-
For the Primary Tilt Sensor (S417, S416): Label 270/00

 -
For the Alternate Tilt Sensor (S615, S614): Label 272/00.

 (b) Make sure the CDU display for the label 270/00 or 272/00 is
 shown as follows (Fig. 202): ~......................................................... |Sensor and Bit Location | Bit State |Description | ........................................................... |Left Wing Gear Tilt on Bit 20 | 0 |NOT TILTED | ........................................................... |Right Wing Gear Tilt on Bit 22 | 0 |NOT TILTED | 2...............................…............…............1
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A 747-400 MAINTENANCE MANUAL
"INPUT MONITORING" DISPLAY

LINE SELECT KEYS (LSK)
CDU
"INPUT MONITORING" DISPLAY
(EXAMPLE)

Test of the Wing Gear Tilt Sensor with the CMC

Figure 203

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
C31239
A
747-400 MAINTENANCE MANUAL
 (c)  
Put the actuator on the applicable sensor, S417, S416 (Primary Tilt Sensor) or S615, S614 (Alternate Tilt Sensor).

 (d)  
Make sure the CDU display for the label 270/00 or 272/00 is

 shown as follows (Fig. 202): ~......................................................... |Sensor and Bit Location | Bit State |Description | ........................................................... |Left Wing Gear Tilt on Bit 20 | 1 |TILTED | ........................................................... |Right Wing Gear Tilt on Bit 22 | 1 |TILTED | 2...............................…............…............1

 (e)  
Remove the actuator from the sensor, S417, S416 (Primary Tilt Sensor) or S615, S614 (Alternate Tilt Sensor).

 (f)  
Push the line-select key, adjacent to the <RETURN display until the CDU MENU shown.

 F.
Put the Airplane in Its Usual Condition

 S 092-057
 WARNING: USE THE PROCEDURE IN 32-00-30/201 TO REMOVE THE DOOR LOCKS.
_______ THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  
Remove the door locks for the landing gear and close the doors (AMM 32-00-30/201).

 (2)
Remove electrical power if it is not necessary (AMM 24-22-00/201).

 S 862-058
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A
747-400 MAINTENANCE MANUAL
 NOSE LANDING GEAR DOOR WARNING SENSOR - MAINTENANCE PRACTICES
_____________________________________________________________
 1.  General_______
 A.  This section contains two tasks:
 (1)  
The removal of the nose gear door warning sensors

 (2)  
The installation of the nose gear door warning sensors

 B.  
The nose gear door warning sensors are found on the forward bulkhead in the nose landing gear wheel well.

 TASK 32-61-30-002-001
 2.  Remove the Nose Landing Gear Door Warning Sensors_________________________________________________
 A.  Standard Tools and Equipment
 (1)  
Nonabrasive, nonconducting plastic scraper

 B.  
References

 (1)  
09-11-00/201, Towing

 (2)  
32-00-30/201, Landing Gear Door Locks

 (3)  
32-09-02/201, Air/Ground Relay System

 (4)  
IPC 32-61-10 Fig. 21

 C.  
Access
　
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