(3) Remove the access platform(s).
(4) Remove the warning notice(s).
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SERVO FUEL HEATER - SERVICING
_____________________________
TASK 73-11-20-620-002
Preservation of the Servo fuel Heater
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific blanking plugs
B. Consumable Materials
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
Material No. CP2442 *
engine oil (Ref. 70-30-00)
3. Job Set-up
__________
Subtask 73-11-20-869-052
A. Not Applicable
4. Procedure
_________
Subtask 73-11-20-640-050
A. Preservation of the Servo Fuel Heater :
(1) Fill engine oil (Material No. CP2442) in fuel and oil circuits of servo fuel heater.
(2) Install blanking plugs on servo fuel heater.
(3) Shake the unit for one minute approximately.
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(5) Install blanking plugs on the ends of the removed tubes.
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SERVO FUEL HEATER - REMOVAL/INSTALLATION
________________________________________ TASK 73-11-20-000-002 Removal of the Servo Fuel Heater
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking plugs No specific container capacity 0.25 US gal (1l) No specific protective covers No specific warning notice
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors 73-11-20-620-002 Preservation of the Servo fuel Heater 73-11-20-991-300 Fig. 401
3. Job Set-up
__________ Subtask 73-11-20-941-052
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a warning notice to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
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(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a warning notice to tell persons not to energize the FADEC 1(2).
Subtask 73-11-20-010-053
B. Open the fan cowl doors: (Ref. TASK 71-13-00-010-040)
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
(1) Place a container capacity 0.25 US gal (1l) below the servo fuel heater.
4. Procedure
_________ (Ref. Fig. 401/TASK 73-11-20-991-300) Subtask 73-11-20-020-051
A. Removal of the Servo Fuel Heater
(1) Disconnect the fuel pump HP tube (250) from the FUEL IN tube (260).
(2) Disconnect the FUEL IN tube (260) from:
(a) The FUEL IN nipple (10) of servo fuel heater (80).
(b) The fuel pump, and remove FUEL IN tube (260).
(3) Remove the OIL IN tube (240) as follows: 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320飛機維護手冊 AMM 發動機燃油和控制 ENGINE FUEL AND CONTRO(46)
