0.006

(0.152)
0.007
11
(0.177)
12
0.006
(0.152)
0.007
13
(0.177)

REPLACE WHEN THE RADIAL CLEARANCE BETWEEN THE RACES IS MORE THAN 0.005 INCH (0.127 mm).

APPLY HARD CHROME PLATE TO THE MAXIMUM THICKNESS OF 0.005 INCH (0.127 mm) PER QQ-C-320 AND GRIND
TO DESIGN THE LIMIT.
THE REPLACEMENT BUSHING CAN HAVE AN OVERSIZE OD TO +0.03 INCH (+0.762 mm).
REPLACE WHEN THE RADIAL CLEARANCE BETWEEN THE RACES IS MORE THAN 0.006 INCH (0.152 mm).

Ground Spoiler Wear Limits
Figure 601 (Sheet 4)

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 27-62-01
 ALL  ú
 ú  01  Page 605
 ú  Jun 18/01 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 SPEED BRAKE CONTROL LEVER - REMOVAL/INSTALLATION
________________________________________________
 1.  General
_______
 A.  There are two tasks in this procedure. There is a task for the removal and a task for the installation of the speed brake control lever.
 TASK 27-62-02-004-001
 2.  Speed Brake Control Lever Removal (Fig. 401)
_________________________________
 A.  References
 (1)  
IPC 27-62-40 Fig. 1

 B.  
Access

 (1)  
Location Zone
 221 Control Cabin

 C.  
Procedure

 S 864-017
 WARNING: MAKE SURE TO OPEN THE CIRCUIT BREAKERS FOR THE CAPTAIN'S AND
_______ THE FIRST OFFICER'S SEATS BEFORE YOU DO WORK AROUND THEM. A FAILURE TO OPEN THE CIRCUIT BREAKERS CAN CAUSE THE SEATS TO MOVE ACCIDENTALLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
P414 Power Distribution Center - Left 1) 414D8 CAPT PWR SEAT

 (b)  
P415 Power Distribution Center - Right 1) 415H32 F/O POWER SEAT

 S 014-002
 (2)  
Remove the lightplate at the speed brake lever.

 S 014-003

 (3)  
Remove the screws that attach the coverplate.

 NOTE: It is not necessary to disconnect the electrical connector
____
 from the coverplate.

 S 014-004
 (4)  
Remove the left side panel from the control stand.

 S 024-005

 (5)  
Remove the speed brake lever:

 (a)  
Remove the bolt, washer, and nut to disconnect the control rod from the speed brake lever.

 (b)  
Remove the cotter pin from the retainer.

 (c)  
Remove the bolt and washer that attach the retainer to the shaft.

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 27-62-02
 ALL  ú ú 03 Page 401 ú Oct 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
SPEED BRAKE 
CONTROL LEVER 
SCREW AND WASHER  A  BOLT, WASHER, 
FOR SHAFT  AND NUT FOR 
(3 LOCATIONS)  CONTROL ROD 
CONTROL ROD 
A  (SHOWN FOR REFERENCE) 

COVERPLATE
CONTROL STAND
COTTER PIN
RETAINER
BOLT AND WASHER FOR RETAINER
LEFT SIDE FRAME CONTROL STAND
CONTROL STAND
LEFT SIDE FRAME INNER FRAMELEFT CONTROL STAND SIDE PANEL
COTTER PIN SPEED BRAKE CONTROL LEVER
BOLT AND WASHER FOR RETAINER SPACER
SHAFT RETAINER
SCREW AND WASHER
OUTBOARD FOR SHAFT
BEARING (3 LOCATIONS)
BOLT, WASHER, AND NUT FOR CONTROL ROD
CONTROL ROD
(LEVER SHOWN INSTALLED) A-A Speed Brake Control Lever Installation Figure 401
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 ALL  ú ú 01 Page 402 ú Jun 10/91
　
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