S 865-086
(2)
Move the control handle of the landing gear to the UP position to retract the wing landing gear.
S 865-087
(3)
Remove the pressure from hydraulic system No. 4
(AMM 29-11-00/201).
S 835-088
(4)
Adjust the inboard shock strut door.
(a)
With the wing gear retracted and the linkage rod connected, measure the clearance and mismatch between the door and wing panels (View B-B, Fig. 506).
NOTE:____Do not adjust the door hinge halves. The door hinges have been positioned by special tooling which makes sure of interchangeability. Do not add or remove shims to adjust hinge fittings.
(b)
If the measured dimensions are more than the limits (Fig. 506), adjust the linkage rod (View C, Fig. 506) to align the door.
NOTE: Make sure you can see the rod end threads through
____ the inspection hole of the linkage rod.
(c)
Tighten the linkage rod nut to 290 - 410 pound-inches and install safety wire.
(d)
Align the forward edge of the door with the adjacent wing panel surface by adjusting the linkage rods of the fixed trailing edge ( Detail D, Fig. 506 Sheet 2 ).
S 865-090
(5) Pressurize hydraulic systems No. 1 and 4
(AMM 29-11-00/201).
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747-400 MAINTENANCE MANUAL
S 865-091
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.
(6)
Operate the release handle to close the wheel well doors for the wing and body landing gears.
S 865-092
(7)
Remove the pressure from hydraulic systems No. 1 and 4
(AMM 29-11-00/201).
S 225-093
(8)
Examine the adjustment of the door fairing as shown on Views A-A and B-B, Fig. 507.
NOTE: Both the right and left side wheel well doors must be closed
____
for accurate misfair measurements.
S 835-094
(9)
If you have adjusted the fairing correctly, stop the adjustment procedure.
(a)
Put the airplane back to its usual condition.
S 835-096
(10)
If needed, do the subsequent fairing adjustment procedure.
N.
Adjust The Door Fairing For The Shock Strut (Fig. 507).
S 825-203
(1) Table 504 (for Fig. 507) shows expanded tolerances which were permitted at delivery. Use these tolerances only if you cannot get the usual tolerances.
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747-400
MAINTENANCE MANUAL
Wing Gear Shock Strut Door Fairing Adjustment
Figure 507 (Sheet 1)
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747-400
MAINTENANCE MANUAL
INCH
mm)
NOTE:
INBD
SHOWN YOU CAN CHANGE THE
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