DRIVE UNIT FWD DRIVE SHAFT FLEXIBLE COUPLING DRIVE SHAFT LOWER GIMBAL FITTING ACTUATOR LINEAR ACTUATOR AFT END FITTING CSEE
LINEAR ACTUATOR
1 THE RIGHT LINEAR ACTUATOR IS SHOWN, THE LEFT LINEAR ACTUATOR IS OPPOSITE. B 1
Figure 401 (Sheet 1) Nose Cargo Door Linear Actuator Installation
B26887
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
Nose Cargo Door Linear Actuator Installation
Figure 401 (Sheet 2)
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C14350
A
747-400
MAINTENANCE MANUAL
LINEAR ACTUATOR (2 LOCATIONS)
FWD COUPLING DRIVE
SHAFT DRIVE FLEXIBLE
SEE A B
MANUAL DRIVE PORT
AFT END OF
ACTUATOR SHAFT
AFT END
FITTING
RIG PIN ND-2 RIG HOLE
RIG POSITION INSPECTION HOLE
A
AFT END OF ACTUATOR MAKES
AN OVERLAP 0.25 TO 0.75 INCH
ON THE INSPECTION HOLE
DOOR LATCHED POSITION
B
Nose Cargo Door Linear Actuator Installation Figure 402
B26889
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A
747-400
MAINTENANCE MANUAL
S 034-007
(6)
Disconnect the aft end fitting of the linear actuator from support structure (Detail C).
(a)
Remove cross bolt and forward pin.
(b)
Disconnect the aft end fitting of the linear actuator from support structure.
S 034-008
(7)
Remove the upper gimbal fitting from structure (Detail D).
(a)
Remove bolt, washer and nut (3 locations) and remove the upper gimbal fitting.
S 024-009
(8) Remove the linear actuator.
TASK 52-31-02-404-002
3. Nose Cargo Door Linear Actuator Installation (Fig. 401, Fig. 402)
____________________________________________
A. General
(1)
Do not operate the door electrically to open or close the door before the linear actuators are correctly adjusted.
B.
Standard Tools and Equipment
(1)
Rig Pin - ND-2, 0.311 (+0.000/-0.002)-inch diameter, 2 inches long (2 required)
C.
Parts
~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | | | | TBD | | | 2 | | | | TBD | | | 3 | | | | TBD | | | 4 | | | | TBD | | | 5 | | | | TBD | | | 6 | | | | TBD | | | 7 | | | | TBD | | | 8 | | | | TBD | | | 9 | | | | TBD | | | 10 | | | | TBD | 2......…........…...................................…..........…......…........1
D. References
(1)
24-22-00/201, Manual Control
(2)
52-31-00/201, Nose Cargo Door System
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