(1.00 to 10.00 m.daN)
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B. Consumable Materials
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REFERENCE DESIGNATION
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Material No. CP2245 *
finish paint EA4 blue 5991 (Ref. 70-30-00)
C. Expendable Parts
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FIG.ITEM |DESIGNATION |IPC-CSN
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R 10 packing 78-31-49 01A-260
D. 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
78-30-00-081-041 Make the Thrust Reverser Serviceable after
Maintenance
78-30-00-481-041 Make the Thrust Reverser Unserviceable for
Maintenance
78-31-49-991-315 Fig. 414
3. Job Set-up
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Subtask 78-31-49-860-094
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).
(3) Make sure that the access platform is in position.
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Subtask 78-31-49-010-151
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
Subtask 78-31-49-040-141
C. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
4. Procedure
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(Ref. Fig. 414/TASK 78-31-49-991-315)
Subtask 78-31-49-420-085
A. Installation of the Head Supply Junction Pipe
(1) Remove the protective covers from the pipe ends. R (2) Lubricate the packing (10) with thrust reverser hydraulic fluid.
(3) Put the packing (10) on the fixed end of the upper head swivel joint.
(4) Install the upper head swivel joint on the head supply junction pipe.
(5) TORQUE the swivel joint to between 370 and 410 lbf.in (4.18 and 4.63 m.daN).
(6) Put the junction pipe in position on the forward frame.
(7) Attach the junction pipe to the middle hydraulic line bracket with the nut.
(8) TORQUE the nut to between 450 and 500 lbf.in (5.08 and 5.65 m.daN).
(9) Connect the upper head supply hose to the upper head swivel joint.
(10) TORQUE the coupling nut to between 235 and 260 lbf.in (2.65 and 2.93 m.daN).
(11) Connect the head supply junction pipe to the lower head swivel joint.
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(12) TORQUE the coupling nut to between 235 and 260 lbf.in (2.65 and 2.93 m.daN).
(13) Attach the lower head shield to the forward frame with the bolts and nuts.
(14) TORQUE the nuts to between 61 and 70 lbf.in (0.68 and 0.79 m.daN).
(15) Attach the upper head shield to the middle hydraulic line bracket with the bolts.
(16) TORQUE the bolts to between 27 and 30 lbf.in (0.30 and 0.33 m.daN). NOTE : Apply a witness line of finish paint EA4 blue 5991 (Material 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 EXHAUST 1(114)
