(3) Connect the drain tube (25) to the drain tube (20). Do not torque the coupling nut at this time.
(4) Connect the drain tube (20) to the drain reservoir module. Do not torque the coupling nut at this time.
(5) Attach the drain tube (25) to the clamp on the heat exchanger drain tube (30) with the clamp (5), the bolt (10) and the nut (15).
(6) Attach the drain tube (20) to the bracket on the transfer gearbox with the clamp (5), the bolt (10) and the nut (15).
(7) Make sure that the drain tubes (20) and (25) are aligned correctly on the engine.
(8) TORQUE the nuts (15) to between 20 and 25 lbf.in (0.22 and 0.28 m.daN).
(9) Torque the drain tubes and coupling nuts. CAUTION : USE A SECOND WRENCH TO HOLD THE FITTINGS WHEN YOU
_______ LOOSEN/TIGHTEN THE TUBE COUPLING NUTS. THIS PREVENTS DAMAGE TO THE TUBES.
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(a) TORQUE the drain tubes (25) and (20) coupling nuts to between 200 and 250 lbf.in (2.26 and 2.82 m.daN).
5. Close-up
________
Subtask 71-73-49-410-055
A. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Close the fan cowl doors: (Ref. TASK 71-13-00-410-040)
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
(3) Remove the warning notice(s).
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Removal of the Fuel Servos Drain Tubes
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific container 1 l (0.25 USgal) No specific protective covers No specific warning notice
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors 71-73-49-991-303 Fig. 404
3. Job Set-up
__________ Subtask 71-73-49-941-056
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.
(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.
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(b) Put a warning notice to tell persons not to energize the FADEC 1(2).
Subtask 71-73-49-010-056
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. 404/TASK 71-73-49-991-303) Subtask 71-73-49-020-055
A. Removal of the Fireshield to Fuel Servos Drain Tube
(1) Put a container 1 l (0.25 USgal) below the fireshield to fuel servos drain tube (30) to catch any fuel remaining in the tubes.
(2) Disconnect the drain tube (30) from the drain tube (20) and let the fluid drain into the container.
(3) Remove the bolt (25), the nut (15) and the clamp (5) that attach the drain tube (30).
(4) Remove the drain tube (30) from the engine.
(5) Put protective covers on the fireshield fitting, and the drain tubes
(20) and (30).
(6) Remove the container from below the engine. Subtask 71-73-49-020-070
B. Removal of the Fuel Servos Drain Tube
(1) Put a container 1 l (0.25 USgal) below the drain mast to catch any fuel remaining in the tubes.
(2) Disconnect the fuel servos drain tube (20) from the heat exchanger drain tube and let the fluid drain into the container.
(3) Disconnect the fireshield to servos drain tube (30) from the drain tube (20). 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(113)
