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747-400 MAINTENANCE MANUAL
S 825-011
(7) If the position of the cam follower bearing is satisfactory, go to
the step (10) to continue the adjustment.
S 825-034
(8) If the position of the bearing (3) is not correct, adjust the
shim (26):
NOTE:____ You can use a clay model to find the correct position or
clearance of the bearing.
S 225-032
(9)
Find the necessary thickness of the shim (26):
(a)
Measure the clearance between the bearing (3) and the bottom of the slot in the cam (3) with the handles in the closed positions.
S 015-033
(10)
Disassemble the external handles and the center shaft to get access to the shim (26).
S 415-035
(11)
Temporarily install the shaft mechanism in the handle housing with the correct shim thickness (Ref 52-11-13/401).
NOTE: It is not necessary to install the support fitting (17).
____
S 865-014
(12)
Fully extend the external handles.
(a)
Make sure the outboard end of the center shaft (30) moves in a minimum of 0.55 inch.
S 825-015
(13)
If the center shaft movement is not satisfactory, do these steps to adjust the shim (26):
(a)
Remove the handles and the center shaft mechanism to get access to the shim (26) .
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747-400 MAINTENANCE MANUAL
(b) Decrease the shim (26), if it is necessary.
(c) Temporarily install the center shaft mechanism.
NOTE:____ Do not include the support fitting.
S 225-016
(14)
Make sure the external handle is fully extended.
(a)
Make sure the clearance between the cam follower bearing (3) and the edge of the basket cam (25) is at least 0.005 inch minimum (Fig. 501, Section A-A).
NOTE: Use washers and shim as required to keep the mounting
____ screws square to the external handle and the cam follower bearing support. Adjust the shim and washers to achieve at least 0.005 inch minimum gap as shown in (Fig. 501, Section A-A).
Make sure the screw ends are flush with the cam follower bearing support within +/- 0.02.
S 225-018
(15)
Put the external handles in the closed positions.
(a)
Make sure the flushness between the handle and the door outer contour is as shown in View A-A, Fig. 502.
NOTE: Ignore the incorrect fairing caused by the incorrect
____ adjustment between the latch assembly and the handle.
S 015-019
(16)
If the flushness is not satisfactory, remove the handles and the center shaft, include the basket cam from the housing (Ref 52-11-13/401).
S 825-020
(17)
Adjust the shim thickness (22) to get the correct handle flushness.
S 415-021
(18)
Temporarily install the cam (25) and the center shaft mechanism, with the correct thickness shim (22) (Ref 52-11-13/401).
NOTE: Do not install the support fitting.
____
S 015-022
(19) Disassemble the center shaft mechanism as necessary to get access to the adjusted shims (22, 26).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
LATCH
ASSEMBLY
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