747-400
MAINTENANCE MANUAL

SEE  A 
SPEED BRAKE CABLE QUADRANT 1  QUADRANT STOP  SB-1 (REF) RIG PIN 
SPEED BRAKE SEQUENCE MECHANISM 
GROUND SPOILER CONTROL VALVE (EXAMPLE) 
1  BRAKE POSITION THE QUADRANT IS SHOWN IN THE "FLIGHT" SPEED Speed Brake Quadrant Stop Location Figure 505 A 

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A
747-400
MAINTENANCE MANUAL

 (e)  
Adjust the rod assemblies on spoilers No. 1, 3 and 4 until the adjacent trailing edge corners align in the limit of 0.13 inch.(3.30mm)

 (f)  
Turn the aileron control wheel 30-degrees clockwise.

 NOTE: Do not turn the control wheel through the 30-degree
____ position. If you go through the 30-degree position, turn the control wheel again from the 25-degree position.
 (g)  
Open the applicable trailing edge panel and extend the flaps, or lift the spoilers to get access to the spoiler control package. 1) If you lifted the spoilers, install the spoiler actuator

 locking tools or do this task: "Remove Hydraulic Power" (AMM 29-11-00/201).

 (h)  
Adjust the input arm on spoiler No. 11 until it is up 9.00 +0.00/-0.50 degrees (6.31 +0.00/-0.35 inches (160.27+0.00/-8.89mm) plus the actual clearance between the spoiler and the flap).

 (i)  
Adjust the rod assemblies on spoilers No. 9, 10 and 12 until the adjacent trailing edge corners align in the limit of 0.13 inch.(3.302mm)

 (j)  
Tighten the checknuts on the rod assemblies.

 J.
Put the Airplane Back to Its Usual Condition

 S 865-088
 (1)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  
P7 Overhead Circuit Breaker Panel
 1) 7G6 SPEED BRAKE AUTO CONT

 S 085-089
 (2)  
Remove the control wheel protractor and adapter from the captain's aileron control wheel.

 (3)  
Do this task: "Remove Hydraulic Power" (AMM 29-11-00/201).

 (4)  
Do this task: "Remove Electrical Power" (AMM 24-22-00/201).

 S 865-091
 S 865-092
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
 S 095-090
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO REMOVE THE
_______ DOOR LOCKS ON THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT REMOVE THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (5)  Do this task: "Wing Landing Gear Door Lock Removal" (AMM 32-00-30/201).
 TASK 27-61-00-705-093
 4.  System Test - Spoiler Control System____________________________________
 A. Special Tools and Equipment
 (1)  
4MIT65B80307-1, Protractor (preferred)

 (2)  
F52485-500, Protractor (optional to 4MIT65B80307-1)

 (3)  
3MIT65B80307-1, Control Wheel Adapter

 (4)  
MIT65B04001-41, Control Wheel Straightedge

 B.
References

 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 29-11-00/201, Main Hydraulic Control System

 (3)  
AMM 32-09-02/201, Air/Ground Relay System

 C.
Access

 (1)  
Location Zone
 221 Control Cabin

 D.
Prepare for the Spoiler Control System Test

 S 865-094
 (1)
Do this task: "Supply Electrical Power" (AMM 24-22-00/201).

 (2)
Do this task: "Supply Hydraulic Power" (AMM 29-11-00/201).

 S 865-096

 (3)  
Make sure these circuit breakers are closed:

 (a)  
　
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