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(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 78-31-49-010-127
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 78-31-49-040-116
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
Subtask 78-31-49-010-128
D. Open the thrust reverser doors: (Ref. TASK 78-36-00-010-040)
FOR 1000EM1
451AL, 452AR
FOR 1000EM2
461AL, 462AR
4. Procedure
_________
(Ref. Fig. 416/TASK 78-31-49-991-317)
Subtask 78-31-49-020-088
A. Removal of the Left or Right Inner Supply Pipe of the Door-Opening Actuator
(1) Put a container 1 USgal (4 L) under the lower door-opening pipe connection.
(2) Disconnect the supply pipe from the inner supply pipe and let the hydraulic fluid drain into the container.
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Inner Supply Pipe of the Door-Opening Actuator
Figure 416/TASK 78-31-49-991-317- 12 (SHEET 1)
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Inner Supply Pipe of the Door-Opening Actuator
Figure 416/TASK 78-31-49-991-317- 22 (SHEET 2)
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(3) Remove the nut that attach the inner supply pipe to the lower bracket.
(4) Remove the bolts and clamps that attach the supply pipe to the forward frame.
(5) Disconnect the supply hose from the inner supply pipe.
(6) Remove the nut that attach the inner supply pipe to the upper bracket.
(7) Remove the inner supply pipe from the forward frame.
(8) Put protective covers on the pipe ends.
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TASK 78-31-49-400-001
Installation of the Left or Right Inner Supply Pipe of the Door-Opening
Actuator
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.
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.
_______
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.)
No specific Torque Wrench : range 36.00 to 220.00 lbf.in
(0.40 to 2.60 m.daN)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. CP2245 *
finish paint EA4 blue 5991 (Ref. 70-30-00)
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