27-83-00
P/N 65-52822 ú CONFIG 2
ú 02 Page 103
ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
LEADING EDGE AUTOSLAT SYSTEM - ADJUSTMENT/TEST
______________________________________________
1. General_______
A. This subject contains two tasks. The first task is an operational test of the leading edge autoslat system. The second task is a system test of the leading edge autoslat system.
TASK 27-83-00-715-001-001
2. Operational Test - Leading Edge Autoslat System_______________________________________________
A. General
(1)
The trailing edge flap position indicating system must operate correctly before you do this test.
B.
References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 27-81-00/201, Leading Edge Flap and Slat Control System
C.
Access
(1)
Location Zone
101, 102 Control Cabin
D.
Prepare for the Test
S 865-002-001
(1) Supply electrical power (AMM 24-22-00/201).
S 865-003-001
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.
WARNING: THE LEADING EDGE SLATS CAN AUTOMATICALLY EXTEND WHEN THE
_______ TRAILING EDGE FLAPS EXTEND. THE SLATS WILL AUTOMATICALLY EXTEND TO FULL DOWN FOR TRAILING EDGE EXTEND POSITIONS 1, 2 OR 5 WHEN AN AUTOSLAT ANGLE OF AIRFLOW VANE IS CORRECTLY ROTATED AND EITHER MAIN OR NOSE GEAR AIR/GROUND SWITCH SENSES AIR MODE.
(2) Supply system B hydraulic power (AMM 27-81-00/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH AUTOSLAT ú
27-83-00
COMPUTER P/N 65-52818 ú CONFIG 1 ú 01 Page 501 ú Jul 15/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
S 865-005-001
(3)
Move the No. 1 and 2 thrust levers to the aft stops.
S 865-006-001
(4)
Make sure that the TE flaps and the LE flaps and slats are fully retracted.
S 865-007-001
(5)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(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
S 715-008-001
(6)
Do a check of the autoslat system indicator lights:
(a)
Push the AUTOSLAT FAIL light (P5 panel) and make sure that it comes on.
(b)
Hold the LIGHTS switch (P2 panel) to TEST and make sure that these lights come on: 1) Left and right MASTER CAUTION (P7 pilots' lightshield). 2) FLT CONT (P7 pilots' lightshield). 3) AUTOSLAT FAIL (P5 panel).
(c)
Set the LIGHTS switch (P2 panel) to BRT.
(d)
Push the RESET button on each autoslat computer (ASC).
(e)
Make sure that the PWR OK light on each ASC is on.
(f)
Make sure that all lights on each ASC except the PWR OK light are off.
(g)
Push the master caution RECALL button on the pilots' lightshield.
(h)
Make sure that the AUTOSLAT FAIL light is off.
E.
Autoslat Operational Test
NOTE: Use the TE flap position indicators to find the TE flap position.
____ S 865-009-001
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