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A

747-400
MAINTENANCE MANUAL

SPREADER BAR
JACK ASSEMBLY (2 LOCATIONS)
BALL NUT LOCK
HORIZONTAL STABILIZER JACKSCREW ACCESS DOOR, 312A FWD
HANDLING TOOL USAGE

Stabilizer Trim Drive Mechanism Wear Limits
Figure 601 (Sheet 5)

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MAINTENANCE MANUAL

A A  SEE  A  NOTE:____ STA 2436 BAR SPREADER PITOT AND STATIC POINTS FOR DISCONNECTION  SEE B PITOT AND STATIC LINES MAY NEED TO BE REMOVED TO INSTALL SPREADER BAR. 
(2 LOCATIONS) JACK ASSEMBLY 
SEE  C 

BULKHEAD (STA 2460)
FWD JACKSCREW ACCESS DOOR, 312A HORIZONTAL STABILIZER
A
Stabilizer Trim Drive Mechanism Wear Limits
(Jack Assembly Installation)
Figure 602 (Sheet 1)

M04343
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747-400
MAINTENANCE MANUAL

Stabilizer Trim Drive Mechanism Wear Limits
(Jack Assembly Installation)
Figure 602 (Sheet 2)

M04348
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MAINTENANCE MANUAL

HORIZONTAL STABILIZER 
CENTER SECTION 
BULKHEAD 
TRUSS 
JACK 
ASSEMBLY 
SEE  D 

INDICATOR 
ASSEMBLY 
FWD 
HYDRAULIC 
PUMP ASSEMBLY 
SEE  D 
A-A 

JACK ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
D

Stabilizer Trim Drive Mechanism Wear Limits
(Jack Assembly Installation)
Figure 602 (Sheet 3)

M04353
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747-400 MAINTENANCE MANUAL
 TASK 27-41-06-206-015
 4.  Stabilizer Trim Drive Mechanism Visual Inspection_________________________________________________
 A. Standard Tools and Equipment
 (1)  
A Flash Light

 B.
References

 (1)  
AMM 06-09-05/201, Body Section 48 Access Doors and Panels

 (2)  
AMM 24-22-00/201, Manual Control

 (3)  
AMM 27-41-06/401, Stabilizer Trim Drive Mechanism

 (4)  
AMM 29-11-00/201, Main Hydraulic Supply System

 C.
Access

 (1)  
Location Zone
 311 Area Aft of Pressure Bulkhead, LH
 312 Area Aft of Pressure Bulkhead, RH

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

 D.
Procedure

 S 866-016
 (1)  
Remove the hydraulic power for hydraulic systems No. 2 and No. 3 (AMM 29-11-00/201).

 S 866-017

 (2)  
　
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