(2)
Close the APU access doors 315AL and 316AR (Ref. TASK 52-41-00-410-001).
(3)
If an emergency or a malfunction occurs during operation of the APU, do the emergency shutdown procedure immediately. You can start the emergency shutdown from:
-
the APU FIRE PUSH pushbutton switch on the panel 20VU.
-
the APU SHUT OFF pushbutton switch on the panel 108VU.
R EFF : 001-049, 101-105, 107-107, 151-199, 49-00-00Page 216 201-210, Config-2 Aug 01/05
CES NOTE : Do the emergency shutdown immediately if fire, smoke, unusual
____
noise, fuel or oil leakage occurs.
Subtask 49-00-00-860-088
B. Aircraft Maintenance Configuration
(1)
Open the access door 811 (Ref. TASK 52-41-00-010-002).
(2)
Put the warning notice in position on the opened access door 811 which tells persons not to close the door.
(3)
Remove the APU air intake and exhaust blanking plugs.
(4)
Energize the ground service network
(Ref. TASK 24-42-00-861-001).
(5)
On the ELEC section on the panel 35VU:
-make sure that the BAT 1 and BAT 2 pushbutton switches are in the auto position (the OFF and FAULT legends are off).
(6)
Make sure that there is sufficient fuel in the A/C fuel system.
(7)
Make a service interphone connection from the cockpit to the APU compartment area (Ref. TASK 23-44-00-860-001).
(8)
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.
(9)
On panel 115VU:
-make sure that both ENG MASTER control switches are in OFF position.
(10)
Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001)
(11)
On the ECAM control panel, push the APU p/bsw (on the lower ECAM DU, the APU page comes ON).
(12)
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).
R EFF : 001-049, 101-105, 107-107, 151-199, 49-00-00Page 217 201-210, Config-2 Aug 01/05
CES
(13) If not required during operation of the APU, remove the ground support equipment, the special and standard tools and all other items.
Subtask 49-00-00-865-098
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 49-00-00-860-089
A. Start and operate the APU
CAUTION : OBEY THE SAFETY PRECAUTIONS.
_______
CAUTION : DO NOT OPERATE THE APU WHEN THE MAIN BATTERIES ARE OFF. IF YOU
_______ OPERATE THE APU IN THESE CONDITIONS, YOU CAN CAUSE THESE RESULTS:
-IF THERE IS AN APU FIRE, THE APU FIRE-BOTTLES WILL NOT OPERATE
-
THERE WILL BE NO DE-OILING OF THE APU DURING SHUT-DOWN. THIS WILL CAUSE SMOKE IN THE CABIN
-
THERE WILL BE NO COOL-DOWN SEQUENCE OF THE APU
-THE IGV WILL NOT CLOSE FULLY. THIS CAN CAUSE PROBLEMS WHEN YOU START THE APU AGAIN.
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.
R EFF : 001-049, 101-105, 107-107, 151-199, 49-00-00Page 218 201-210, Config-2 Aug 01/05
CES
-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.
NOTE : If the APU is to be started on EXT POWER, make sure that the
____ batteries are switched ON. If not, the APU may not start and shut down.
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