(3) Connect the lower rod supply hose to the actuator.
(4) TORQUE the coupling nut to between 130 and 150 lbf.in (1.46 and 1.69 m.daN).
NOTE : Apply a witness line of finish paint EA4 blue 5991 (Material
____ No. CP2245) on the nut and connection after they are torqued.
(5) Remove the bolt and the washer that attach the upper half clamp to the middle hydraulic line bracket.
(6) Remove the bolt that attach the upper head shield to the middle hydraulic line bracket. Remove the shield.
(7) Disconnect the upper rod supply hose from the swivel joint and the upper hydraulic actuator.
(8) Remove the upper rod supply hose from the forward frame.
(9) Put protective covers on the hose ends.
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Upper Rod Supply Hose
Figure 407/TASK 78-31-49-991-308
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TASK 78-31-49-400-047
Installation of the Upper Rod Supply Hose
WARNING : WEAR A FACE SHIELD WHICH IS RESISTANT TO HIGH PRESSURE JETS WHEN YOU
_______
WORK ON PRESSURIZED SYSTEMS.
R WARNING : DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:
_______ R - FLUSH IT AWAY WITH CLEAN WATER R - GET MEDICAL AID.
CAUTION : USE 2 WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS.
_______
ONE WRENCH TO HOLD THE UNION AND ONE TO LOOSEN OR TIGHTEN THE
COUPLING NUT. THIS WILL PREVENT DAMAGE TO THE HARDWARE.
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice
No specific access platform 1 m (3 ft. 3 in.) 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 36.00 to 220.00 lbf.in
(0.40 to 2.60 m.daN)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. CP2245 *
finish paint EA4 blue 5991 (Ref. 70-30-00)
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C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 78-30-00-710-040 Thrust Reverser Hydraulic System Bleed Procedure 78-31-49-991-308 Fig. 407
3. Job Set-up
__________
Subtask 78-31-49-860-088
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.
Subtask 78-31-49-010-145
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 78-31-49-040-135
C. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
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4. Procedure
_________ (Ref. Fig. 407/TASK 78-31-49-991-308) Subtask 78-31-49-420-079
A. Installation of the Upper Rod Supply Hose
(1) Remove the protective covers from the hose ends.
(2) Put the upper rod supply hose in position on the forward frame. 中國航空網 m.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320飛機維護手冊 AMM EXHAUST 1(99)
