A320飞机维护手册 AMM LANDING GEAR 起落架4(75)

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R  probe 9DA1. 
R  (3) Remove the colored adhesive tape from the pitot probe 9DA1 drain 
R  holes and the AOA sensor 3FP1.
 Subtask 32-31-00-480-067 
R  C. Installation of the Test Equipment 
R  (1) Connect the GROUND PRESSURE GENERATOR to the static and pitot probes 
R  as follows: 
R  (a) Connect the ADAPTER COVER-STATIC PORT equipment to the static 
R  probes 7DA2 and 8DA2. 
R  (b) Connect the ADAPTOR-CHARGING,PITOT PROBE to the pitot probe 9DA2. 
R  (c) Seal the drain holes of the pitot probe 9DA2 with colored 
R  adhesive tape. 
R  CAUTION : WHEN YOU SEAL THE DRAIN HOLE IN THE PITOT PROBE, DO NOT_______ 
R  SEAL THE HOLE DIRECTLY WITH THE COLORED ADHESIVE TAPE. 
R  ALWAYS PUT A PIECE OF PLASTIC ON THE HOLE AND USE THE 
R  TAPE TO ATTACH THE PLASTIC. 
R  IF YOU SEAL THE DRAIN HOLE DIRECTLY WITH THE ADHESIVE 
R  TAPE, THERE IS A RISK THAT SOME OF THE ADHESIVE WILL 
R  STAY ON THE HOLE AND COLLECT PARTICLES. THIS CAN 
R  SUBSEQUENTLY CAUSE BLOCKAGE OF THE HOLE AND THUS 
R  INCORRECT OPERATION OF THE PROBE. 
R  (d) Move the vane of the AOA sensor 3FP2 to the top (nose-up) 
R  position. Keep the vane in this position with colored adhesive 
R  tape. 

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 Subtask 32-31-00-720-072 
R  D. Operational Check to Ensure Safety Valve Closes at 260 kts 
R  CAUTION : OBEY THESE PRECAUTIONS WHEN YOU DO THE TEST TO PREVENT DAMAGE_______ 
R  TO INSTRUMENTS: 
R  - PRESSURE SET MUST NOT BE MORE THAN 1050 hPa (31 in Hg) OR 
R  LESS THAN 115 hPa (3.39 in Hg) 
R  - CHANGES IN PRESSURE MUST NOT BE MORE THAN 6000 FEET/MINUTE 
R  - DO NOT SUDDENLY OPEN LINES TO AMBIENT AIR WHILE THE PRESSURE 
R  GENERATOR IS CONNECTED. 
R  CAUTION : THE TOTAL PRESSURE IN THE PITOT SYSTEM MUST NEVER BE LESS THAN_______ 
R  THE STATIC PRESSURE. THE DIFFERENCE BETWEEN THE PITOT AND THE 
R  STATIC PRESSURE CIRCUITS MUST NEVER BE MORE THAN 368 hPa (10.86 
R  in Hg). 
R
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ACTION  RESULT
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1. On the panel 20VU: 
R  - set the IR 3 selector switch to 
R  ATT to energize the ADIRU 3. 
R  Reference Para. 4.A., do again 
R  the test procedure steps 7. 
R  thru 14.
 2. On the panel 20VU:
 - set the IR 3 selector switch to
 OFF.
 3. Make sure that the travel range
 of the applicable MLG door is
 clear.
 4. Try to move the applicable ground  The handle will not move.
 door-operating handle to the 
R  CLOSE position.  NOTE : There can be unwanted movement____ 
R  of the ground door-operating 
R  handle because of remaining 
R  green hydraulic pressure. If the 
R  handle can be moved more than 
R  five times, it is possible that 

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R R  the safety valve 49GA is defective.
 5. Remove the FALSE TARGET from the applicable proximity sensor 21GA(20GA). The safety-valve 49GA is energized(valve OPEN).
 6. Make sure that the travel range of the applicable MLG door is clear.
 7. Move the applicable ground door-operating handle to the CLOSE position. The applicable MLG door closes.
 5. Close-up________
 Subtask 32-31-00-860-101

 A. Aircraft Maintenance Configuration
 (1) Stop the electric pump of the Yellow Hydraulic system (Ref. TASK 29-24-00-864-001).
 (2) Make sure that the Yellow and the Green hydraulic systems are depressurized. (Ref. TASK 24-41-00-862-002).
 (3) De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
 Subtask 32-31-00-080-064 
R  B. Removal of the Test Equipment
 (1) Disconnect the connectors (2) and (3) of the GND PWR Contactor Overide Box from the connector (5) and the contactor 3XG connection (4). 
　
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