A320飞机维护手册 AMM OXYGEN 氧气(77)

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-Examine the Passenger Oxygen Indication Panel (POXIP).
2. On the overhead panel 20VU in the cockpit:
-Push the TEST pushbutton on the POXIP for approx. 1 sec.
On the overhead panel 20VU in thecockpit:
-Make sure that there is no 'FAULT'indication of the cylinder on the POXIP.
On the overhead panel 20VU in thecockpit:
-All indication lights on the POXIPcome on.
 -On the display of the POXIP the indication '8888' comes on.
 On the overhead panel 20VU in the cockpit, after 3 seconds:
 -All indication lights on the POXIP go off.
 -
On the display of the POXIP some indications of a BITE-Test come on.

 On the overhead panel 20VU in the cockpit, after 6 seconds:

 -
On the display of the POXIP the indication of the oxygen system pressure comes on.

 

 Subtask 35-21-51-614-051
 E. Pressurize the Emergency Oxygen System
 (1)
 Slowly open the manual shut-off valves of the emergency oxygen cylinders 3.5 to 4 turns.

 (2)
 Let the pressure become stable.
 NOTE : This occurs after approximately 90 seconds.

____

 (3)
 Fully open the manual shut-off valves of the emergency oxygen cylinders.

 (4)
 If necessary, fill the emergency oxygen cylinders (Ref. TASK 35-21-00-614-002).

 Subtask 35-21-51-942-050
 F. Remove the warning notice(s).
 5. Close-up
________ Subtask 35-21-51-410-050
 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Install the related lining panel to close access to the oxygen storage (Ref. TASK 25-55-12-400-003).

 (3)
 Set the CARGO COMPT LIGHT switch 8LU to the OFF position.

 (4)
 Remove the access platform(s).

 (5)
 Close the AFT cargo-compartment door 826 (Ref. TASK 52-30-00-860-002).

 Subtask 35-21-51-862-050
 B. De-energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-862-002).

 

 FILLING PORT - OXYGEN (7520WR) - REMOVAL/INSTALLATION
_____________________________________________________
 TASK 35-21-52-000-001
 Removal of the Filling Port (7520WR)
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s) No specific access platform 1.6 m (5 ft. 3 in.) No specific 1 BAG - VINYL No specific 1 PLUG - BLANKING No specific 1 WARNING NOTICE
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 25-55-12-000-003 Removal of the Sidewall Panels in the AFT Cargo Compartment - FR59/FR65 35-00-00-860-001 Special precautions when working on a Gaseous Oxygen System 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump 35-21-52-991-001 Fig. 401
 3. Job Set-up
__________
 Subtask 35-21-52-861-050
 A. Energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-861-002).

 

 Subtask 35-21-52-865-050
 B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU OXYGEN/PASSENGER/CTL AND WARN 2WR HA03 49VU OXYGEN/PASSENGER/CTL AND WARN 1WR HA02
 Subtask 35-21-52-941-050
 C. Put a WARNING NOTICE in position in the cockpit to tell persons not to operate the emergency oxygen system.
 Subtask 35-21-52-010-050
 D. Get Access
 (1)
 Open the AFT cargo-compartment door 826 (Ref. TASK 52-30-00-860-001).

 (2)
 Put the access platform below the AFT cargo-compartment door 826.

 (3)
 Set the CARGO COMPT LIGHT switch 8LU to the ON position.

 (4)
 Remove the related lining panel to get access to the oxygen storage (Ref. TASK 25-55-12-000-003).

 (5)
 Close the manual shut-off valves of the emergency oxygen cylinders.

 4. Procedure
　
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