2.93 m.daN).
NOTE : Apply a witness line of finish paint EA4 blue 5991
____ (Material No. CP2245) on all nuts and connections after they are torqued.
(3) Attach the upper head shield to the middle hydraulic line bracket with the bolts. TORQUE the bolts to between 27 and 30 lbf.in (0.30 and 0.33 m.daN).
5. Close-up
________
Subtask 78-31-49-440-094
A. Make the thrust-reverser serviceable (Ref. TASK 78-30-00-081-041).
Subtask 78-31-49-410-106
B. 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 access platform(s).
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(4) Remove the warning notice(s).
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TASK 78-31-49-000-004
Removal of the Hydraulic Line Upper, Double and Lower Brackets
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.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors
78-30-00-481-041 Make the Thrust Reverser Unserviceable for
Maintenance
78-31-49-991-320 Fig. 419
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3. Job Set-up
__________ Subtask 78-31-49-941-094
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.
(b) Put a warning notice to tell persons not to energize the FADEC 1(2).
Subtask 78-31-49-010-131
B. Get Access
(1) Open the fan cowl doors: (Ref. TASK 71-13-00-010-040)
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
(2) Put a access platform in position. Subtask 78-31-49-040-119
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041)
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(Ref. Fig. 419/TASK 78-31-49-991-320) Subtask 78-31-49-020-091
A. Removal of the Hydraulic Line Upper, Double and Lower Brackets:
(1) Removal of the Hydraulic Line Upper Bracket
(a) Remove the nuts and the bolts that attach the flange and the upper half clamp to the upper bracket.
(b) On the right forward frame, remove the nut, the bolt and the clamp that attach the electrical harness to the upper bracket.
(c) Remove the nuts and the bolts that attach the upper bracket to the forward frame.
(d) Remove the upper bracket from the forward frame.
(2) Removal of the Hydraulic Line Double Bracket 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 2(7)
