747-400 MAINTENANCE MANUAL
2.
 ROTARY
ACTUATOR

3.
 DOOR HINGE

SEE D SEE A
1. ROTARY ACTUATOR LINK
4. SIDE CARGO DOOR
FWD
5. HINGE PIN 9.61 INCHES
LONG X 0.56 INCH

8. HINGE PIN 26.11 INCHES DIAMETER (APROXIMATE) LONG X 0.43 INCH7. HINGE PIN (ONE PIN 10.90
DIAMETER (APPROXIMATE) LONG X 0.43 INCH
INCHES LONG X 0.37 INCH6. HINGE PIN 18.03 INCHES
DIAMETER, APROXIMATE IN
DIAMETER (APPROXIMATE)

EACH HINGE SEGMENT)
9. HINGE
(7 LOCATIONS)
FAIRING
SEE C DOOR
4. GARGO
HINGE SEGMENT FAIRING (13 LOCATIONS) 10. HINGE
HINGE PIN INSTALLATION
SEE B FWD
A
Side Cargo Door Removal/Installation
Figure 401 (Sheet 1)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400
MAINTENANCE MANUAL

19. BOLT
15.
 WASHER

16.
 WASHER

13. NUT
18. BOLT
15.
 WASHER

16.
 WASHER

13. NUT
11.
 BOLT

12.
 WASHER

13.
 NUT

10. FORWARD HINGE FAIRING
14.
 BOLT

15.
 WASHER

13. NUT
20.
 BOLT

21.
 WASHER

22.
 NUT 23. BOLT

24.
 WASHER

25.
 WASHER

22. NUT
17. BOLT 15. WASHER 16. WASHER 13. NUT 
B 
26. BOLT 21. WASHER 22. NUT 
9. AFT HINGE FAIRING 
2. ROTARY ACTUATOR  C 

31. ACTUATOR LINK ASSEMBLY
27.
 BOLT

28.
 BUSHING

29.
 WASHER

30.
 NUT

D
Side Cargo Door Removal/Installation
Figure 401 (Sheet 2)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (b)  P715 Aux/Ext No. 2 Power Center
 1) SIDE CARGO DOOR PWR

 S 034-004
 (3)  
Disconnect the rotary actuator links (1) from the fittings on the door (Fig. 401).

 S 034-005

 (4)  
Disconnect the electrical connectors D4727J and D4732J and the ground wires from above the door at the aft end.

 S 494-037

 (5)  
Install the sling on the cargo door (Fig. 402).

 S 494-038

 (6)  
Attach the sling to the crane.

 S 584-006

 (7)  
Open the door manually until the hooks are fully released, then open the door to approximately 20-degrees.

 S 864-039

 (8)  
Put the crane in a position to release the load from the door hinges.

 S 034-007

 (9)  
Remove the hinge pins (3) as follows:

 (a)  
Remove the hinge fairings (10).

 (b)  
Install the screw hinge puller into the threaded hole in the pin to remove the two end hinge pins.

 (c)  
Push the pins out of the hinges with a drift.

 NOTE: Push the pins in the forward direction from the aft end.
____ The hinge pin is 12 pins of different lengths.
 S 024-008
 (10)
 Remove the door from the airplane.  Put it on the transportation dolly.

 (11)
 Install a safety barrier across the door opening.

 S 494-009
 TASK 52-32-01-404-010
 3. Side Cargo Door - Installation
______________________________
 A. Special Tools and Equipment
 (1)  2OHME65B17601-1, Sling - Side Cargo Door
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