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时间:2011-04-10 10:01来源:蓝天飞行翻译 作者:航空
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 (4)
AIPC 27-41-05, Fig. 1

 (5)
AIPC 27-41-14, Fig. 2


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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400
MAINTENANCE MANUAL

BALL STOP SCREW  SEE  A 
STOP NUT BALL  HORIZONTAL STABILIZER MECHANISM TRIM DRIVE 
STOP BALLSCREW 
B BALLNUT STOP 
UPPER GIMBAL 

A
Stabilizer Position Setting Figure 201
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400
MAINTENANCE MANUAL

SEE A
STABILIZER CENTER SECTION SEE B
STABILIZER (TOP SURFACE) ACCESS
SLIDING BLADE SEAL (HIGHER)
FWD 

SLIDING 
BLADE SEAL 
(LOWER)  CENTER SECTION STABILIZER 
HINGE FITTING  DRIVE FITTING  MAST  (BOTTOM SURFACE) 
HINGE FITTING 

SHIMS
YOKE BONDING JUMPER
LOWER SEAL DOOR
(EXTENDED) BELL WASHER (2 LOCATIONS)
SPURFWD MAST-TO-CRANK
CRANK-TO-DOOR LINK ROD
LINK ROD
CRANK
B
____THE RIGHT SIDE IS SHOWN; THE LEFT SIDE
NOTE: IS OPPOSITE. STABILIZER SHOWN WITH THE LEADING EDGE IN ZERO DEGREE POSITION. MAKE SURE YOU INSTALL THE CRANK WITH THE SPUR POINTED AS SHOWN.
Horizontal Stabilizer Body Seal Door and Seal Door Mechanism Installation Figure 202
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (6)  
AIPC 27-41-14, Fig. 3

 D.
Access

 (1)  
Location Zone
 313 Stabilizer Torsion Box Compartment, LH
 314 Stabilizer Torsion Box Compartment, RH


 (2)  
Access Panel
 312A Horizontal Stabilizer Jackscrew Access Door
 315A Access Door


 E.
Prepare for Removal


 S 012-002
 (1)  
Open the access doors 312A and 315A (AMM 06-09-05/201).

 S 492-003

 (2)  
Attach the safety device to the receptacle on the top surface of the horizontal stabilizer.

 S 862-004

 (3)  
Do this task: "Supply Electrical Power" (AMM 24-22-00/201).

 S 862-005

 (4)  
Do this task: "Supply Hydraulic Power" (AMM 29-11-00/201).

 S 862-006

 (5)
Set the STAB TRIM 2 and 3 switches on the control stand to ON.

 S 862-007

 (6)  
Use the STAB TRIM ALTN switches to set the stabilizer to the neutral rig position (3 units of trim).

 S 862-008

 (7)  
Set the STAB TRIM 2 and 3 switches to CUTOUT.

 S 862-009

 (8)  
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
P7, Overhead Circuit Breaker Panel
 1) 7E7, STAB TRIM L S/O VLV
 2) 7E20, STAB TRIM R S/O VLV

 

 S 862-071
 (9)  
If the hydraulic power is not necessary, do this task: "Remove Hydraulic Power" (AMM 29-11-00/201).

 S 862-010

 (10)
 If the electrical power is not necessary, do this task:  "Remove Electrical Power" (AMM 24-22-00/201).


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