757 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 4(69)

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_______ CONTROL ACCESS DOOR, 313AL. YOUR WEIGHT CAN RELEASE THE SPRING-LOADED LATCHES ON THE DOOR. IF YOU FALL THROUGH THE DOOR, INJURIES CAN OCCUR.
 (7) Open the access door for the forward stabilizer compartment, 311AL ú (AMM 06-42-00/201).
 S 034-009
 (8)  
Disconnect the eight hydraulic lines that connect to the actuator brakes and motors at the lower gimbal (there are four on each side of the actuator) (Fig. 401).

 S 034-010

 (9)  
Disconnect the four hydraulic drain seal lines from the actuator brakes and motors.

 S 034-011

 (10)
 Disconnect the hydraulic lines from the actuator unions and clamps and turn them away from the actuator.

 S 034-012

 (11)
 Install plugs and caps on all of the disconnected hydraulic lines and ports.

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A

757 MAINTENANCE MANUAL
FWD
BRACKET TURNBUCKLE I-FRAME (4 LOCATIONS) PINS  BEAM ASEE TELESCOPING 
1TROLLEY INVERTED T-TRACK (VIEW WHEN YOU LOOK UP, AFT AND LEFT OUTBOARD) STABILIZER BALLSCREW ACTUATOR REMOVAL EQUIPMENT 
PINS  TELESCOPING BEAM 
INVERTED T-TRACK  RAIL HANGER 
FISHPOLE HOIST  SLING TROLLEY 
STABILIZER BALLSCREW 
FWD 
A 
1  ACCESS DOOR 311AL IS BETWEEN THESE TWO FRAMES. 
Stabilizer Trim Ballscrew Actuator Installation Figure 402 (Sheet 1) 

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757
MAINTENANCE MANUAL

AFT OF ACCESS FIRST UPPER BULKHEAD  AFT OF ACCESS BULKHEAD SECOND UPPER  BOLT WASHER NUT (4 LOCATIONS)  RETAINER (2 LOCATIONS) 
DOOR  DOOR  RETAINER 
(2 LOCATIONS) 
BRACKET 
(4 LOCATIONS)  BALLSCREW 
SUPPORT 
FRONT 
LATERAL 
FRAME 
I-FRAME TURNBUCKLE 
ASSEMBLY 

TOP END STOP MID-LENGTH
BALLSCREW PIN
SUPPORT
TRUNNION STABILIZER
BALLSCREW LUGS
AA
UPPER GIMBAL A-A
RETAINER
(2 LOCATIONS) BALLSCREW SUPPORT
STABILIZER SAFETY
WING BOX SHAFT
BOLT WASHER NUTSTABILIZER (2 LOCATIONS)BALLSCREW
ACTUATOR
ANTIROTATION
CABLES
BB
FWD BOLT BOLT
WASHER WASHER
NUT NUT
(4 LOCATIONS) (2 LOCATIONS)
LOWER GIMBAL B-B
Stabilizer Trim Ballscrew Actuator Installation Figure 402 (Sheet 2)
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757
MAINTENANCE MANUAL

STABILIZER BALLSCREW ACTUATOR
A

1  THE GAGE ASSEMBLY CAN BE USED TO ACCURATELY SET THE STABILIZER DIMENSION B TO 19.07 |0.01 INCHES (484.38 |0.25 mm).
TO USE, PUT THE GAGE ASSEMBLY AGAINST THE
BALLSCREW SUCH THAT THE LOWER BOLTHEAD IS
ON THE SHOULDER OF THE LOWER STOP. MAKE
SURE THAT THE FEELER BLADE CANNOT BE PUT
BETWEEN THE GAGE ASSEMBLY UPPER BOLTHEAD
AND THE SHOULDER OF THE UPPER STOP. MAKE
SURE THE SHOULDER OF THE UPPER STOP DOES
NOT TOUCH THE UPPER BOLTHEAD.

Measurement of Stabilizer Dimension B
Figure 403

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