32-61-01
ALL ú ú 01 Page 205 ú Oct 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
(b)
Apply a thin layer of the primer on the surface of the terminals and let the primer dry.
(c)
Apply the sealant on the surface of the terminals with a short bristle brush.
S 432-013
(3)
Install the covers on the pull box and the P37 control panel.
S 862-014
(4)
After the alternate sensor installation, remove the DO-NOT-CLOSE tags and close this circuit breaker on the overhead circuit breaker panel, P7:
(a)
7F32, LANDING GEAR DSP & CONT ALTN
S 862-015
(5)
After the primary sensor installation, remove the DO-NOT-CLOSE tag and close this circuit breaker on the overhead circuit breaker panel, P7:
(a)
7F22, LANDING GEAR DSP & CONT PRI
S 442-056
(6)
Put the airplane back to the ground mode (AMM 32-09-02/201).
S 742-017
(7)
Do the ground test of the PSEU (AMM 32-09-03/501).
S 722-071
(8)
Do the task "Test of the Squat Sensor for the Nose Landing Gear".
TASK 32-61-01-002-019
4. Remove the Squat Sensor Target (Fig. 202)______________________________
A. References
(1)
AMM 09-11-00/201, Towing
(2)
AMM 32-00-30/201, Landing Gear Door Locks
B.
Access
(1)
Location Zone
715 Nose Landing Gear
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A
747-400
MAINTENANCE MANUAL
SEE B
TARGET
SQUAT ASSEMBLY SEE A
SENSOR
0.15 |0.03 INCH CLEARANCE
FWD
MOUNTING CLAMPS FOR THE SWITCH
BRACKET BRACKET
SHIM
MOUNTING BOLT (2 LOCATIONS) ANGLE
PLATE UPPER
BRACKET ASSEMBLY TORSION
(SHOWN IN THE POSITION LINKELASTIC
WITH THE STRUT FULLY BUMPER
EXTENDED)
FWD
A HANDLE
QUICK
LOWER DISCONNECT
TORSION LOCKPIN
LINK TRIPOD APEX PIN
THREADED BUSHING
FWD
B
Installation of the Squat Sensor Target for the Nose Landing Gear Figure 202
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747-400 MAINTENANCE MANUAL
C. Prepare for the Removal
S 492-044
WARNING: MAKE SURE THE GROUND LOCKS AND THE STEERING LOCKOUT PIN ARE
_______ INSTALLED ON THE NOSE GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR OR TURN OF THE NOSE WHEEL CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(1) Make sure the ground locks and steering lockout pin are installed on the nose gear (AMM 09-11-00/201).
S 492-046
WARNING: MAKE SURE THE DOOR LOCKS ARE INSTALLED ON THE NOSE GEAR DOORS.
_______ FAST MOVEMENT OF THE DOORS FOR THE LANDING GEAR CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2)
Install the door locks for the nose gear (AMM 32-00-30/201).
D.
Remove the Squat Sensor Target
S 002-047
(1)
Do these steps to remove the squat sensor target:
(a)
Remove the two bolts and the nuts that hold the bracket assembly to the upper torsion link.
(b)
Remove the squat sensor target from the airplane.
TASK 32-61-01-402-057
5. Install the Squat Sensor Target (Fig. 202)
_______________________________
A. Special Tools and Equipment
(1)
8ME65B01202-1 Torsion Link Holding Tool
B.
Consumable Materials
(1)
A00247 Sealant - Chromate BMS 5-95
(2) 中國(guó)航空網(wǎng) m.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊(cè) 起落架 LANDING GEAR 9(64)
