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A
747-400
MAINTENANCE MANUAL
Wing Gear Wheel Well Outboard Door Adjustment
Figure 504 (Sheet 1)
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A 747-400 MAINTENANCE MANUAL
WING GEAR WHEEL
WELL OUTBOARD DOOR WING GEAR WHEEL
WING GEAR SHOCK STRUT DOOR FAIRING
INBD
A-A B-B
0.03 INCH (70% OF DOOR AFT EDGE) 0.06 INCH (70% OF DOOR AFT EDGE)
INSIDE MISMATCH OUTSIDE MISMATCH
C-C
Wing Gear Wheel Well Outboard Door Adjustment
Figure 504 (Sheet 2)
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747-400 MAINTENANCE MANUAL
FORWARD FORWARD
0.06 INCH (70% OF FORWARD EDGE OF DOOR)
0.12 INCH (30% OF FORWARD EDGE OF DOOR)
MAX MISMATCH
0.03 INCH (70% OF FORWARD EDGE OF DOOR)
0.06 INCH (30% OF FORWARD EDGE OF DOOR)
OUTSIDE MISMATCH INSIDE MISMATCH
FWD
D-D
SEAL (REF)
|0.12 INCH MISMATCH
INBD
E-E
Wing Gear Wheel Well Outboard Door Adjustment
Figure 504 (Sheet 3)
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747-400 MAINTENANCE MANUAL
~...............................................................................
| WING GEAR WHEEL WELL DOOR FLUSHNESS AND CLEARANCE DEVIATIONS |
| OUTBOARD DOOR |
| TABLE 502 |
................................................................................. | | | TYPE OF | MISMATCH | | | AIRPLANE | ZONE | MISMATCH | (FLUSHNESS) | CLEARANCE | 2............…........….............…..................…........................1
S 225-023
(2)
Make sure the pin-to-pin dimensions of the forward radius rods are 19.59; 21.92; 40.62 |.03 inches.
S 865-025
(3)
Pressurize the hydraulic systems No. 1 and 4 (AMM 29-11-00/201).
S 865-026
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 the wheel well doors of the wing and body landing gears.
S 865-027
(5)
Remove the pressure from hydraulic systems No. 1 and 4 (AMM 29-11-00/201).
S 835-028
(6)
Adjust the outboard door of the wheel well:
(a)
Make sure the mismatch of the contour between the inboard and outboard wheel well doors is in the limits (Fig. 504).
(b)
Make sure the flushness between the inboard and outboard wheel well door is in the limits (View E-E, Fig. 504).
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A
747-400
MAINTENANCE MANUAL
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.
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