-
the AVAIL legend in the START pushbutton switch is on.
On the lower ECAM display:
-AVAIL indication is on.
-EGT in limits.
-N indication shows 100% N.
-APU generator voltage and frequency indications are displayed.
-the APU bleed valve symbol is in closed position.
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CES
-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
10. On the panel 35VU:
-push the APU GEN pushbutton switch and release.
11. On the panel 30VU:
-push the APU BLEED pushbutton switch to ON.
12. On the panel 30VU:
-push the PACK1 and PACK2 pushbutton switches to on.
13. On the panel 30VU:
-release the PACK1 and PACK2 pushbutton switches to OFF.
On the panel 35VU:
-
the APU GEN switch OFF light goesoff.
On the lower ECAM display:
-
the generator load, voltage and frequency indications are in the specified limits (no amber or red indications).
On the panel 30VU:
-
the APU BLEED pushbutton switch ONlegend comes on.
On the lower ECAM display:
-momentarily there is a small increase in EGT.
-
the APU bleed valve symbol is in open position.
-
the APU bleed pressure indication shows that the bleed pressure has increased.
On the panel 30VU:
-
the OFF legends in the PACK1 andPACK2 pushbutton switches go off.
On the lower ECAM display:
-
the N indication reduces to 99%.
-
the EGT indication changes to the pneumatic load condition.
-all indications show that the APU operates in the specified limits (no amber or red indications).
On the panel 30VU:
-
the OFF legends in the PACK1 andPACK2 pushbutton switches come on.
On the lower ECAM display:
-
the N indication stays at 99%.
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CES
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------NOTE : If TAT is above 32 deg.C (86
____ deg.F) the N indication changes to 100%.
-the EGT indication changes to the no pneumatic load condition.
14. On the panel 25VU: On the panel 25VU:
-release the APU MASTER SW - the ON legend in the APU MASTER SW pushbutton switch to the off pushbutton switch goes off. position. - the AVAIL legend in the APU START
pushbutton switch stays on during the APU cooldown delay of approx. 1 minutes. It goes off after the APU cooldown delay is completed.
On the lower ECAM display:
-APU BLEED valve symbol changes to the closed position.
On the lower ECAM display:
-
the AVAIL indication goes off, when the AVAIL legend in the APU START pushbutton switch goes off.
-
the EGT and N indications go off, when the ECB is powered down.
NOTE : You must wait 2 minutes after the AVAIL legend goes off before you
____ select BAT 1and BAT 2 to the OFF position. This gives sufficient time for the air intake to fully close.
(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.
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CES 5. Close-up
________ Subtask 49-00-00-860-097
A. Aircraft Maintenance Configuration
(1)
On the MCDU 1(2):
-push the line key adjacent to the RETURN indication until the MCDU MENU page comes on, 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(136)
