(4 PLACES) CONNECTORS HYDRAULIC LINE 
CONNECTOR ELECTRICAL 
CONNECTOR ELECTRICAL 

FWD
A

Autoslat Control Valve Installation
Figure 401

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 ALL  ú ú 02 Page 402 ú Jul 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 B.  References
 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 27-83-00/501, Leading Edge Autoslat System

 C.  
Access

 (1)  
Location Zone
 213 Right Ram Air Duct

 D.  
Installation Procedure

 S 434-005
 (1)
Move the hydraulic fitting to the new valve as necessary.

 S 424-006

 (2)  
Install the valve:

 (a)  
Hold the valve in position to align the bolt holes.

 (b)  
Install the 3 bolts which attach the valve.

 S 034-007
 (3)
Remove the caps and plugs from the hydraulic lines and fitings.

 S 434-008

 (4)  
Connect the hydraulic lines.

 S 434-009

 (5)  
Connect the 2 electrical connectors to the valve.

 S 714-037

 (6)  
AIRPLANES WITH THE AUTOSLAT COMPUTER; Do this task: "Autoslat Control Valve Test" (AMM 27-83-21/401).

 S 714-036

 (7)  
AIRPLANES WITHOUT THE AUTOSLAT COMPUTER; Do this task: "Operational Test - Leading Edge Autoslat System" (AMM 27-83-00/501, CONFIG 2).

 S 214-039

 (8)  
Make sure that there are no leaks at the hydraulic fittings at the autoslat control valve.

 TASK 27-83-21-714-011
 4.  AIRPLANES WITH AUTOSLAT COMPUTER;_________________________________ Autoslat Control Valve Test___________________________
 A.  References
 (1)  
AMM 24-22-00/201, Manual Control

 B.  
Access

 (1)  
Location Zone
 101, 102 Control Cabin
 205 Electronic Compartment

 (2)  
Access Panel
 1201 Electronic Equipment Access Door

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 C. Prepare for the Test
 S 864-013
 (1)  
Move the No. 1 and No. 2 throttle levers to the aft stops.

 S 864-014

 (2)  
Make sure that the trailing edge flaps and the leading edge flaps and slats are fully retracted.

 S 864-015

 (3)  
Supply electrical power (AMM 24-22-00/201).

 S 864-016

 (4)  
Open these circuit breakers:

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

 S 864-017
 (5)  
Push the RESET buttons on No. 1 and 2 autoslat computers.

 (a)  
Make sure that all lights on the 2 autoslat computers are off except the PWR lights.

 S 864-018
 (6)  
Push the master caution RECALL button on the glareshield.

 (a)  
Make sure that the AUTOSLAT FAIL light stays off.

 D.
Test Procedure

 S 864-029
 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS, ELEVATORS, FLAPS, SLATS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  Supply system B hydraulic power (AMM 27-81-00/201).
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