(f) Remove the bolts that attach the bracket to the forward frame.
(g) Remove the interface bracket from the forward frame.
(3) Removal of the hydraulic line middle bracket:
(a) Manually bring the blocker door to the deploy position (Ref. TASK 78-32-41-860-001).
(b) Install the SAFETY SLEEVE - PIVOTING DOOR ACTUATOR (HIX3005) on the blocker door actuator (Ref. TASK 78-32-41-480-001).
(c) Disconnect the rod and head supply pipes from the middle bracket. (Ref. Fig. 423/TASK 78-31-49-991-324)
(d) Remove the bolts, the washer and the upper half clamp that attach the upper head shield to the middle bracket.
(e) Disconnect the rod and the head supply junction pipes from the middle bracket.
(f) Remove the bolts and the nuts that attach the bracket to the forward frame.
(g) Carefully move the hydraulic pipes aside and remove the bracket from the forward frame.
(h) Put protective covers on the pipe ends.
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TASK 78-31-49-400-007
Installation of the Interface Bracket, HCU Bracket and Hydraulic Line Middle Bracket
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 protective covers
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)
No specific Torque Wrench : range 96.00 to 900.00 lbf.in
(1.00 to 10.00 m.daN)
HIX3005 1 SAFETY SLEEVE - PIVOTING DOOR ACTUATOR
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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
78-30-00-710-040 Thrust Reverser Hydraulic System Bleed Procedure
78-32-41-480-001 Installation of the Safety Sleeve on Blocker Door
Actuator
78-32-41-860-002 Manual Stowing of the Blocker Door
78-31-49-991-323 Fig. 422
78-31-49-991-324 Fig. 423
3. Job Set-up
__________
Subtask 78-31-49-860-102
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). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM EXHAUST 2(15)
