(f)
Make sure there is no force on the bolt.
(g)
Do the adjustment again, if it is necessary to get the zero force (plus-or-minus 3/4-turn of the rod end bearing will align the rod end).
S 724-024
(4)
Do a functional test of the handle mechanism (Ref 52-11-13/501).
H.
Put the Airplane Back to Its Serviceable Condition
S 414-026
(1)
Install the access panel (1) on the hinge torque tube and the cam access covers (3) on the door structure.
(2)
Install the entry door lining (Ref 52-11-02/401).
S 414-028
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A
747-400 MAINTENANCE MANUAL
MAIN ENTRY DOOR HANDLE MECHANISM ASSEMBLY - ADJUSTMENT/TEST
___________________________________________________________
1. General_______
A. This procedure contains two tasks. The first is the test of the clutch engagement on the external handle. The second is the adjustment of the clutch engagement on the external handle.
B. The test will help you to find the worn effects on the clutch engagement after the handle mechanism replacement. If there is a problem with the external handle when you operate, you can use this procedure to adjust the handle mechanism.
TASK 52-11-13-705-001
2. Handle Mechanism Assembly Test (Fig. 501)______________________________
A. Access
(1)
Location Zone
211 Main Deck, Nose to First Door, LH
271 Main Deck, Sta 2040 to Sta 2360, LH
(2)
Access Panel
831L Door - No. 1 Main Entry, LH
835L Door - No. 5 Main Entry, LH
B.
Procedure
S 725-002
(1)
Do a test for the clutch engagement.
(a)
Do a visual check to make sure the bearing that holds the outer shaft (27) does not move in the cam (25).
(b)
Pull and turn the external handles (2, 28) until one of the bearings (3) moves on the edge of the cam (25).
(c)
Measure the distance between the outboard end of the center shaft (30) and the plane of the door outer contour.
(d)
Put the external handles (2, 28) in their positions.
(e)
Turn the internal handle a minimum of 40 degrees to prevent the clutch collar (15) engages with the slot on the center shaft (30).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
SEE A HANDLE MECHANISM A HANDLES BASKET CAM EXTERNAL
A
FWD
Main Entry Door Handle Mechanism Adjustment Figure 501 (Sheet 1)
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A
747-400 MAINTENANCE MANUAL
3. CAM FOLLOWER BEARING
SEE B 2. EXTERNAL HANDLE
1. PEDESTAL
4. COVERPLATE
BOLT (4 LOCATIONS)
BOLT WASHER (3 LOCATIONS)
WASHER BEARING
BOLT RETAINER
(3 LOCATIONS) (3 LOCATIONS) SPACER
6. PEDESTAL
24. PACKING SEAL WASHER
SEAL (3 LOCATIONS)
30. CENTER SHAFT
NUT
22. LAMINATED PACKING
SHIM
27. OUTER WASHER
21. SPANNER SHAFT NUT SPACER
26. LAMINATED SHIM
5. DANGLER 7. THRUST COLLAR
23. BEARING 25. BASKET CAM 28. EXTERNAL HANDLE 29. SLIDE STUD
SPACER 8. YOKE
9. SPRING DEPRESSOR20. HOUSING
19. LATCH CRANK 10. COCKING CAM FOLLOWER BEARING CRANK
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