(a)  
The installation of the actuator

 (b)  
The installation of the electrical connector

 (c)  
The adjustment of the actuator

 (d)  
The installation of the ceiling panel.

 TASK 27-62-07-004-001
 2.  Automatic Speed Brake Actuator Removal (Fig. 401)______________________________________
 A.  References
 (1)  
AMM 25-59-01/401, Main Deck Compartment Cargo Lining Panel

 (2)  
AIPC 27-62-03, Fig. 1

 B.  
Access

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

 C.  
Procedure

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

 S 864-003

 (2)
Open the following circuit breaker and attach a DO-NOT-CLOSE tag:

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

 S 864-002
 S 014-022
 (3)  Remove the third center ceiling panel forward of the main entry door No. 1: (AMM 25-59-01/401).
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A
747-400 MAINTENANCE MANUAL
 S 034-005
 (4)
Disconnect the electrical connector DX432 from the actuator.

 S 024-019

 (5)  
Remove the actuator (Fig. 401):

 (a)  
Remove the bolt (5), bushing (6), washer (7), and nut (8) to disconnect the actuator (4) from the idler assembly.

 NOTE: Make sure the piston on the actuator is fully retracted.
____
 (b)  
Remove the bolt (1), washer (2), and nut (3) to disconnect the actuator from the support bracket.

 (c)  
Remove the actuator.

 TASK 27-62-07-404-008
 3. Automatic Speed Brake Actuator Installation
___________________________________________
 A. Parts
 ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Bolt | 27-62-03 | 01 | 165 | | | 2 | Washer | | | 190 | | | 3 | Nut | | | 200 | | | 4 | Actuator Assy - Linear (Auto Speed| | | 225 | | | | Brake Actuator) | | | | | | 5 | Bolt | | | 160 | | | 6 | Bushing | | | 180 | | | 7 | Washer | | | 190 | | | 8 | Nut | | | 200 | 2......…........…...................................…..........….....….........1
 B. References
 (1)  AMM 24-22-00/201, Manual Control
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A
747-400
MAINTENANCE MANUAL

SEE A
MANUAL
FLIGHT COMPARTMENT
CONTROL ROD
IDLER ASSEMBLY
SEE B ACTUATOR PISTON ROD END
ACTUATOR
DRUM  5. BOLT 4. AUTOMATIC
CONTROL
MECHANISM  6. BUSHING SPEED BRAKE
ROD
7.
 WASHER ACTUATOR

8.
 NUT

MANUAL
A
CONTROL ROD  MANUAL
ACTUATOR CONTROL RODCONTROL ROD
ACTUATOR CONTROL ROD
AA
SEE A-A FOR
CLEARANCE

ACTUATOR
B
INPUT 0.030-0.060 INCH
CASTING (0.76-1.52 mm) CLEARANCE
A-A
Automatic Speed Brake Actuator Installation
Figure 401

1.
 BOLT

2.
 WASHER

3.
 NUT

SUPPORT BRACKET
MANUAL INPUT CASTING
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