(4)  
WDM 32-61-13

 (5)  
WDM 32-61-22

 C.  
Access

 (1)  
Location Zone
 114 Nose Gear Wheel Well - RH
 715 Nose Landing Gear

 D.  
Prepare for the Removal

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A
747-400 MAINTENANCE MANUAL
NOSE WHEEL WELL CEILING SERVICE LIGHT (REF)
TERMINAL STRIP (T400) FOR PRIMARY SENSOR BRACKET
SEE A SEE C
SEE D
SEE B
FWD
VERTICAL 
LINK 
CONDUIT  UPPER DRAG STRUT 
ANCHOR  3.6 
BRACKET  INCHES  A 
TAPE 
(REF)  TERMINAL 
STRIP 

TAPE  7. TERMINAL 
(REF)  LUG 
FLOATING  9. WASHER 
CLAMP 
10. LOCKWASHER 
11. NUT 

B C

Nose Gear Lock Sensor Installation
Figure 201 (Sheet 1)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
TERMINAL STRIP 
(T701) FOR 
ALTERNATE SENSOR 
SEE  C 
CONDUIT 

A
747-400 MAINTENANCE MANUAL
SENSOR BRACKET INSTALLATION UPPER
DRAG STRUT  SEE  F 
TARGET 
2. PRIMARY LOCK  (2 PLACES) 
SENSOR (S397) 

2. ALTERNATE LOCK SENSOR (S424)
SEE E
0.15 |0.03 INCH GAP
4. BRACKET ASSEMBLY (2 PLACES)
8. SHEAR PIN
TARGET SUPPORT BRACKET (2 PLACES)
D
2.
 LOCK SENSOR

3.
 SHIM

4.
 BRACKET

UPPERASSEMBLY1. SCREW DRAG STRUT(2 PLACES)
5.
 WASHER (2 PLACES)

6.
 NUT (2 PLACES)

E
Nose Gear Lock Sensor Installation Figure 201 (Sheet 2)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

F

Nose Gear Lock Sensor Installation
Figure 201 (Sheet 3)

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K04392
A
747-400 MAINTENANCE MANUAL
 S 492-071
 WARNING: YOU MUST CAREFULLY INSTALL THE GROUND LOCKS IN ALL LANDING
_______ GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  Make sure the ground locks are installed in all landing gear (AMM 09-11-00/201).
 S 492-036
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO INSTALL
_______ THE STEERING LOCKOUT PIN. THE NOSE WHEEL CAN ACCIDENTALLY TURN AND CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (2)  Make sure the steering lockout pin is installed (AMM 09-11-00/201).
 S 492-073
 WARNING:_______OBEY THE INSTALLATION PROCEDURE FOR THE DOOR LOCKS. THE DOORS OPEN AND CLOSE QUICKLY. THE MOVEMENT OF THE DOORS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (3)  Install the door locks on the nose landing door (AMM 32-00-30/201).
 S 042-039
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO PREPARE
_______ THE AIR/GROUND RELAY SYSTEM IN THE AIR MODE. A FAILURE TO DO THE STEPS CORRECTLY CAN CAUSE THE AUTOMATIC OPERATION OF AIRPLANE SYSTEMS. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
　
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