(b)
Set the manual override lever on the bypass valve to the closed position.
TASK 78-31-00-862-080-N00
7. Thrust Reverser Operation - Retract (Manual Procedure)______________________________________________________
A. References
(1)
AMM 27-62-00/201, Speed Brake Control System
(2)
AMM 27-81-00/201, Leading Edge Flap Systems
(3)
AMM 71-11-04/201, Fan Cowl Panels
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B. Access
(1)
Location Zone
415 and 416 Engine 1 - Thrust Reverser Halves
425 and 426 Engine 2 - Thrust Reverser Halves
435 and 436 Engine 3 - Thrust Reverser Halves
445 and 446 Engine 4 - Thrust Reverser Halves
(2)
Access Panel
413 and 414 Fan Cowl Panels - Engine 1
423 and 424 Fan Cowl Panels - Engine 2
433 and 434 Fan Cowl Panels - Engine 3
443 and 444 Fan Cowl Panels - Engine 4
C.
Procedure
NOTE: Make sure the L. E. and T. E. flaps continue to be in the
____
deactivated condition.
S 432-081-N00
(1) If you installed the hydraulic tubes or the components for the thrust reverser, open the bypass valve:
NOTE:____The bypass valve is on the isolation valve. Keep the bypass valve open to prevent hydraulic lock when you manually operate the thrust reverser sleeves.
(a)
Set the bypass valve to the open position
(b)
Install the streamer pin and the hitch pin to hold the manual override lever on the bypass valve open.
S 862-082-N00
CAUTION: DO NOT USE A SCREWDRIVER BETWEEN THE LOCK PROXIMITY SENSOR AND
_______ THE TARGET TO MOVE THE LOCK LEVER TO THE UNLOCKED POSITION. IF YOU USE A SCREWDRIVER OR OTHER TOOL TO SUPPLY A SEPARATION FORCE, YOU CAN CAUSE DAMAGE TO THE LOCK PROXIMITY SENSOR OR THE TARGET.
(2) Move the lock lever on the locking actuator away from the sensor.
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
RODEND CLEARANCE FOR THE CENTER LOCKING HYDRAULIC ACTUATOR
B
1
THE RODEND CLEARANCE MUST NOT BE
MORE THAN 0.100 INCH (2.54 mm) WITH
THE HYDRAULIC PRESSURE REMOVED.
Thrust Reverser Operation-Deploy/Stow (Manual or Power Method) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址:747-400 AMM 飞机维护手册 EXHAUST 1(50)