B.  
References

 (1)  
AMM 25-59-01/401, Main Deck Compartment Cargo Lining Panel

 (2)  
AIPC 27-62-09, Fig. 1

 C.  
Access

 (1)  
Location Zone 211, 212 Passenger Cabin - Nose to First Door

 D.  
Procedure

 (1)  
Put the speed brake lever in the DOWN position.

 S 864-003

 (2)
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
P7, Overhead Circuit Breaker Panel
 1) 7G7, SPEED BRAKE FLT DETENT

 S 864-002
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747-400 MAINTENANCE MANUAL
 S 014-023
 (3)  
Remove the third center ceiling panel forward of the main entry door No. 1: (AMM 25-59-01/401).

 S 024-004

 (4)  
Remove the control lever lock:

 (a)  
Disconnect the electrical wire from the solenoid.

 (b)  
Remove the pin that attaches the link on the solenoid to the lever crank.

 (c)  
Use the internal hex wrench to remove the retaining nut from the stop lever.

 (d)  
Remove the stop lever crank.

 (e)  
Remove the booster spring from the stop lever: 1) Remove the screw and spacer that attach the lower end of

 the spring. 2) Disconnect the spring from the stop lever.

 (f)  
Remove the bearing housings, spacer and stop lever.

 (g)  
Remove the bolts and remove the solenoid from the mounting bracket.

 TASK 27-62-08-404-005
 3.  Speed Brake Control Lever Lock Installation (Fig. 401)___________________________________________
 A. Special Tools and Equipment
 (1)  
ST2603-4 Internal Hex Wrench

 B.
Consumable Materials

 (1)  
A00344 Compound - Soft Filmed (corrosion preventive), MIL-C-11796, Class 3

 C.
References

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

 (2)  
AMM 25-59-01/401, Main Deck Compartment Cargo Lining Panel

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

 (4)  
AIPC 27-62-09, Fig. 1

 D.
Access

 (1)  
Location Zone 211, 212 Passenger Cabin - Nose to First Door

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747-400
MAINTENANCE MANUAL

SEEA
SPACER BOOSTER SPRING
SCREW
SPACER
BEARING HOUSING (2 LOCATIONS)
STOP LEVER RETAINING NUT
STOP LEVER CRANK LINK PIN
FWD
INBD  MOUNTING
BRACKET

SOLENOID
A
Speed Brake Control Lever Lock Installation
Figure 401

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747-400 MAINTENANCE MANUAL
 E.  Procedure
 S 424-007
 (1)  
Install the control lever lock:

 (a)  
Install the solenoid on the mounting bracket with the bolts.

 (b)  
Put the stop lever in its position in the mounting bracket.

 (c)  
Install the spacer and the bearing housing.

 (d)  
Apply the corrosion preventive compound to the splines on the stop lever and the retaining nut.

 (e)  
Install the stop lever crank on the stop lever.

 (f)  
Use the internal hex wrench to install the retaining nut on the stop lever crank.
　
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