THE AUTOPILOT-SERVO MODULE CONTROL RODS OF 
1. UPPER SUPPORT STRUCTURE 
A 
SEE  A  A  2.  BEARING ARM UNIT CRANK AND FEEL 
10. 9. UPPER QUADRANT LOWER QUADRANT  CONTROL ROD QUADRANT AFT4. 3. FEEL UNIT 
8. CONTROL ROD 
CRANK 7. CONTROL  B  LOWER SUPPORT 5. STRUCTURE 
13. BOLT  FWD  B  ARM 6. BEARING 
A  PIN E-2 RIG 
16. BOLT 
12. OUTER BOLT NUT  INNER BOLT NUT11. 
A-A  15. OUTER BOLT NUT  INNER BOLT NUT14. 
B-B 
Elevator Aft Quadrant Installation Figure 402 

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 27-31-06
 ALL  ú ú 01 Page 404 ú Oct 10/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 S 024-013
 (5)  
Remove the elevator aft quadrant (4):

 (a)  
Disconnect the control rods (8) from the control crank (7).

 (b)  
Disconnect the input control rods of the elevator autopilot servo module from the elevator aft quadrant (4).

 (c)  
Disconnect the feel unit control rod (3) from the bearing arm and feel unit crank (2) .

 (d)  
Remove the bolt (16) that connects the bearing arm (6) to the lower support structure (5).

 (e)  
Remove the bolt (13) that connects the bearing arm and feel unit crank (2) to the upper support structure (1).

 (f)  
Move and lift the aft quadrant (4) until it is clear of the structure.

 TASK 27-31-06-404-014
 3. Elevator Aft Quadrant Installation (Fig. 401)
__________________________________
 A. Special Tools and Equipment
 (1)  
2ME65B80926 Holding Tool, Cable Rigging Rudder and Elevator Tension Regulator

 (2)  
G12001-50 Rig Pin Kit

 B.
Consumable Materials

 (1)  
D00013 Grease - MIL-G-23827

 (2)  
C00308 Corrosion Preventive Compound - MIL-C-11796 Class 3 (preferred).

 (3)  
C00174 Corrosion Preventive Compound - MIL-C-16173 Grade 2 (optional)

 C.
References

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

 (2)  
22-12-01/401, Elevator Autopilot Servo Modules

 (3)  
24-22-00/201, Manual Control

 (4)  
27-31-00/501, Elevator Feel Unit

 (5)  
29-11-00/201, Main Hydraulic Supply System

 (6)  
IPC 27-31-06 Fig. 1

 D.
Access

 (1)  
Location Zone 315 Area Aft of Stabilizer Box Compartment, LH 316 Area Aft of Stabilizer Box Compartment, RH

 (2)  
Access Panel
 315A Access Door

 E.
Install the Elevator Aft Quadrant

 S 424-015
 (1)  
Install the elevator aft quadrant (4):

 (a)  
Align the lower end of the aft quadrant (4) to the lower support structure (5).

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 ALL  ú ú 01 Page 405 ú Jun 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (b) Install the bolt (16), the washers and the nuts (14, 15).
 NOTE: Do not tighten the nuts (14, 15).
____
 (c)  
Align the upper end of the aft quadrant (4) to the upper support structure (1).

 (d)  
Install the bolt (13), the washers, and the nuts (11 and 12): 1) Tighten the outer nut (12) to 60-80 pound-inches. 2) Tighten the inner nut (11) to 30-40 pound-inches.

 NOTE: Do not try to set the outer nut (12) again.
____
 (e)  
Tighten the outer nut (15) 60-80 pound-inches.

 (f)  
Tighten the inner nut (14) 30-40 pound-inches.

 NOTE: Do not try to set the outer nut (15) again.
____
　
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