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(b) Put a warning notice to tell persons not to energize the FADEC 1(2).
Subtask 71-73-49-010-058
B. Open the fan cowl doors: (Ref. TASK 71-13-00-010-040)
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
4. Procedure
_________
(Ref. Fig. 406/TASK 71-73-49-991-305)
Subtask 71-73-49-020-057
A. Removal of the Heat Exchanger Drain Tube
(1) Put a container 1 l (0.25 USgal) below the drain mast to catch any fuel remaining in the tube.
(2) Disconnect the heat exchanger drain tube (35) from the drain manifold module and let the fluid drain into the container.
(3) Disconnect the hydro mechanical unit and the fuel servos drain tubes
(5) and (10) from the drain tube (35).
(4) Remove the bolt (25), the nut (30) and the clamp (20) that attach the drain tube (35) to the bracket near the fuel pump.
(5) Remove the bolt (25), the nut (30) and the clamp (20) that attach the drain tube (35) to the clamp on the fuel pump drain tube (15).
(6) Disconnect the drain tube (35) from the heat exchanger.
(7) Remove the heat exchanger drain tube (35) from the engine.
(8) Put protective covers on the heat exchanger, the drain manifold module, and the drain tubes.
(9) Remove the container from below the drain mast.
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Heat Exchanger Drain Tube Figure 406/TASK 71-73-49-991-305
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TASK 71-73-49-400-026
Installation of the Heat Exchanger Drain Tube
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
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A. Fixtures, Tools, Test and Support Equipment
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REFERENCE QTY DESIGNATION
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No specific warning notice
R No specific Torque Wrench : range 5.00 to 35.00 lbf.in
R (0.05 to 0.40 m.daN) No specific Torque Wrench : range 96.00 to 900.00 lbf.in
(1.00 to 10.00 m.daN)
B. Referenced Information
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REFERENCE DESIGNATION
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71-13-00-010-040 Opening of the Fan Cowl Doors
71-13-00-410-040 Closing of the Fan Cowl Doors
71-73-49-991-305 Fig. 406
3. Job Set-up
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Subtask 71-73-49-860-055
A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a warning notice is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a warning notice is in position to tell persons not to energize the FADEC 1(2).
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B. Make sure that the fan cowl doors are open: (Ref. TASK 71-13-00-010-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
4. Procedure
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(Ref. Fig. 406/TASK 71-73-49-991-305) Subtask 71-73-49-420-057
A. Installation of the Heat Exchanger Drain Tube
(1) Remove the protective covers from the heat exchanger, the drain manifold module, and the drain tube.
(2) Connect the heat exchanger drain tube (35) to the heat exchanger. Do not torque the coupling nut at this time.
(3) Connect the drain tube (35) to the drain manifold module. Do not torque the coupling nut at this time.
(4) Attach the drain tube (35) to the clamp on the fuel pump drain tube
(15) with the clamp (20), the bolt (25) and the nut (30).
(5) Attach the drain tube (35) to the bracket near the fuel pump with the clamp (20), the bolt (25) and the nut (30).
(6) Connect the hydro mechanical unit and fuel servos drain tubes (5) and
(10) to the drain tube (35). Do not torque the coupling nuts at this time. 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 动力装置 POWER PLANT 2(117)
