CES
(10)
Repeat steps (6) thru (8) at the two remaining pilot nozzle positions.
(11)
Put blanking plugs on the disconnected line ends.
(12)
Remove the container.
TASK 49-31-41-200-003 Inspection / Check of the Pilot Fuel Nozzles and Manifold (APS 3200) WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______ WHEN YOU DO THE MAINTENANCE TASK(S).
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
49-31-41-000-002 Removal of the Pilot Fuel Nozzles and Manifold (APS 3200) 49-31-41-400-002 Installation of the Pilot Fuel Nozzles and Manifold (APS 3200)
3. Job Set-up
__________ Subtask 49-31-41-020-056
A. Remove the Manifold and Fuel Nozzles (Ref. TASK 49-31-41-000-002).
4. Procedure
_________ Subtask 49-31-41-020-053
A. Inspection of the Fuel Nozzles and Manifold.
(1)
Inspect the manifold fuel tube insulation for splitting, hardening and porosity. None is permitted.
(2)
Make sure that the nozzle fuel-inlet connections (3) are not damaged, or blocked with carbon material.
(3)
Examine the nozzle mounting bosses (6) and make sure that they are clean and not damaged.
(4)
Examine the atomizer assembly for damage or carbon material. None is permitted.
(5)
Blow filtered air through each nozzle connection. Make sure that there are no blockages.
NOTE : If a blockage is found replace the nozzle assembly.
____
________
5. Close-up
Subtask 49-31-41-420-055
A. Install the Fuel Nozzles and Manifold (Ref. TASK 49-31-41-400-002).
TASK 49-31-41-400-002
Installation of the Pilot Fuel Nozzles and Manifold (APS 3200)
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
No specific Torque Wrench : range 0.00 to 1.20 m.daN
(0.00 to 9.00 lbf.ft)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 04-014 USA MIL-PRF-907 HIGH TEMPERATURECOMPOUND (Ref. 20-31-00)
C. Expendable Parts
-------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
gaskets 49-31-04 50 -100
D. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 49-00-00-860-005 APU Start by External Power (APS 3200) 49-00-00-860-006 APU Shutdown by External Power (APS 3200) 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access 49-31-41-991-002 Fig. 201
3. Job Set-up
__________
Subtask 49-31-41-860-051
A. Aircraft Maintenance Configuration
(1)
Make sure that the aircraft electrical circuits are energized (Ref. TASK 24-41-00-861-002).
(2)
On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(3)
Make sure that there is a warning notice in the cockpit to tell persons not to start the APU.
(4)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
(5)
Make sure that the access platform is in position below the APU compartment.
(6) 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 POWER4(24)
