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27-31-15
ALL ú ú 01 Page 406 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 024-023
(12)
Remove the first officer's aft quadrant and torque tube.
S 034-024
(13)
Remove the indexer bracket on the aft quadrant.
S 034-025
(14)
Remove the two fasteners that hold the captain's aft quadrant and torque tube to the support structure of the torque box.
S 024-026
(15)
Remove the captain's aft quadrant and torque tube.
TASK 27-31-15-424-027
3. Install the Aft Quadrant
________________________
A. Equipment
(1)
Removal Tool, Decentering Springs, Elevator - B27060-1
B.
Consumable Materials
(1)
D00633 Grease, Corrosion Preventive - BMS 3-33 (recommended)
(2)
D00015 Grease, Corrosion Preventive - BMS 3-24 (optional)
C.
References
(1)
06-42-00/201, Empennage Access Doors and Panels
(2)
24-22-00/201, Electrical Power - Control
(3)
27-31-00/501, Elevator Control System
(4)
27-31-03/401, Asymmetry Limiter Actuator
D.
Access
(1)
Location Zones 211/212 Control Cabin 311/312 Area Aft of Pressure Bulkhead to BS 1787.45 313/314 Stabilizer Center Section Compartment
(2)
Access Panels
311AL Forward Stabilizer Compartment
313AL Elevator Aft Quadrants
E.
Install the Elevator Aft Quadrants (Fig. 402)
NOTE: You must apply a layer of corrosion preventive grease on all
____ fasteners, bushings, and bearings that will be installed at movable joints.
S 434-028
(1)
Install the two fasteners that attach the captain's aft quadrant and torque tube to the support structure of the torque box and tighten the nuts as follows:
(a)
Tighten the inner nut to 50-60 pound-inches (5.6-6.7 newton-meters).
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27-31-15
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
(b) Tighten the outer nut to 10 pound-inches (1.1 Nm). NOTE: Do not try to tighten the inner nut again.
____
(2) S 434-029Install the indexer bracket on the aft quadrant.
(3) S 434-030Install the three fasteners to attach the first officer's aft quadrant and torque tube to the captain's aft quadrant and torque tube.
(4) S 434-031Install the two cam springs on the override mechanism.
(5) S 434-032Install the asymmetry limiter actuator (Ref 27-31-03).
(6) S 094-033Remove the identification tags and connect the captain's and the first officer's elevator control cables to the aft quadrants.
(7) S 434-034Connect the left and right output control rods to the output arms on the aft quadrant.
(8) S 434-035Connect the two control rods for the elevator feel unit to the aft quadrant flanges.
(9) S 434-036Use the spring removal tool to install the four decentering springs on the elevator feel unit.
S 434-037
(10)
Connect the three control rods for the autopilot pitch control servo (APCS) to the aft quadrant flanges.
S 094-038
(11)
Remove rig pins E/ST6, E/ST8 and E/ST9.
S 824-039
(12)
Do the adjustment for the elevator control system (Ref 27-31-00).
S 714-040
(13)
Do the operational test for the elevator control system (Ref 27-31-00).
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27-31-15 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 3(108)
