(a)  
On the door control and lights panel:
 1) Blue DOOR UP light goes off
 2) White POWER ON light comes on.

 S 715-007
 (5)  
When the door closes and the push-pull cam touches the cam rollers, make sure the drive unit and linear actuators stop and the push-pull cam actuator starts to pull the cam.

 S 715-008

 (6)  
Make sure the push-pull cam actuator stops after the push-pull cam pulled the door to the fully closed position.

 (7)  
Make sure all the latch pins engage in the latch fittings smoothly.

 S 715-009
 NOTE: When the door opens or closes it can make unusual noise when
____ the latch pins engage the spherical bearings. It is permitted.
 S 215-010
 (8)  
After the door is fully closed and latched, look to see these indications:

 (a)  
On the door latch annunciator panel:
 1) 16 green LATCHED lights come on
 2) 16 amber NOT LCHD lights go off.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 52-31-00
 ALL  ú ú 02 Page 514 ú Feb 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (b)  
On the door control and lights panel: 1) Green LATCHES CLOSED light comes on.

 (c)  
On the door closed annunciator panel: 1) 2 Green DOOR CLOSED lights come on 2) 2 amber DOOR NOT CLOSED lights go off.

 S 215-011
 (9)
Release the control switches and look to see these indications:

 (a)  
On the EICAS display: 1) The caution message DOOR NOSE CARGO remains.

 (b)  
On the synoptic display: 1) The amber nose cargo door remains.

 S 215-177
 (10)
 Hold the SYSTEM POWER switch in the OFF/LOCK TEST position to lock the door and look to see these indications:

 (a)  
On the EICAS display: 1) The caution message DOOR NOSE CARGO does not show.

 (b)  
On the synoptic display: 1) The amber nose cargo door does not show.

 (c)  
On the Nose Door Control and Lights panel, H121:

 1)  The green LOCK-OUT ENGAGE light comes on (and goes off when the switch is released).
 F.  Put the Airplane Back To Its Ususal Condition.
 S 865-013
 (1)  
Make sure the door is fully closed, latched and locked.

 S 865-169

 (2)  
Remove the electrical power, if it is not necessary.

 S 095-170

 (3)  
Remove the safety barrier across the door opening.

 TASK 52-31-00-835-016
 3.  Adjustment - Nose Cargo Door System___________________________________
 A.  General
 (1)  
The adjustments of the nose cargo door mechanisms are in the order necessary for the door replacement. The adjustments of the mechanisms are related and you must do them in the following recommended sequence to make sure the door operation is correct:

 (a)  
The push-pull cam and actuator

 (b)  
The latch fittings

 (c)  
The linear actuators

 (d)  
The adjustable fairing skin

 (e)  
The hinge access clearance door

 (2)  
For the adjustment of the door warning switches, refer to AMM 52-71-00/501.

 B.  
Special Tools and Equipment

 (1)  
Alternate Drive Extension, Nose Door Lift - MIT65B80430 (2 required for raising and lowering door)

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 52-31-00
 ALL  ú ú 02 Page 515 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (2) Rigging pin - ND-4, 0.250 (| 0.005) inch diameter, minimum length
 4.0 inches
 (3)  
Alignment Pin, Nose Cargo Door - MIT65B80432

 (4)  
Rigging pin - ND-2, 0.311, 0.00/-0.002 inch diameter, minimum length

 2.00 inches (7.89 mm, 0.00/-0.05 mm diameter, minimum length 50.80 mm).
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 艙門 DOORS 2(11)