747-400 AMM 飞机维护手册 SERVICING 2(42)

曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者

 NOTE: A safety barrier is not necessary if a maintenance stand was
____ put directly outboard of the upper deck door.
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747-400
MAINTENANCE MANUAL

PORTAL LATCH FITTINGS DOOR HINGE SEEK SEEA
DRIVE PORTAL LATCHMECHANISM FITTINGS
SEE B SEE K
PORTAL LATCH MECHANISM
SEE J
DOOR 
FITTINGS 
SEE  G 
DOOR HINGE 
FLUSH 
MIL-G-23827 
(1 LOCATI0N) 

1  THE RIGHT SIDE HINGE IS HINGE IS THE SAME. SHOWN. THE LEFT SIDE  1 POINT 
A  1 
Figure 315 (Sheet 1) Nose Cargo Door 

C72242
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FLEXIBLE DRIVE SHAFT 2
MIL-G-23827 (1 LOCATION)
BALL NUT ZERK
MIL-G-23827
(1 LOCATION)
DISCONNECT FLEXIBLE POWER SHAFT AND PULL DRIVE CORE OUT OF HOUSING BEFORE LUBRICATING
2
747-400 MAINTENANCE MANUAL
GEARBOX SEE E
DRIVE MECHANSIM 2 POINTS
B
SEE D
1 POINT
C
TO LUBRICATE BALLNUT ROTATE BALLNUT TO EXPOSE LUBE FITTING THRU ACCESS HOLE. LUBRICATE WITH -A- GREASE UNTIL GREASE COMES OUT EITHER END OF BALLNUT. REMOVE EXCESS
D
Nose Cargo Door
Figure 315 (Sheet 2)

BALL NUT SEE C
SLIDING JOINT SPRAY BMS 3-23 (1 LOCATION)
C72248
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747-400
MAINTENANCE MANUAL

UPPER OIL
FILL PLUG

E

Nose Cargo Door
Figure 315 (Sheet 3)

C72256
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747-400
MAINTENANCE MANUAL

DOOR LATCH 
FITTING 
(16 LOCATIONS) 
SEE  I 
PUSH-PULL CAM  PUSH-PULL CAM 
FLUSH  SEE  H 
DOOR FITTINGS 
MIL-G-23827  G 
(1 LOCATION) 
PUSH-PULL CAM 
FLUSH 
MIL-G-23827 
(1 LOCATION) 

2 POINTS 
H 
FITTING DOOR LATCH FLUSH 
3  FITTINGS ON THE DOOR THERE ARE SIXTEEN DOOR LATCH  I 1 POINT 3  MIL-G-23827 (1 LOCATION) 
Nose Cargo Door Figure 315 (Sheet 4) 

C72263
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747-400
MAINTENANCE MANUAL

PORTAL LATCH MECHANISM
(EXAMPLE)

2 POINTS

4
THERE ARE SIXTEEN PORTAL LATCH
MECHANISMS ON THE BODY STRUCTURE

4
Nose Cargo Door
Figure 315 (Sheet 5)

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