27-83-21
 ALL  ú ú 01 Page 404 ú Nov 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 
737-300/400/500MAINTENANCE MANUAL
 S 864-030
 (2)  Move the flap control lever to the 10-unit position.
 (a) Make sure that the leading edge slats move to the fully
 extended position.
 S 794-019
 (3)  Make sure that there are no leaks at the hydraulic fittings at the
 autoslat control valve.
 S 864-031
 (4)  Move the flap control lever to the 5-unit position.
 (a) Make sure that the leading edge slats move to the intermediate
 extend position.
 S 714-020
 (5)  Push and hold the H LEG and C LEG TEST buttons on the No. 1 autoslat
 computer.
 (a) Push and hold the main gear GROUND SENSING test switch on the
 E-11 landing gear logic shelf.
 (b) Make sure that the AUTO EXT light on the No. 1 autoslat
 computer comes on.
 (c) Make sure that the leading edge slats move to the fully
 extended position.
 (d) Release the H LEG and C LEG TEST buttons.
 (e) Make sure that the AUTO EXT light goes off.
 (f) Make sure that the leading edge slats move to the intermediate
 extend position.
 (g) Release the GROUND SENSING test switch.
 S 714-028
 (6)  Push and hold the H LEG and C LEG TEST buttons on the No. 2 autoslat
 computer.
 (a) Push and hold the main gear GROUND SENSING test switch on the
 E-11 landing gear logic shelf.
 (b) Make sure that the AUTO EXT light on the No. 2 autoslat
 computer comes on.
 (c) Make sure that the leading edge slats move to the fully
 extended position.
 (d) Release the H LEG and C LEG TEST buttons.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-83-21
 ALL  ú ú 01 Page 405 ú Nov 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 (e)  
Make sure that the AUTO EXT light goes off.

 (f)  
Make sure that the leading edge slats move to the intermediate extend position.

 (g)  
Release the GROUND SENSING test switch.

 E.
Airplane to Its Initial Condition

 S 864-022
 (1)  
Move the flap control lever to the UP position.

 S 864-021

 (2)
Remove the pressure in hydraulic system B (AMM 27-81-00/201).

 S 864-023

 (3)  
Close these circuit breakers:

 (a)  
P6 Panel
 1) PTU CONTROL VALVE
 2) STBY HDY PUMP ALT
 3) STBY HYD PUMP NORMAL

 (4)  
Remove electrical power (AMM 24-22-00/201).

 S 864-024
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-83-21
 ALL  ú ú 01 Page 406 ú Nov 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 AUTOSLAT CONTROL VALVE SOLENOID - REMOVAL/INSTALLATION
______________________________________________________
 1.  General_______
 A.  This procedure contains two tasks, one for the removal and one for the installation of the autoslat control valve solenoid.
 B.  The autoslat control valve is located at the aft end of the right ram air duct bay. You can access it through the right underwing fairing access panel.
 TASK 27-83-31-004-001
 2.  Autoslat Control Valve Solenoid Removal (Fig. 401)_______________________________________
 A.  References
 (1)
AMM 27-81-00/201, Leading Edge Flap and Slat Control System

 B.  
Access

 (1)  
Location Zone
 213 Right Ram Air Duct

 C.  
Procedure

 S 864-008
 (1)
Release the pressure in the hydraulic systems (AMM 27-81-00/201).

 S 034-002