Maintenance 78-30-00-481-041 Make the Thrust Reverser Unserviceable for Maintenance R 78-31-00-710-042 Operational Test of the Thrust Reverser System 78-31-41-000-001 Removal of the Blocker Door Hydraulic Actuator (3001KM1,3001KM2,3001KM3, 3001KM4) 78-31-41-400-001 Installation of the Blocker Door Hydraulic Actuator
(3001KM1,3001KM2,3001KM3, 3001KM4)
78-31-41-991-308 Fig. 501
78-31-41-991-305 Fig. 502
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3. Job Set-up
__________ Subtask 78-31-41-941-052
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 78-31-41-010-053
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 the access platform in the position. Subtask 78-31-41-040-051
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
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4. Procedure
_________
Subtask 78-31-41-869-053
A. Operational Test of the Secondary Lock. (Ref. Fig. 501/TASK 78-31-41-991-308, 502/TASK 78-31-41-991-305)
NOTE : The procedure is the same for each actuator.
____
(1) Turn the Dzus fastener on the thermal blanket (40) to loosen it and remove the blanket from the blocker door latch (15).
(2) Turn the manual unlock shaft on the blocker door latch to the unlock position with a 5/16 in. (7.9 mm) wrench.
NOTE : The manual unlock shaft can be accessed through a slot on the
____ right or left side of the blocker door latch.
(3) Pull the blocker door by hands to make sure that the door cannot open. If the door opens, replace the actuator (Ref. TASK 78-31-41-000-001) or (Ref. TASK 78-31-41-400-001).
(4) Push in on the blocker door until the latch engages to close the blocker door.
(5) Put the thermal blanket (40) on the blocker door latch (15). Turn the Dzus fastener on the blanket (40) 1/4 turn to lock it.
5. Close-up
________ R Subtask 78-31-41-440-051 R A. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041).
(1) Remove the lock-out pin from the operating control lever on the HCU. R Subtask 78-31-41-869-061 R B. Do an operational test of the Thrust Reverser System (Ref. TASK 78-31-00-
710-042).
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Thermal Blankets of the Blocker Door Latches
Figure 501/TASK 78-31-41-991-308
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Hydraulic Actuator and Latch
Figure 502/TASK 78-31-41-991-305
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C. Close Access
(1) Remove the access platform(s).
(2) Close the fan cowl doors: (Ref. TASK 71-13-00-410-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(3) Remove the warning notice(s). 中國航空網(wǎng) www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320飛機維護手冊 AMM EXHAUST 1(71)
