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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
10R
SEE C 11 SEE D
9R
SEE B
10L
SEE C
9L SEE B
7R 8R
8L LATCH FITTING (TYPICAL)
SEE A6R
5R 7L
6L
4R
5L 3R
4L 2R
3L
1R
2L
1L
BOLT TORQUES
BOLT DIA (INCHES) TORQUE (POUND-INCHES)
____NOTE: SEE A FOR AN EXAMPLE FOR 3/8
450-500 INSTALLATION OF FITTINGS
7/16 740-840
1L THRU 8L AND 1R THRU 8R.
1/2 1150-1300
FITTINGS ON DOOR NOT SHOWN.
FITTING ATTACHMENT BOLT
9/16 1600-1800
HOLES ARE OVERSIZE.
Nose Cargo Door Portal Latch Fitting Installation
Figure 401 (Sheet 1)
B26914
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
LAMINATED SHIM SERRATED PLATES
BODY STRUCTURE
ATTACHMENT BOLTS
FWD
A
BODY STRUCTURE
LAMINATED SHIM
ATTACHMENT BOLT
ATTACHMENT SERRATED PLATES BOLTS
B
Nose Cargo Door Portal Latch Fitting Installation Figure 401 (Sheet 2)
B26915
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
Nose Cargo Door Portal Latch Fitting Installation
Figure 401 (Sheet 3)
B26917
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A
747-400 MAINTENANCE MANUAL
D. Actuator-Pin Portal Latch Fitting Removal (Fittigns 1-8 L&R)
S 934-006
(1)
For the latch fittings 7L and 7R, Make a mark for the latch fitting location for installation.
(a)
Remove the latch fitting and actuator together as an assembly (AMM 52-31-05/401).
NOTE: The terminal fitting on the linear actuator interferes
____ with the removal of the latch actuators 7L & 7R. Therefore, the latch actuator and latch fitting must be removed together.
S 014-007
(2)
For all except the latch actuator 7L & 7R,
Remove the latch actuator (AMM 52-31-05/401).
S 034-008
(3)
Remove the latch indication switch (Ref 52-31-21/401).
S 034-009
(4)
Loosen nut and carefully remove the attachment bolts and fitting to avoid damage to the protective coating.
S 034-010
(5)
Remove the serrated plate and the switch bracket from the latch fitting for installation.
E.
Fixed-Pin Portal Latch Fitting Removal (Fittings 9-10 L&R and 11)
S 934-011
(1) Make a location marks for the serrated plates between the latch fitting and the body structure for installation.
NOTE: If there is no location marks, it is difficult to correctly
____ install the serrated plates between the latch fiting and body structure. On the latch fittings 10L & 10R, there is no serrated plates between the latch fitting and body structure.
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