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R **ON A/C 052-055, 057-057,
Subtask 35-23-00-010-058
R D. Get Access
(1) On all the emergency oxygen containers push the left hand side of the
test lever on the door, 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.
R **ON A/C 401-499,
R Subtask 35-23-00-010-058-A
R D. Get Access
R (1) On all the emergency oxygen containers pull out the door stops with
R your fingers and turn them 90 degrees to the TEST position.
R Subtask 35-23-00-860-056
R E. Aircraft Maintenance Configuration
R (Ref. Fig. 401/TASK 35-23-00-991-006)
R (1) Remove the altitude pressure switch 16WR (Ref. TASK 35-23-15-000-
R 001), to do this do the steps that follow:
R (a) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below
R the access door 824 and open it.
R (b) Remove the screws (4), the washers (5) and remove the altitude
R switch (2) from its support (3).
R NOTE : Do not disconnect the electrical connector (1) from the____
R altitude switch (2).
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Altitude Pressure Switch 16WR Figure 401/TASK 35-23-00-991-006
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R **ON A/C 052-055, 057-057, 401-499,
Subtask 35-23-00-480-053
R R F. Connect the altitude pressure switch 16WR to a vacuum source with the HOSE - ADAPTER, ALTITUDE SWITCH (98A35207599000). **ON A/C 401-499,
R Subtask 35-23-00-860-053
R R R R G. Preparation for the test (1) Make sure that the AHS ON pushbutton switch 899WR on the overhead panel 21VU is in the normal position. **ON A/C 052-055, 057-057, 401-499,
4. Procedure_________
Subtask 35-23-00-040-050
A. Do the functional test of the automatic mask release.
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. At the vacuum source:
-slowly increase the pressure to 14800 ft. (4500 m).
2. At the vacuum source:
-slowly decrease the pressure to 0 ft. (0 m).
On the panel 21VU:
-
the SYS ON indicator light comes onat 14000 +0 -500 ft. (4260 +0 -150 m).
On all the emergency oxygen containers:
-
the doors open to the maximum permitted by the door stops.
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-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
3. On the panel 50VU:
-push and hold the TMR RESET pushbutton switch.
-release the TMR RESET
pushbutton switch.
4. In the cabin at the first and second seatrow:
-close the doors of all related emergency oxygen containers.
5. On the overhead panel 21VU:
-push the AHS ON pushbutton switch.
6. At the vacuum source:
-slowly increase the pressure to 16800 ft. (5120 m).
7. At the vacuum source:
-slowly decrease the pressure to 0 ft. (0 m).
8. On the panel 50VU: On the panel 50VU:
-
the ON indicator light on the TMRRESET pushbutton switch comes on.
On the panel 21VU:
-
the SYS ON indicator light goes off. On the panel 50VU:
-
the ON indicator light on the TMRRESET pushbutton switch goes off.
On the overhead panel 21VU:
-
the On legend in the AHS ONpushbutton switch comes on.
On the panel 21VU:
-
the SYS ON indicator light comes onat 16000 +0 -500 ft. (4870 +0 -150 m).
On all the emergency oxygen containers at the first and second seatrow:
- 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM OXYGEN 氧气(108)
