757 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 4(5)

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A
757
MAINTENANCE MANUAL

SEE A
MECHANICAL TRAVEL LIMIT SLA SEE C
SEE B SLB
STABILIZER TRIM
STANDBY TRIM SYSTEM SLBPOSITION SLA
INDICATOR (EXAMPLE)
STAB TRIM STAB TRIM TURNBUCKLE
"CONTROL" "ARM" LEVER (EXAMPLE)

"ARM"
LEVER
CABLES SLA
SP1B SLB SP1A
STABILIZER
ST2A
TRIM SHUTOFF
ST2B
SWITCHES HORIZONTAL
ST1A
STABILIZER
ST1B
SP2A SLA
A
SP2B
SECONDARY BRAKE LIMIT SW
STABILIZER (EXAMPLE)
AND POSITION
TRIM CONTROL A
"CONTROL"  TRANSMITTER
MODULE MODULE
CABLES  FWD DRIVE HYDRAULIC(EXAMPLE) (EXAMPLE)MOTOR (EXAMPLE)
LIMIT SWITCH AND POSITION TRANSMITTER MODULES A
LIMIT SWITCH AND
POSITION TRANSMITTER
MODULES (3 LOCATIONS)

RIG PINRIG PIN
RIG PIN
E/ST-3 HOLE

E/ST-4 HOLE E/ST-5 HOLE
(VIEW IN THE FORWARD DIRECTION)
A-A

Horizontal Stabilizer Trim Control System Adjustments
Figure 502 (Sheet 1)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH STAB TRIM LEVERS ú

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A
757
MAINTENANCE MANUAL

LIMIT SWITCH
AND POSITION
TRANSMITTER
MODULES

SEE A
SP3A
SP3B
TURNBUCKLESP1A (EXAMPLE)SP1B
STABILIZER HORIZONTAL
BALLSCREW STABILIZER
ACTUATOR
SECONDARY

SEE B BRAKE SP2A
(EXAMPLE) SP2B
A
FWD
LIMIT SWITCH AND POSITION
STABILIZER TRIM TRANSMITTER
A
MODULE (EXAMPLE) (EXAMPLE) CONTROL MODULE
DRIVE HYDRAULIC MOTOR (EXAMPLE)
LIMIT SWITCH AND POSITION TRANSMITTER MODULES A
LIMIT SWITCH AND POSITION TRANSMITTER MODULES (3 LOCATIONS)
RIG PIN
RIG PIN HOLE E/ST3 RIG PIN HOLE E/ST5HOLE E/ST4
(VIEW IN THE FORWARD DIRECTION)
A-A

Horizontal Stabilizer Trim Control System Adjustments
Figure 502 (Sheet 2)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH ALTERNATE STAB TRIM ú

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A

757
MAINTENANCE MANUAL

STCM LEVER  ST2B 
(4 LOCATIONS)  ST1A  SLA  ST2A 
SEE  D  CONTROL ROD  SLB 
(EXAMPLE) 
ST1B 

STABILIZER-TRIM CONTROL RIG PIN
RIG PIN MODULE (STCM) (2 LOCATIONS) HOLE E/ST2 HOLE E/ST1
STABILIZER TRIM CONTROL MODULES (STCMs) AND STABILIZER TRIM CONTROL CABLES PUSHROD
B2 JACKSCREW SERVO LEVERSTOP
UPPER GIMBAL PLATE
FEELER
INDEX MARK
BLADE
INDEX MARK
UPPER STOP
1
(STAYS WITH
UPPER GIMBAL)

BALLSCREW
RIGGING-EQUIPMENT
LOWER STOP
STCM LEVER
DIMENSION
GAGE-ASSEMBLY
(TURNS WITH
B
(B27039-2)
BALLSCREW)
D2 1
1  GAGE ASSEMBLY CAN BE USED TO ACCURATELY SET STABILIZER DIMENSION B TO 19.07 |0.01 INCHES (484.38 |0.25 mm).
1 TO USE, PUT THE GAGE-ASSEMBLY AGAINST THE BALLSCREW SUCH THAT THE LOWER BOLT HEAD IS ON THE SHOULDER OF THE LOWER
FWD STOP. MAKE SURE THAT THE FEELER BLADE
CANNOT BE PUT BETWEEN THE GAGE-ASSEMBLY STABILIZER UPPER BOLT HEAD AND THE SHOULDER OF THE BALLSCREW UPPER STOP. MAKE SURE THE SHOULDER OF ACTUATOR THE UPPER STOP DOES NOT TOUCH THE UPPER
STABILIZER BALLSCREW ACTUATOR
BOLT HEAD.
C  2 AIRPLANES WITH STAB TRIM LEVERS
Horizontal Stabilizer Trim Control System Adjustment
Figure 502 (Sheet 3)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-41-00
　
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