(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.
 (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 dimensions, adjust the door.

 S 865-159
 (7)  Pressurize the hydraulic system No. 1 and 4 (AMM 29-11-00/201).
 S 865-160
 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 865-161

 (9)  
Remove the pressure from hydraulic systems No. 1 and 4 (AMM 29-11-00/201).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
747-400 MAINTENANCE MANUAL
 S 835-163
 (10)
 Repeat the 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.
 (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 install the rigging pin or if you can not keep the dimensions, adjust the door.

 J.
Do The Last Door System (Fig. 503 and 504)

 S 865-165
 (1)  Pressurize the hydraulic systems No. 1 and 4
 (AMM 29-11-00/201).

 S 865-166
 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.
 (2)  Operate the release handle to close the wheel well doors for the wing and body landing gear.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-12-00
 ALL  ú ú 10 Page 553 ú Feb 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (3)  S 865-167Remove the pressure from hydraulic systems No. 1 and 4 (AMM 29-11-00/201).
 (4)  S 835-168Make sure that the inboard and outboard wheel well doors align as shown (Fig. 503 and 504).
 S 865-169

 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.
 (5)  
Operate the release handle to open the wheel well doors for the wing and body landing gears.

 S 865-170

 (6)  
Pressurize the hydraulic systems No. 1 and 4 (AMM 29-11-00/201).
　
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