A320飞机维护手册 AMM OXYGEN 氧气(139)

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REFERENCE  QTY DESIGNATION
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No specific  a shut-off valve, a vent device and an overpressure device
 No specific  circuit breaker(s) safety clip(s)
 No specific  lint-free cloth
 No specific  pressure measuring device
 No specific  GROUND PRESSURE SOURCE (Nitrogen A_A_59503, Type 1, Class 1, Grade B)
 No specific  TEST TOOL - MANUAL RELEASE
 No specific  access platform 1.6 m (5 ft. 3 in.)
 No specific  1 BAG - VINYL
 No specific  1 CAP - BLANKING
 No specific  1 PLUG - BLANKING, PRESSURE
 No specific  1 WARNING NOTICE
 No specific  Torque Wrench : range 1.00 to 10.00 m.daN
 (8.00 to 75.00 lbf.ft)
 B. Referenced Information
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REFERENCE  DESIGNATION
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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
 25-23-41-000-001  Removal of the Ceiling Panels
 25-23-41-400-001  Installation of the Ceiling Panels
 25-55-12-000-003  Removal of the Sidewall Panels in the AFT Cargo Compartment - FR59/FR65

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REFERENCE DESIGNATION -------------------------------------------------------------------------------
25-55-12-400-003 Installation 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 35-21-00-614-002 Filling of the Passenger Oxygen Cylinders 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the
 Yellow Electric Pump 52-30-00-860-002 Close the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump
 3. Job Set-up
__________
 Subtask 35-23-00-861-058
 A. Energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-861-002).

 Subtask 35-23-00-865-073
 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 35-23-00-010-066
 C. 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)
 In the cabin, remove the ceiling panel 231CC (Ref. TASK 25-23-41-000-001).

 

 Subtask 35-23-00-614-054
 D. Depressurize the Emergency Oxygen System
 (1)
 Close the manual shut-off valves of the emergency oxygen cylinders.

 (2)
 Put the TEST TOOL - MANUAL RELEASE on the oxygen test port 7504WR1 to release the pressure from the system.

 Subtask 35-23-00-941-053
 E. Safety Precautions
 (1)
 Put a WARNING NOTICE in position in the cockpit to tell persons not to operate the emergency oxygen system.

 (2)
 Put a WARNING NOTICE in position in the cockpit and in the cargo compartment to tell persons that a pressure test continues.

 (3)
 On all of the emergency oxygen containers, push the left hand side of the test lever on the door assembly until the over-center spring keeps the lever at 90 degrees to the door surface.

 NOTE : The test lever should stay in this position until manually
____
 set.

 4. Procedure
_________
 WARNING : KEEP ALL HYDROCARBONS (FUELS, LUBRICANTS, ETC.) AWAY FROM ALL
_______
 SOURCE OF OXYGEN. OXYGEN BECOMES EXPLOSIVE WHEN IT TOUCHES
 HYDROCARBONS.

 WARNING : CLEAN THE TOOLS AND MAKE SURE YOUR HANDS ARE CLEAN TO PREVENT
_______
 CONTAMINATION OF THE OXYGEN SYSTEM.

 CAUTION : PUT DRY, CLEAN, METAL OR PLASTIC PLUGS ON ALL PIPES OR UNITS
_______ REMOVED TEMPORARILY. PUT EACH PIPE OR UNIT IN A SEALED VINYL BAG.
　
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