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C. Referenced Information
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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 78-30-00-710-040 Thrust Reverser Hydraulic System Bleed Procedure 78-31-49-991-302 Fig. 403
3. Job Set-up
__________
Subtask 78-31-49-860-084
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 78-31-49-010-141
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 78-31-49-040-127
C. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
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4. Procedure
_________ (Ref. Fig. 403/TASK 78-31-49-991-302) Subtask 78-31-49-420-075
A. Installation of the Lower Supply Pipe of the Left Latch
(1) Remove the protective covers from the pipe ends.
(2) Put the lower supply pipe in position on the forward frame.
(3) Connect the lower supply pipe to the upper and lower latches.
(4) TORQUE the coupling nuts to between 130 and 150 lbf.in (1.46 and 1.69 m.daN).
(5) Attach the upper half clamp to the lower hydraulic line bracket with the bolt and the washer.
(6) Attach the double flange and the upper half clamps to the double hydraulic line bracket with the nut and the bolts.
(7) Attach the upper half clamp to the middle hydraulic line bracket with the bolt and the washer.
(8) TORQUE all the bolts that attach the upper half clamps 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
____ No. CP2245) on all nuts and connections after they are torqued.
5. Close-up
________ Subtask 78-31-49-440-079
A. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041).
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B. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Close fan cowl doors : (Ref. TASK 71-13-00-410-040)
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
(3) Remove the access platform(s).
(4) Remove the warning notice(s). Subtask 78-31-49-710-069
C. Bleed the air from the thrust reverser hydraulic system. (Ref. TASK 78-30-00-710-040)
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TASK 78-31-49-000-044
Removal of the Lower Supply Pipe of the Right Latch
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
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