737-300机组操作手册Flight Crew Operations Manual FCOM 3(100)

Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.10.1
Landing Gear Panel  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.10.1 Manual Gear Extension  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.10.2 Main Gear Viewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.10.3 Nose Gear Viewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.10.4 Autobrake and Antiskid Controls  . . . . . . . . . . . . . . . . . . . . . . . 14.10.5 Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.10.6 Hydraulic Brake Pressure Indicator . . . . . . . . . . . . . . . . . . . . . . 14.10.7 Rudder/Brake Pedals  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.10.7 Nose Wheel Steering Switch  . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.10.8 Nose Wheel Steering Wheel  . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.10.8
System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.1
Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.1
Landing Gear Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.1
Landing Gear Retraction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.1
Landing Gear Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.2
Landing Gear Manual Extension  . . . . . . . . . . . . . . . . . . . . . 14.20.2
Nose Wheel Steering  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.3
Brake System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.4
Normal Brake System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.4
Alternate Brake System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.4
Brake Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.4
Antiskid Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.4
Autobrake System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.5
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.6
Air/Ground System  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.20.6
Air/Ground System Logic Table . . . . . . . . . . . . . . . . . . . . . . 14.20.7
Landing Gear -Table of Contents 737 Operations Manual

Intentionally
Blank

Copyright . The Boeing Company. See title page for details.
14.TOC.0.2  December 7, 2001

Landing Gear Panel

 NOSE GEAR 
 
NOSE GEAR 
LEFT GEAR  RIGHT GEAR 
LEFT GEAR  RIGHT GEAR 

Landing Gear Indicator Lights (top)
Illuminated (red) –
.  
landing gear is not down and locked (with either or both forward thrust
levers retarded to idle)

.  
related landing gear is in disagreement with LANDING GEAR lever
position (in transit or unsafe)

Extinguished –
.
landing gear is up and locked with landing gear lever UP or OFF

.
landing gear is down and locked with landing gear lever DN.

Landing Gear Indicator Lights (bottom)
Illuminated (green) – related gear down and locked.
Note: Landing gear warning horn is deactivated with all gear down and locked.
Extinguished – landing gear is not down and locked.

Landing Gear -Controls and Indicators 737 Operations Manual

LANDING GEAR Lever
UP – landing gear retract OFF – hydraulic pressure is removed from landing gear system DN – landing gear extend.

Override Trigger
Allows LANDING GEAR lever to be raised, bypassing lever lock.

LANDING GEAR LIMIT Speed Placard
Indicates maximum speed while operating landing gear and after gear extension.
Manual Gear Extension

Manual Extension Access Door
Manual Gear Extension Handles
Right main, nose, left main– With LANDING GEAR lever in the OFF position, each landing gear uplock is released when related handle is pulled to its limit, approximately 18 inches (45 cm) for the main gear, approximately 8 inches (20 cm) for the nose gear.
Copyright . The Boeing Company. See title page for details.
14.10.2  June 6, 2003
Landing Gear -Controls and Indicators
737 Operations Manual
Main Gear Viewer
1 2
UPPER
SIDE
STRUT

LOWER SIDE RED STRUT STRIPE
PASSENGER CABIN FLOOR and MAIN LANDING GEAR
　
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