27-81-14
 ALL  ú ú 01 Page 203 ú Nov 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
SEAL DOOR STOP

Krueger Flap to Nacelle and Strut Seal Door Installation
Figure 201 (Sheet 3)

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 27-81-14
 ALL  ú ú 01 Page 204 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 022-005
 (5)  
Remove the seal door (Fig. 201):

 (a)  
Remove the cam roller.

 (b)  
Disconnect the link assembly from the seal door assembly (Detail B).

 NOTE:____There is tension on the spring. Hold the link assembly while you remove the fasteners.

 (c)  
Remove the six bolts that connect the seal door assembly to the hinge assembly.

 TASK 27-81-14-402-006
 3.  Seal Door Installation______________________
 A. Special Tools and Equipment
 (1)  
F80048-84, -89 or -90 - Leading Edge Flap Actuator Lock

 B.
References

 (1)  
27-81-00/201, Leading Edge Flap and Slat Control System

 C.
Access

 (1)  
Location Zone 101 control Cabin, LH 102 Control Cabin, RH 302 Wing Outboard Leading Edge with Slats, LH 303 Wing Inboard Leading Edge with Slats, LH 402 Wing Outboard Leading Edge with Slats, RH 403 Wing Inboard Leading Edge with Slats, RH

 D.
Procedure

 S 422-007
 (1)  
Install the seal door (Fig. 201):

 (a)  
Connect the seal door assembly to the hinge assembly with six bolts.

 NOTE:____There is tension on the spring. Hold the link assembly while you install the fasteners.

 (b)  
Tighten the bolt to 50-75 pound-inches.

 (c)  
Manually put the seal door aft of the Krueger flap.

 (d)  
Install the cam roller on the seal door.

 (e)  
Tighten the bolt to 60-85 pound-inches.

 (2)  
Manually retract the seal door to the fixed leading edge structure.

 S 862-009
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 27-81-14
 ALL  ú ú 01 Page 205 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 082-051
 WARNING:_______CAREFULLY REMOVE THE LEADING EDGE FLAP ACTUATOR LOCKS. THE LEADING EDGE FLAPS CAN MOVE QUICKLY IF YOU DO NOT REMOVE THE LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (3)  
Remove the leading edge flap actuator locks from the actuators of the leading edge flaps (Ref 27-81-00/201).

 S 862-010

 (4)  
Pressurize hydraulic system B (Ref 27-81-00/201).

 S 862-054

 (5)  
Move the flap control lever to the FLAP UP detent.

 S 862-013

 (6)
Release the pressure from hydraulic system B (Ref 27-81-00/201).

 S 822-008

 (7)  
Adjust the seal door.

 TASK 27-81-14-002-014
 4.  Seal Door Spring Removal________________________
 A. Special Tools and Equipment
 (1)  
F80048-84, -89, -90 - Leading Edge Flap Actuator Lock

 B.
Standard Tools and Equipment

 (1)  
Steel pin - 1/4 inch diameter x 1-1/2 inch

 C.
References

 (1)  
27-81-00/201, Leading Edge Flap and Slat Control System

 D.
Access

 (1)  
Location Zone 101 Control Cabin, LH 102 Control Cabin, RH 302 Wing Outboard Leading Edge with Slats, LH 303 Wing Inboard Leading Edge with Slats, LH 402 Wing Outboard Leading Edge with Slats, RH 403 Wing Inboard Leading Edge with Slats, RH

 E.
Procedure

 (1)  
Pressurize hydraulic system B (Ref 27-81-00/201).

 S 862-017
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