On the panel 25VU:
-
the ON legend in the APU MASTER SWcomes on.
NOTE: The MASTER SW FAULT legend could come on if the Battery Charge Limiter does a power-up test after A/C power loss. Wait 45 seconds, recycle the APU MASTER SW then continue with the start sequence.
On the ECAM panel display:
-APU systems page comes on.
-the FLAP OPEN indication comes on.
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ACTION RESULT -------------------------------------------------------------------------------
8. On the panel 25VU:
-push the APU START pushbutton switch to the ON position.
9. On the lower ECAM display:
-
check at 7% N.
-
check acceleration.
-
check at 50% N.
-
check at 95% N.
10. On the panel 35VU:
-push the APU GEN pushbutton switch to the ON position.
On the panel 25VU:
-the ON legend in the APU STARTpushbutton switch comes on.
On the panel 35VU:
-DC V indication decreases.
On the lower ECAM display:
-N indication increases.
On the lower ECAM display:
-N% indication increases.
-EGT increases.
-stable and surge free with an increase of EGT and N indications.
On the panel 35VU:
-DC V indication increases as the starter motor de-energizes.
On the lower ECAM display:
-N indication increases.
-EGT indication decreases.
On the panel 25VU:
-
the ON legend in the START pushbutton switch goes off.
-
the AVAIL legend in the START pushbutton switch comes on.
On the lower ECAM display:
-AVAIL indication comes on.
-EGT in limits.
-N indication increases to 99%.
-APU GEN (amber) OFF (white) comes on.
On the panel 35VU:
-
the OFF legend in the APU GENpushbutton switch goes off.
On the lower ECAM display:
-
the generator load, voltage and frequency indication are in the
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ACTION RESULT -------------------------------------------------------------------------------
11. On the panel 30VU:
-push the APU BLEED pushbutton switch to the ON position.
12. On the panel 30VU:
-push the PACK1 and PACK2 pushbutton switches to the ON position.
13. On the panel 30VU:
-release the PACK1 and PACK2 pushbutton switches to OFF.
14. On the panel 35VU:
-push the APU GEN pushbutton switch to the OFF position.
15. On the panel 25VU:
-release the APU MASTER SW pushbutton switch.
specified limits (no amber or red
indication).
On the panel 30VU:
-the ON legend in the APU BLEEDpushbutton switch comes on.
On the lower ECAM display:
-momentarily there is a small increase in EGT.
On the panel 30VU:
-the OFF legends in the PACK1 andPACK2 pushbutton switches go off.
On the lower ECAM display:
-RPM stays at 100% plus/minus 1%.
-EGT changes to the pneumatic load.
On the panel 30VU:
-
the OFF legends in the PACK1 andPACK2 pushbutton switches come on.
On the panel 35VU:
-
the OFF legend in the APU GENpushbutton switch comes on.
On the lower ECAM display:
-APU GEN (amber) OFF (white) indication comes on.
On the panel 25VU:
-
the AVAIL legend in the STARTpushbutton switch goes off after a delay for APU cooldown.
On the lower ECAM display:
-
the AVAIL indication goes off, when the AVAIL legend in the START pushbutton switch goes off.
-RPM decreases to 75% and stays at 75% for 60 seconds (cool down).
-APU BLEED indicator goes off.
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ACTION RESULT -------------------------------------------------------------------------------
-EGT and N indicator go off, when ECB powered down.
NOTE : To make that the air intake
____ fully closes, wait for amber XX indication of RPM and EGT.to the OFF position.This gives sufficient time for the air intake
(1) On the GND SCANNING menu page make sure that no faults have occured during the operational test.
(a) If a maintenance message is given, you can find the related trouble shooting procedure in the applicable Page Block 101 of the Trouble Shooting Manual.
R **ON A/C 001-003, 051-099, 401-499,
5. Close-up
________
Subtask 49-00-00-860-081
A. Aircraft Maintenance Configuration
(1)
On the MCDU 1(2):
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 机载辅助动力 AIRBORNE AUXILIARY POWER1(122)
