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3. Job Set-up
__________ Subtask 78-30-00-941-054
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 78-30-00-010-053
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 an access platform in position. Subtask 78-30-00-040-051
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041)
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4. Procedure
_________
(Ref. Fig. 301/TASK 78-30-00-991-305, 302/TASK 78-30-00-991-306)
Subtask 78-30-00-680-050
A. Drain the pipes of the actuactor system. WARNING : WEAR A FACE SHIELD WHICH IS RESISTANT TO HIGH PRESSURE JETS
_______
WHEN YOU WORK ON PRESSURIZED SYSTEMS.
WARNING : IF YOU GET THE FLUID ON YOUR SKIN OR IN YOUR EYES:
_______
- FLUSH IT AWAY WITH CLEAN WATER
- 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.
CAUTION : MAKE SURE THERE IS NO UNWANTED MATERIAL IN THE PORTS AND
_______
ORIFICES OR DAMAGE CAN OCCUR.
CAUTION : YOU MUST INSTALL HYDRAULIC TUBES WITH HYDRAULIC FLUID AS
_______
LUBRICANT.
NOTE : The procedure is the same for LH and RH sides.
____
(1) Put a container 1 USgal (4 l) under the lower blocker door actuator.
(2) Disconnect the nuts of head and rod supply hoses from the actuator. Let the hydraulic fluid drain completely from the hoses.
(3) Reconnect the nut of the head supply hose on the lower blocker door actuator.
(4) TORQUE the nut to between 2.7 and 3.0 m.daN (19.91 and 22.12 lbf.ft)
(5) Reconnect the nut of the rod supply hose on the lower blocker door actuator.
(6) TORQUE the nut to between 1.5 and 1.7 m.daN (11.06 and 12.53 lbf.ft)
(7) Remove the container.
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Drain Locations for the Left Door of the Thrust Reverser
Figure 301/TASK 78-30-00-991-305
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Drain Locations for the Right Door of the Thrust Reverser
Figure 302/TASK 78-30-00-991-306
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________ Subtask 78-30-00-440-051
A. Make thrust reverser serviceable (Ref. TASK 78-30-00-081-041). Subtask 78-30-00-410-053
B. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Remove the access platform(s).
(3) Close the fan cowl doors: (Ref. TASK 71-13-00-410-040)
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
(4) Remove the warning notice(s).
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