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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500
MAINTENANCE MANUAL

HYDRAULIC  A 
SUPPORT  LINES 
BRACKET  A 
SEE  A  BLOCKING 
VALVE 

SUPPORT
FITTING

LEADING EDGE
FLAP ACTUATOR

B
B
LEADING EDGE FLAP FWD
A
BOLT
BOLT
BUSHING BUSHING
BUSHING
1
BOLTBUSHING BUSHING BUSHING
OUTBOARD/INBOARD OUTBOARD FLAP ACTUATOR INBOARD FLAP ACTUATORFLAP ACTUATOR
B-B  B-BA-A
INSTALL THE BOLT WITH 2 BEJ 061, 062; THE HEAD INBOARD
INSTALL THE BOLT WITH THE HEAD INBOARD ON LE FLAP NO. 2 AND 3.
BEJ 063-999;
INSTALL THE BOLT WITH THE HEAD INBOARD ON LE FLAP NO. 2 AND
OUTBOARD ON LE FLAP NO. 3.

Leading Edge Flap Actuator Installation Figure 401
F43119
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 434-004
 (5)  
Remove the bolt that attaches the actuator to the leading edge flap.

 S 864-005

 (6)  
Move the flap control lever to the FLAP UP detent to retract the actuator.

 S 864-006

 (7)  
Do this task to depressurize hydraulic system B and standby system: "Leading Edge Flaps and Slats Hydraulic Systems A, B and Standby Depressurization" (Ref 27-81-00/201).

 S 864-007

 (8)  
Do this task to depressurize hydraulic system B reservoir: "Hydraulic Reservoir Depressurization" (Ref 29-09-00/201).

 E.
Remove the Leading Edge Flap Actuator

 S 024-008
 (1)  
Remove the actuator:

 (a)  
Remove the lockwire.

 (b)  
Disconnect the hydraulic lines from the support bracket.

 (c)  
Install the plugs in the hydraulic lines.

 (d)  
Seal all the ports with caps.

 (e)  
Remove the bolt that attaches the actuator to the support fitting.

 (f)  
Remove the actuator.

 S 034-023
 (2)  
Disconnect the hydraulic lines from the actuator.

 S 434-024

 (3)  
Install the plugs in the hydraulic lines.

 S 434-025

 (4)  
Seal all the ports with caps.

 TASK 27-81-31-404-035
 3. Leading Edge Flap Actuator Installation (Fig. 401)
_______________________________________
 A. Special Tools and Equipment
 (1)  
F80048-84, -89 or -90 - Leading Edge Flap Actuator Lock

 B.
References

 (1)  
27-81-31/601, Leading Edge Flap Actuator

 (2)  
27-81-00/201, Leading Edge Flap and Slat Control System

 (3)  
24-22-00/201, Manual Control

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 C. Access
 (1)  
Location Zone
 101 Control Cabin, LH
 102 Control Cabin, RH
 303 Wing Inboard Leading Edge with Slats, LH
 403 Wing Inboard Leading Edge with Slats, RH

 D.
Install the Leading Edge Flap Actuator

 S 224-009
 (1)  
Do this task if you install used bearings, bushings, or bolts: "Leading Edge Flap Actuator Inspection/Check" (Ref 27-81-31/601).

 S 284-010

 (2)  
Make sure that the length of the replacement actuator is

 14.890 inches.
 S 424-011
 (3)  
Install the actuator:

 (a)  
Remove the plugs and caps.

 (b)  
Connect the hydraulic lines to the actuator.

 (c)  
　
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