(g) TORQUE the coupling nut to between 450 and 500 lbf.in (5.08 and
5.65 m.daN).
(h) Connect the latch return pipe and the upper latch supply pipe to the interface bracket.
(i) TORQUE the coupling nuts to between 260 and 300 lbf.in (2.93 and
3.39 m.daN).
(j) Attach the electrical harness to the interface bracket with the clamp, the bolt and the nut.
(k) TORQUE the nut to between 30 and 40 lbf.in (0.33 and 0.45 m.daN).
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________ Subtask 78-31-49-860-083
A. Close the Blocker Door: CAUTION : BLOCKER DOOR LATCH MUST BE OPENED WHEN YOU CLOSE THE BLOCKER
_______
DOOR OR DAMAGE CAN OCCUR.
(1) Manually bring blocker doors to stows position (Ref. TASK 78-32-41-860-002).
Subtask 78-31-49-440-098
B. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041) Subtask 78-31-49-410-110
C. 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).
(4) Remove the warning notice(s). Subtask 78-31-49-710-080
D. Bleed the air from the thrust reverser hydraulic system. (Ref. TASK 78-30-00-710-040)
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TASK 78-31-49-000-008
Removal of the Lower Head 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 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
78-31-49-991-325 Fig. 424
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3. Job Set-up
__________ Subtask 78-31-49-941-098
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 78-31-49-010-135
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 the access platform in position. Subtask 78-31-49-040-123
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041)
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4. Procedure
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