(3) Connect the drain tube (20) to the drain manifold module. Do not torque the coupling nut at this time.
(4) Attach the drain tube (20) to the fan case channel with the clamp (5) and the bolt (10).
(5) Attach the drain tube (20) to the fan case bracket with the clamp (5), the bolt (10) and the nut (15).
(6) Attach the drain tube (20) to the clamp on the fan case drain tube with the clamp (5), the bolt (10) and the nut (15).
(7) Make sure that the drain tube (20) is aligned correctly on the engine.
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R (8) TORQUE the bolt (10) on the fan case channel to between 20 and 25 R lbf.in (0.22 and 0.28 m.daN).
R (9) TORQUE the nuts (15) to between 20 and 25 lbf.in (0.22 and 0.28 R m.daN).
R (10) Torque the drain tube and hose coupling nuts.
R CAUTION : USE A SECOND WRENCH TO HOLD THE FITTINGS WHEN YOU
_______ R LOOSEN/TIGHTEN THE TUBE COUPLING NUTS. THIS PREVENTS DAMAGE R TO THE TUBES.
R (a) TORQUE the drain tube (20) and the drain hose (25) coupling nuts R to between 200 and 250 lbf.in (2.26 and 2.82 m.daN).
R **ON A/C ALL
5. Close-up
________
Subtask 71-73-49-410-053
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 Fan Case 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 71-73-49-991-301 Fig. 402
3. Job Set-up
__________ Subtask 71-73-49-941-054
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 71-73-49-010-054
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. 402/TASK 71-73-49-991-301)
Subtask 71-73-49-020-053
A. Removal of the Fuel Return Valve Drain Tube
(1) Put a container 1 l (0.25 USgal) below the fuel return valve drain tube (30) to catch any fuel remaining in the tube.
(2) Disconnect the drain tube (30) from the upper junction drain tube
(25) and let the fluid drain into the container.
(3) Remove the bolt (10) and the clamp (5) that attach the drain tube
(30) to the fan case bracket.
(4) Disconnect the drain tube (30) from the fuel return valve.
(5) Remove the drain tube (30) from the engine.
(6) Put protective covers on the fuel return valve and the ends of the drain tubes (25) and (30).
(7) Remove the container from below the engine.
Subtask 71-73-49-020-068
B. Removal of the Upper Junction Drain Tube
(1) Put a container 1 l (0.25 USgal) below the upper junction drain tube
(25) to catch any fuel remaining in the tubes. 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 動力裝置 POWER PLANT 2(109)
