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A
747-400
MAINTENANCE MANUAL
D-D
Portal Latch Fitting Adjustment Figure 503 (Sheet 2)
B26820
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MAINTENANCE MANUAL
NYLON RUB STRIP (ON SUPPORT BEAM) LINEAR ACTUATOR (2 LOCATIONS)
DRIVE UNIT SEE A FLEXIBLE DRIVE SHAFT SUPPORT BEAM DRIVE COUPLING FWD LINEAR ACTUATOR AFT END SEE B
CONNECTOR ELECTRICAL AC POWER
DC POWER CONNECTOR ELECTRICAL
DRIVE UNIT
DRIVE SHAFT FLEXIBLE
LINEAR ACTUATOR AFT END A FWD SHAFT COUPLING FLEXIBLE DRIVE (2 LOCATIONS)
Linear Actuator and Drive Unit Adjustment
Figure 504 (Sheet 1)
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B26847
A
747-400
MAINTENANCE MANUAL
MAKES AN OPERLAP 0.25 TO 0.75 INCH
DOOR IN THE CLOSED AND LATCHED POSITION
B
Linear Actuator and Drive Unit Adjustment
Figure 504 (Sheet 2)
B26852
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MAINTENANCE MANUAL
Adjustable Fairing Skin Adjustment
Figure 505
K61997
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A
747-400 MAINTENANCE MANUAL HINGE A
SEAL HINGE ACCESS CLEARANCE DOOR
A
DOOR
DIMENSION A 1
BODY SKIN
SEE A
ADJUSTABLE ROD DOOR STOP
1
LOCKNUT LOCKWIRE
BRACKET (ATTACHED TO AIRPLANE STRUCTURE)
(DOOR IN THE OPEN POSITION)
LIFT THE DOOR WITH
A-A
CLEARANCE
20 TO 30 POUNDS FORCE
0.15 |0.03 INCH
(38.1 |7.76 mm)
DOOR DOOR
0.01 INCH +0.06/-0.03 INCH
2
(0.25 mm)
(+1.52/-0.76 mm) MAXIMUM
FLUSHNESS
PRE-LOADING REQUIREMENTS FIT AND FAIR REQUIREMENTS
(DOOR IS IN THE CLOSED POSITION)
(DOOR IS IN THE CLOSED POSITION) A
A
1 ONE TURN OF THE ADJUSTABLE ROD CHANGES DIMENSION APPROXIMATELY 0.5 INCH (12.7 mm).
3 FOR FAIR TOLERANCE A NEGATIVE VALUE IS INSET TO THE FUSELAGE STRUCTURE. A 2
MAKE SURE THE DOOR LIFTS NOT MORE THAN POSITIVE VALUE IS OUTBOARD FROM THE
0.01 INCH (0.25 mm) FROM DOOR STOP WITH FUSELAGE STRUCTURE.
A 20 TO 30 POUND FORCE.
Hinge Access Clearance Door Adjustment
Figure 506
C16667
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