(2) Put the latch return pipe in position on the forward frame.
(3) Connect the latch return pipe to the interface bracket with the nut.
(4) TORQUE the nut to between 260 and 300 lbf.in (2.93 and 3.39 m.daN).
(5) Connect the latch return pipe to the lower latch.
(6) TORQUE the coupling nut to between 130 and 150 lbf.in (1.46 and 1.69 m.daN).
(7) Connect the interface hydraulic hose to the latch return pipe.
(8) TORQUE the coupling nut to between 113 and 125 lbf.in (1.27 and 1.41 m.daN).
(9) Attach the upper half clamp to the lower hydraulic line bracket with the bolt and the washer.
(10) Attach the double flange and the upper half clamps to the double hydraulic line bracket with the bolts and the nut.
(11) Attach the upper half clamp to the middle hydraulic line bracket with the bolt and the washer.
(12) Attach the flange and the upper half clamp to the upper hydraulic line bracket with the bolts and the nuts.
(13) 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.
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________ Subtask 78-31-49-440-076
A. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041). Subtask 78-31-49-410-084
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 78-31-49-710-067
C. Bleed the air from the thrust reverser hydraulic system. (Ref. TASK 78-30-00-710-040)
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TASK 78-31-49-000-042
Removal of the Upper Supply Pipe of the Left 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
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific container 1 USgal (4 L)
No specific protective covers
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
78-31-49-991-301 Fig. 402
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3. Job Set-up
__________ Subtask 78-31-49-941-076
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 78-31-49-010-109
B. Get Access
(1) Open fan cowl doors: (Ref. TASK 71-13-00-010-040)
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