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时间:2011-04-12 10:20来源:蓝天飞行翻译 作者:航空
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 (c)  
Loosen the attached bolts.

 (d)  
Adjust the hinge fitting for the strike board fore and aft to get the 0.60 to 0.70-inch dimension (View A-A, Fig. 508).

 (e)  
Adjust the hinge fitting vertically to get the 13.35 inches maximum and 1.55 inches minimum dimension (View B-B, Fig. 508).

 (f)  
If you can not get the 13.35 inch maximum dimension, continue as follows: 1) Remove the rigging pin. 2) Loosen the 4 bolts that attach the serrated bracket (View


 B, Fig. 502) on the inboard door to get the door open dimension (near to the inboard limit as shown View A, Fig. 505).
 3)  Adjust the hinge fitting vertically to get the 13.35 inches maximum and 1.55 inches minimum dimension (View B-B, Fig. 508). a) Make sure that you can install the rigging pin freely.
 4)  Tighten the 4 bolts that attach the serrated bracket.
 CAUTION: REMOVE THE RIGGING PIN WITH THE DOOR CONNECTED.
_______ FALIURE TO DO SO WILL CAUSE DAMAGE TO THE SEQUENCE VALVE MECHANISM IF THE DOOR OPERATES.
 5) Connect the linkage rod and tighten the nut on the linkage rod to 25 - 50 pound-inches. 6) Tighten the hinge fitting bolts, and remove the rigging pin.
 CAUTION:_______REMOVE THE RIGGING PIN WITH THE DOOR CONNECTED. FAILURE TO DO SO WILL CAUSE DAMAGE TO THE SEQUENCE VALVE MECHANISM IF THE DOOR OPERATES.
 (g)  If you get 13.35 inches maximum dimension, connect the linkage rod.
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747-400 MAINTENANCE MANUAL
 (h)  
Tighten the nut on the linkage rod to 25 - 50 pound-inches.

 (i)  
Tighten the hinge fitting bolts, and remove the rigging pin.


 S 865-049
 (3)  Pressurize the hydraulic systems No. 1 and 4 (AMM 29-11-00/201).
 S 865-050
 WARNING: MAKE SURE THAT ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE DOOR
_______ OPERATION PATHS. DO NOT MOVE THE DOORS TOO QUICKLY. IT CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (4)  
Operate the release handle to close and open the wheel well doors for the wing and body landing gears.

 S 865-051

 (5)  
Remove the pressure from hydraulic systems No. 1 and 4 (AMM 29-11-00/201).

 S 835-053

 (6)  
Do a check of the rigging pin installation, the door open dimension and of the strike board dimensions:

 (a)  
Do a check for the installation of the rigging pin (WD-1 LH, WD-2 RH) at point A (Fig. 502).

 (b)  
Use the door locks to open the door fully with the rigging pin in its position.

 (c)  
Examine the full open dimension (distance from the buttock plane zero to the door midfold hinge) at the front end of the door (View A, Fig. 505).


 NOTE: Hang a plumb bob at point E and Y (Views B and C,
____ Fig. 505) to get the buttock plane zero. The airplane must have the usual load distribution, the equal tire and the shock strut inflation. Put a floor mark label on the floor below each plumb bob point. Write a line between the two points.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
747-400 MAINTENANCE MANUAL
 (d) Make sure that you keep the strikeboard maximum dimension of
 13.35 inches and minimum dimension of 1.55 inches (View B-B, Fig. 508).
 (e)  If you can not install the rigging pin or if you can not keep the dimension, adjust the door.
 S 865-055
 (7)  Pressurize the hydraulic systems No. 1 and 4 (AMM 29-11-00/201).
 S 865-056
 WARNING: MAKE SURE THAT ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE DOOR
_______ OPERATION PATHS. DO NOT MOVE THE DOORS TOO QUICKLY. IT CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (8)  
Operate the release handle to close and open the wheel well doors for the wing and body landing gears.

 S 865-057

 (9)  
Remove the pressure from hydraulic systems No. 1 and 4 (AMM 29-11-00/201).
 
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本文链接地址:747-400 AMM 飞机维护手册 起落架 LANDING GEAR 2(82)