32-35-00
ALL ú ú 01 Page 1 ú Jul 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
NOSE GEAR NOSE GEAR
MANUAL EXTENSIONNOSE GEAR LEFT MAIN GEAR HANDLEMANUAL EXTENSION
MANUAL EXTENSION
CONTROL CABLE
RELEASE MECHANISM
AISLE STAND
UP AND LOCKED RELEASED
Nose Gear Manual Extension System Component Location
Figure 1
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32-35-00
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A 737-300/400/500MAINTENANCE MANUAL
4. Operation
_________
A. The nose gear manual extension system is operated from the control cabin. To manually extend the nose gear, proceed as follows:
(1)
Place landing gear control lever in neutral or down position.
(2)
Open manual extension control access door.
(3)
Pull nose gear manual extension handle approximately eight inches and observe that nose gear falls to down and locked position as indicated by the green light on the pilots' instrument panel.
CAUTION: DO NOT HOLD MANUAL EXTENSION HANDLE IN ANY EXTENDED POSITION
_______ DURING HYDRAULIC OPERATION OF THE LANDING GEAR.
(4) Release manual extension handle.
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32-35-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
Nose Gear Manual Extension Control
Figure 2 (Sheet 1)
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32-35-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500
MAINTENANCE MANUAL
RELEASED
FWD
Nose Gear Manual Extension Control Figure 2 (Sheet 2)
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32-35-00
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A
737-300/400/500MAINTENANCE MANUAL
NOSE GEAR MANUAL EXTENSION SYSTEM - TROUBLE SHOOTING
____________________________________________________
1. General
_______
A. In trouble shooting the nose gear manual extension system, the trouble symptoms are best identified by performing a test of manually extending the gear (Ref 32-35-00, A/T).
B. The system is functionally tested with hydraulic system A depressurized and landing gear control lever in the off position.
C. Two men are required, one stationed in the control cabin to operate the nose gear manual extension handle and one stationed near the gears to observe gear action.
D. Nose gear manual extension system must be adjusted properly prior to trouble shooting (Ref 32-35-00, A/T).
2. Prepare for Trouble Shooting
____________________________
A. Jack airplane until nose gear tires clear ground (Ref Chapter 7,
Jacking).
B. Open manual extension access doors in control cabin floor and attach spring scale to nose gear manual extension handle.
C. Connect external electrical power supply.
D. Pressurize hydraulic system A (Ref 29-15-00, MP).
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