-
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.
CAUTION : DO NOT TRY TO START THE APU A FOURTH TIME UNTIL THE STARTER MOTOR IS
_______ COOL (60 MINUTES MINIMUM). WE RECOMMEND THAT YOU TRY TO START THE APU THREE TIMES, WITH AN INTERVAL OF ONE MINUTE BETWEEN EACH TIME THAT YOU TRY.
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.
CAUTION : DO NOT TRY TO START THE APU AGAIN DURING A REFUEL/DEFUEL PROCEDURE
_______ AFTER AN AUTOMATIC SHUTDOWN OR FAILED APU START. IF YOU DO, THERE IS A RISK OF INJURY AND/OR DAMAGE.
CAUTION : OBEY THE SAFETY PRECAUTIONS.
_______
1. Reason for the Job
__________________
NOTE : Refer to SIL 00-085 for APU operation in extreme hot weather
____
condition
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-33-21-618-001 Pre-conditioning with the APU 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
APU 52-41-00-010-002 Open the Avionics Compartment Doors for Access 52-41-00-410-001 Close the APU Doors after Access
3. Job Set-up
__________
Subtask 49-00-00-941-074
A. Safety Precautions
(1) Make sure that the danger areas are clear of persons and/or equipment.
WARNING : WHILE THE APU OPERATES, DO NOT GO INTO THESE AREAS:
_______
-
THE AREA BEHIND THE APU EXHAUST DUCT: 25m (82ft.)
REARWARD OF THE DUCT, MORE THAN 3m (10ft.) ABOVE THE
GROUND, AND THE WIDTH OF THE HORIZONTAL STABILIZER
-
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.
(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 49-00-00-860-130
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)
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.
Subtask 49-00-00-865-131
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
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