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A
747-400
MAINTENANCE MANUAL
(b)
Turn each adjustment bolt of the forward doorstop one full turn away from the door.
(c)
Close the door with your hand to touch the forward doorstop.
(d)
Make sure the flushness of the door and the fuselage is in the tolerances shows (View A-A, Fig. 202).
(e)
With the door held against the forward doorstop, make sure that the bolt fits easily through operator rod and the door (View E, Fig. 201).
(f)
Adjust the operator rod if it is necessary.
(g)
Turn the adjustment bolt one full turn towards the door.
(h)
Install the spring wire clip.
(i)
Do these steps again for the other door.
S 432-015
(9)
Connect the operator rods to the doors:
(a)
Lubricate the bolt shanks and the threads with grease.
(b)
Install the bolt (21), bushing (20), washer, and nut (View E, Fig. 201).
S 432-016
(10) Connect the door-operated sequence valve rod to the door with the bushing (25), bolt (23), washers (24 and 26), and nut (27) (View F, Fig. 201).
TASK 32-22-01-802-017
4. Forward Nose Wheel Well Door Adjustment (Fig. 202)
_______________________________________
A. General
(1) Table 201 shows expanded tolerances which were permitted at delivery. Use these tolerances only if you cannot get the usual tolerances.
~............................................................................... | TABLE 201 | | FORWARD NOSE WHEEL WELL DOOR FLUSHNESS AND CLEARANCE DEVIATIONS | ................................................................................. | | | TYPE OF | | | | AIRPLANE | ZONE | MISMATCH | FLUSHNESS | CLEARANCE |
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A 747-400 MAINTENANCE MANUAL
DOOR ACTUATOR
BELLCRANK SUPPORT BELLCRANK
OPERATOR ROD
FWD
SEE A HANDLE RELEASE GROUND
INSTALLATION FAIRING DOOR FLAPPER B
H B A
C A
G F D E D F E H C
G A
Figure 202 (Sheet 1) Forward Nose Wheel Well Door Adjustment
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0.12 INCH (OUTSIDE) 0.08 INCH
C-C D-D
Forward Nose Wheel Well Door Adjustment Figure 202 (Sheet 2)
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MAINTENANCE MANUAL
FORWARD DOOR
Forward Nose Wheel Well Door Adjustment
Figure 202 (Sheet 3)
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~............................................................................... | TABLE 201 | | FORWARD NOSE WHEEL WELL DOOR FLUSHNESS AND CLEARANCE DEVIATIONS | ................................................................................. | | | TYPE OF | | | | AIRPLANE | ZONE | MISMATCH | FLUSHNESS | CLEARANCE | 2............…........….............…..................…........................1
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