panel) comes on. 2) Make sure that the LE FLAPS TRANSIT light goes off.

 (d)  
Release the NOSE SENSING and AIR SENSING test switches. 1) Make sure that the AUTO EXT light on ASC 2 goes off. 2) Make sure that the LE slats retract to the (intermediate)

 extend position.

 (e)  
Push the master caution RECALL button.
 1) Make sure that the AUTOSLAT FAIL light comes on.

 (f)  
Push the master caution RESET button.
 1) Make sure that the AUTOSLAT FAIL light goes off.

 (g)  
Close this circuit breaker:

 1)  P6 Panel
 a) AUTOSLAT NO. 1 DC

 S 865-024
 (15)
 Remove the DO-NOT-CLOSE tags and close these circuit breakers:

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

 (b)  
P18 Panel
 1) LEFT ALPHA VANE HEATER
 2) RIGHT ALPHA VANE HEATER

 (16)
 Release the pressure in hydraulic system B (Ref 27-81-00/201).

 S 865-025
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A
737-300/400/500MAINTENANCE MANUAL
 S 865-030
 (17)
 Put the WHEEL SELECT dial on the antiskid control unit to OFF.

 S 865-026

 (18)
 Remove electrical power (Ref 24-22-00/201).

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
 AUTOSLAT CONTROL VALVE - REMOVAL/INSTALLATION
_____________________________________________
 1.  General_______
 A.  This procedure contains two tasks, one for the removal and one for the installation of the autoslat control valve.
 B.  The autoslat valve is found at the aft end of the right ram air duct bay. You can get access to it through the right underwing fairing access panel.
 TASK 27-83-21-024-001
 2.  Autoslat Control Valve Removal (Fig. 401)______________________________
 A.  References
 (1)
AMM 27-81-00/201, Leading Edge Flaps and Slats Control System

 B.  
Access

 (1)  
Location Zone
 213 Right Ram Air Duct

 C.  
Procedure

 S 864-002
 (1)
Release the pressure in the hydraulic systems (AMM 27-81-00/201).

 S 024-003

 (2)  
Remove the autoslat control valve:

 (a)  
Disconnect the 4 hydraulic lines at the valve.

 (b)  
Disconnect the 2 electrical connectors from the valve.

 (c)  
Hold the valve while you remove the 3 bolts.

 (d)  
Remove the valve.

 S 434-004
 (3)  Install plugs in the hydraulic lines and caps on the hydraulic fittings.
 TASK 27-83-21-424-032
 3.  Autoslat Control Valve Installation (Fig. 401)___________________________________
 A.  Consumable Materials
 (1)  
D00183, Hydraulic Fluid, Fire Resistant - BMS 3-11
 (AMM 20-30-21/201)

 (2)  
D00366, Skydrol Assembly Lube - MCS 352 (AMM 20-30-21/201)

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 ALL  ú ú 02 Page 401 ú Nov 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500
MAINTENANCE MANUAL

RAM AIR BAY
SEE  A 
VALVE CONTROL AUTOSLAT 
　
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