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时间:2011-04-14 10:14来源:蓝天飞行翻译 作者:航空
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 S 215-045
 (1)  
Make sure the latch pins are in the center of the latch fitting bearings.

 S 825-046

 (2)  
Adjust the fitting on the serration, if it is neceesary, to adjust the latch pin in the center of the bearing.


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747-400 MAINTENANCE MANUAL
 S 225-047
 (3)  On Latch 9, Make sure the clearance between the door fitting and bearing is
 0.003 to 0.010 inch (0.076 to 0.254 mm).
 S 225-048
 (4)  On Latches 10 and 11, Make sure the clearance between the door fitting and bearing is
 0.003 to 0.043 inch (0.076 to 1.09 mm).
 S 825-049
 (5)  
Add or remove laminated shims under fitting, if it is necessary, to get the correct clearance.

 S 435-050

 (6)  
Make sure to tighten nuts on the attachment bolts.

 K.
Linear Actuator Adjustment (Fig. 504)


 S 215-051
 (1)  
Make sure the latch and push-pull cam mechanisms are adjusted or in the correct positions.

 S 215-052

 (2)  
Make sure all electrical connectors are connected.

 S 865-053

 (3)  
Make sure the door is closed.

 S 215-054

 (4)  
Make sure the flexible drive shafts are disconnectd from the linear actuators.

 S 865-055

 (5)  
Close this circuit breaker and attach DO-NOT-CLOSE tag:

 (a)  
On the Nose Cargo Door Power panel H122:
 1) DOOR LIFT

 

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747-400 MAINTENANCE MANUAL
 2) PULL UP CAM
 3) LATCHES 1-4R
 4) LATCHES 1-4L
 5) LATCHES 5-8R
 6) LATCHES 5-8L

 S 865-056
 (6)  
Hold the control switches in the open position until the push-pull cam is in the fully open position.

 S 865-057

 (7)  
Open this circuit breaker and attach DO-NOT-CLOSE tag:

 (a)  
On the Nose Cargo Door Power panel H122:
 1) PULL UP CAM

 

 S 865-058
 (8)  
Hold the control switches in the close position until the drive unit motor stops running.

 S 825-059

 (9)  
Manually adjust the linear actuator length until you can install the rig pin in the aft end of the actuator.

 S 435-060

 (10)
 Install the flexible drive shafts on the actuators.

 S 865-061

 (11)
 Remove the DO-NOT-CLOSE tag and close this circuit breaker:

 (a)  
On the Nose Cargo Door Power panel H122:
 1) PULL UP CAM

 

 S 865-062
 (12)
 Fully close and latch the door.

 S 225-063

 (13)
 Make sure the end of the actuator shaft makes an overlap 0.25 to


 0.75 inch (6.35 to 19.05 mm) on the inspection hole.
 S 215-064
 (14)
 Make sure the forward part on the actuator shaft touches the nylon shaft support.

 L.
Adjustable Fairing Skin Adjustment (Fig. 505)


 S 215-065
 (1)  Make sure the latch and push-pull cam mechanisms are adjusted or in the correct position.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
 (2)  S 215-066Make sure the door is fully closed and latched.
 (3)  S 225-067Make sure the clearance between the adjustable fairing skin and portal skin is 0.08 to 0.20 inch (2.03 to 5.08 mm) around the door.
 
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本文链接地址:747-400 AMM 飞机维护手册 舱门 DOORS 2(15)