-
THE AREA AROUND THE APU AIR-INTAKE: 2m (7ft) AROUND THE
INTAKE
-
THE AREA OF THE OIL-COOLER OUTLET.
THERE IS A RISK OF INJURY IF YOU GO INTO THESE AREAS.
(1)
Make sure that the danger areas are clear of persons and/or equipment.
(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.
NOTE : Do the emergency shutdown immediately if fire, smoke, unusual
____
noise, fuel or oil leakage occurs.
Subtask 49-00-00-860-075
B. Aircraft Maintenance Configuration
(1)
Open the access door 811 (Ref. TASK 52-41-00-010-002).
(a) Put the warning notice in position on the opened access door 811 which tells persons not to close the door.
(2)
Energize the aircraft electrical circuits.
(a)
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 ON and FAULT legends are off).
(b)
Energize the aircraft electrical circuits from the external power (Ref. TASK 24-41-00-861-002).
(3)
Make sure that there is sufficient fuel in the A/C fuel system.
(4)
Depressurize the aircraft hydraulic systems
(Ref. TASK 29-00-00-864-001).
(5)
Make a service interphone connection from the cockpit to the APU compartment area (Ref. TASK 23-44-00-860-001).
(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)
On panel 115VU:
-make sure that both ENG MASTER control switches are in OFF position
(8)
Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001)
(a) On the ECAM control panel, push the APU pushbutton switch (on the lower ECAM DU, the APU page comes on).
(9)
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).
(10)
Remove the APU air intake and exhaust blanking plugs.
(11)
If not required during operation of the APU, remove the ground support equipment, the special and standard tools and all other items.
(12)
Do the ECB self test (Ref. TASK 49-00-00-710-005).
(13)
Get access to the CFDS/AVIONICS STATUS page:
-turn the MCDU1(2) BRT knob,
-
push the MCDU MENU mode key,
-
push the line key adjacent to the CFDS indication,
-
push the line key adjacent to the AVIONICS STATUS indication. Keep the AVIONCS STATUS active during the operational test of the APU.
Subtask 49-00-00-865-077
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
-------------------------------------------------------------------------------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
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