(a) Remove the nuts and the bolts that attach the double flange and the upper half clamps to the double bracket.
(b) Remove the nut, the bolt and the clamp from the double bracket.
(c) Remove the nuts and the bolts that attach the double bracket to the forward frame.
(d) Remove the double bracket from the forward frame.
(3) Removal of the Hydraulic Line Lower Bracket
(a) Remove the nut and the bolt that attach the washer and the upper half clamp to the lower bracket.
(b) Remove the nuts and the bolts that attach the lower bracket to the forward frame.
(c) Remove the lower bracket from the forward frame.
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Upper, Double, and Lower Brackets
Figure 419/TASK 78-31-49-991-320
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TASK 78-31-49-400-004
Installation of the Hydraulic Line Upper, Double and Lower Brackets
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.) R No specific Torque Wrench : range 5.00 to 35.00 lbf.in R (0.05 to 0.40 m.daN)
No specific Torque Wrench : range 30 to 40 lbf.in
(0.33 to 0.45 m.daN)
No specific Torque Wrench : range 36.00 to 220.00 lbf.in
(0.40 to 2.60 m.daN)
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B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. CP2245 * finish paint EA4 blue 5991 (Ref. 70-30-00) Material No. CP2318 * blendexite RT342/2 (Ref. 70-30-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 78-31-49-991-320 Fig. 419
3. Job Set-up
__________
Subtask 78-31-49-860-099
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.
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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 78-31-49-040-144
C. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
4. Procedure
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