(2) Put the access platform in position. Subtask 78-31-49-040-101
 C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
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 4. Procedure
_________ (Ref. Fig. 402/TASK 78-31-49-991-301) Subtask 78-31-49-020-075
 A. Removal of the Upper Supply Pipe of the Left Latch
 (1) Put a container 1 USgal (4 L) under the upper latch of the blocker door.

 (2) Disconnect the upper supply pipe from the upper latch and let the hydraulic fluid drain into the container.

 (3) Remove the nuts and the bolts that attach the flange and the upper half clamp to the upper hydraulic line bracket.

 (4) Disconnect the interface hydraulic hose from the upper supply pipe.

 (5) Remove the nut that attach the upper supply pipe to the interface bracket.

 (6) Remove the upper supply pipe from the forward frame.

 (7) Put protective covers on the pipe ends.

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 Upper Supply Pipe of the Left Latch
 Figure 402/TASK 78-31-49-991-301- 12 (SHEET 1)
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 Upper Supply Pipe of the Left Latch
 Figure 402/TASK 78-31-49-991-301- 22 (SHEET 2)
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 TASK 78-31-49-400-042

 Installation of the Upper Supply Pipe of the Left Latch
 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  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 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)
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. CP2245  *
 finish paint EA4 blue 5991 (Ref. 70-30-00)

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 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 78-31-49-991-301 Fig. 402
 3. Job Set-up
__________
 Subtask 78-31-49-860-082
 A. Aircraft Maintenance Configuration
　
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