(4)
On the ELEC section on the panel 35VU:
-push the BAT 1 and BAT 2 pushbutton switches in the auto position (the OFF and FAULT legends are off).
(5)
Make sure that there is sufficient fuel in the A/C fuel system.
(6)
On the AIR COND section of the panel 30VU:
-
make sure that the APU BLEED pushbutton switch is in the off position (the ON and FAULT legends are off).
-
make sure that the X BLEED selector switch is in the AUTO position.
(7)
Make a service interphone connection from the cocpit to the APU compartment area (Ref. TASK 23-44-00-860-001).
(8)
On Panel 115VU:
-make sure that both ENG MASTER control switches are in OFF position.
(9)
Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001).
(10)
On the ECAM control panel, push the APU p/bsw (on the lower ECAM DU, the APU page comes ON).
(11)
Make sure that the APU fire and overheat detection system and the APU fire extinguishing system are operational (Ref. TASK 26-22-00-710-001).
Subtask 49-00-00-865-130
C. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU APU/FUEL/BLOW OFF/PUMP 2QC B14 121VU APU/FUEL/BLOW OFF/CTL 1QC K39 121VU APU/FIRE AND OVHT/DET/LOOP B 2WG L44 121VU APU/FIRE AND OVHT/DET/LOOP A 1WG L43 121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41 121VU APU/FIRE/EXTIG/SQUIB/B 2WF L39 121VU APU/FIRE/EXTIG/SQUIB/A 1WF L38 121VU APU/FIRE/LP VALVE/NORM 4WF M42 121VU APU/FIRE/LP VALVE/STBY 3WF M41 121VU APU/FUEL/LP VALVE/CTL 1QF M40 121VU APU/FUEL/LP VALVE/SPLY 2QF M39 121VU APU/FUEL/PUMP/CTL 3QC M38
4. Procedure_________
Subtask 49-00-00-860-126
A. Start and operate the APU
CAUTION : OBEY THE SAFETY PRECAUTIONS.
_______
NOTE : If the APU must be started on BAT and the OAT is 0 deg. C or less,
____
we recommend:
-
to select the APU GEN to provide A/C electrical power.
-
to start L1 or L2 main fuel boost pump. This you must do immediately after the APU started and the AVAIL light is ON. In this way you avoid APU AUTO S/D because air in the APU fuel delivery line.
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the APU section on the panel On the APU section on the panel 25VU: 25VU:
-push the APU MASTER SW - the ON legend in the APU MASTER SW pushbutton switch. pushbutton switch comes ON.
2. On the APU FIRE panel 20VU: On the APU FIRE panel 20VU:
-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
-push and hold the APU FIRE TEST p/bsw.
-release the APU FIRE TEST
p/bsw.
3. On the APU section on the panel 25VU:
-push the APU START pushbutton switch.
At the end of the APU start
sequence:
-
the APU FIRE light in the APU FIREp/bsw comes on (half-light).
-
the SQUIP/DISCH legends in the AGENT p/bsw comes on.
-
the APU FIRE light and theSQUIP/DISCH legends go off.
On the APU section on the panel 25VU:
-
the ON legend in the APU STARTpushbutton switch comes on .
NOTE : The ECB (59KD) controls and
____ monitors the APU start.
On the panel 25VU:
-
the ON legend in the APU START pushbutton switch goes off.
-
the AVAIL legend in the APU START pushbutton switch comes on.
NOTE : If necessary, the APU generator can energize the aircraft
____
electrical circuits (Ref. TASK 24-41-00-861-002). NOTE : If necessary, the APU can supply bleed air for the____
pre-conditioning (Ref. TASK 12-33-21-618-001).
TASK 49-00-00-860-004 APU Shutdown by External Power (GTCP 36-300) WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______ WHEN YOU DO THE MAINTENANCE TASK(S).
CAUTION : DO NOT USE THE APU DURING FLUID DE-ICING OPERATIONS. DE-ICING FLUID
_______ CAN CONTAMINATE THE INSIDE OF THE APU.
CAUTION : DO NOT START THE APU WITH ACCESS DOORS 315AL AND 316AR OPEN/REMOVED.
_______ THE APU FIRE EXTINGUISHER SYSTEM IS NOT SUFFICIENT TO EXTINGUISH A FIRE IF THE ACCESS DOORS 315AL AND 316AR ARE OPEN/REMOVED.
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