the NORMAL position.
**ON A/C 301-399,
Subtask 12-24-38-680-051-B
A. Drain the Potable Water System
(Ref. Fig. 201A/TASK 12-24-38-991-004-B)
(1) Connect the HOSE - DRAIN to:
-
The fill and drain port on the potable water service-panel 2023VU,
-
The drain port on the FWD drain panel.
R 1EFF : 151-199, 301-399, 401-499, 1 12-24-38Page 209 1 1 Aug 01/05 1 1 1CES 1
(2) On the potable water service-panel 2023VU:
(a) Turn the fill and drain control handle 3254MM to the PULL TO DRAIN position. Then pull it out to the mechanical stop.
NOTE : The drain valve control light 2MP comes on.
____
NOTE : Water will drain from:
____
-
The fill and drain port on the potable water service panel 2023VU,
-
The drain port on the FWD drain panel.
(3) Operate the water faucet(s) in the galley(s), the coffee makers and or the water heater to drain them.
NOTE : To drain the residual water from the galley(s) it is necessary
____ to repeat step (3) several times. The duration of the residual water drainage after the end of the water outflow from the potable water system can take at least 15 minutes. This depends on the attitude of the aircraft. Step (3) must be repeated again when the aircraft has been moved.
(4)
When the system is drained, remove the drain hose from:
-
The fill and drain port at the service panel 2023VU,
-
The drain port on the FWD drain panel.
(5)
Return the fill and drain control handle 3254MM to the NORMAL position.
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**ON A/C ALL
5. Close-up
________
**ON A/C 001-049, 051-099, 101-149, 201-299,
Subtask 12-24-38-410-052
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Clean and dry the panels with a lint free cloth MISCELLANEOUS (Material No. 19-003).
(3)
Install the cap on the fill and drain port of the service panel. NOTE : If the draining is done in cold weather the caps and access
____ panels should be left open (Ref. TASK 12-31-38-660-001).
(4) Close the access panels 133AL, 192NB, 171AL. R **ON A/C 151-199, 301-399, 401-499,
Subtask 12-24-38-410-052-A
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Clean and dry the panels with a lint free cloth MISCELLANEOUS (Material No. 19-003).
(3)
Install the cap on the fill and drain port of the service panel. NOTE : If the draining is done in cold weather the caps and access
____ panels should be left open (Ref. TASK 12-31-38-660-001).
(4)
Close the access panels 133AL, 171AL.
**ON A/C ALL
Subtask 12-24-38-862-051
B. De-energize the ground service network
(Ref. TASK 24-42-00-862-001).
Subtask 12-24-38-942-055
C. Remove the ground support and maintenance equipment, the special and standard tools and all other items.
1EFF : ALL 1 12-24-38Page 212 1 1 May 01/04R 1 1 1CES 1
TASK 12-24-38-680-002
Draining of the Potable Water System (without Electrical Power)
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific access platform 2 m (6 ft. 7 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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