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时间:2011-04-12 10:23来源:蓝天飞行翻译 作者:航空
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A

747-400
MAINTENANCE MANUAL

FORWARD INBOARD
FOR CONTINUATION BRAKE LINE
SEE SHEET 3
AFT OUTBOARD
LINE

TRUCK POSITIONER LINE
FORWARD OUTBOARD
BRAKE LINE FORWARD OUTBOARD BRAKE LINE
FORWARD INBOARD
TRUCK BRAKE LINE
POSITIONER LINE
AFT OUTBOARD
BRAKE LINE
AFT INBOARDBODY GEAR STEERING BRAKE LINERETRACT LINE
BODY GEAR STEERING
ROD END PRESSURE
LINE

SEE A
FWD
Body Landing Gear Hydraulic Line Identification
Figure 402 (Sheet 1)

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747-400
MAINTENANCE MANUAL

TRUCK POSITIONING 
ACTUATOR 
BRAKE LINE 
DISCONNECT 

FWD  FWD OUTBD BRAKE LINE  FWD INBD BRAKE LINE 
TRUCK POSITIONER LINE  OUTBD BRAKE LINE AFT 

Body Landing Gear Hydraulic Line Identification
Figure 402 (Sheet 2)

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747-400
MAINTENANCE MANUAL

AFT OUTBOARD 
BRAKE LINE 
FORWARD OUTBOARD 
BRAKE LINE  TRUCK POSITIONER LINE 
FORWARD INBOARD 
BRAKE LINE  BODY GEAR 
STEER EXTEND 
OUTBOARD 
AFT INBOARD 
BRAKE LINE 
BODY GEAR STEER 
RETRACT LINE 
PLACARD 
STA 1460 
SUPPORT 
BRACKET 
STEER EXTEND 
OUTBOARD 
(FROM 1460 
SUPPORT 
BRACKET) 

STEER EXTEND INBOARD (FROM 1480 BLKHD)
HYDRAULIC LINE
SUPPORT BRACKET

BODY GEAR STEER
FWD RETRACT LINE
Body Landing Gear Hydraulic Line Identification
Figure 402 (Sheet 3)

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400
MAINTENANCE MANUAL

ELECTRICAL
CONDUIT

BRAKE EQUALIZER ROD
TORSION LINK
PULL BOX
Body Landing Gear Electrical InstallationFigure 403
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747-400 MAINTENANCE MANUAL
 S 034-117
 (10) Remove the lower piece of conduit from the truck.
 NOTE:  Pull the wire bundles through the pull boxes if it is
____
 necessary.

 S 584-118
 (11)
 Put axle jacks below each end of the truck and lift the truck until it is supported only by the jacks (AMM 07-11-03/201).

 S 494-119

 (12)
 Safety the inner cylinder and truck to the outer cylinder with a nylon sling through the inner cylinder yoke.


 NOTE: Wind the sling through the inner cylinder yoke two times to
____ increase the strength of the sling. Pull the sling tight to decrease the extension of the inner cylinder when you lower the jacks.
 S 584-120
 WARNING: MAKE SURE YOU USE THE CORRECT SUPPORTS FOR THE TRUCK ASSEMBLY.
_______ THE TRUCK ASSEMBLY WEIGHS APPROXIMATELY 770 POUNDS. THE INNER CYLINDER WEIGHS APPROXIMATELY 450 POUNDS. THE TORSION LINKS WEIGHS APPROXIMATELY 82 POUNDS EACH. THE TRUCK POSITIONING LINK WEIGHS APPROXIMATELY 15 POUNDS. INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR IF YOU DO NOT USE THE CORRECT SUPPORTS AND THE TRUCK ASSEMBLY FALLS.
 
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