UPPER GATE PUSHROD
UPPER GATE SEE F LATCH ROLLER AND LATCH FITTING
SEE CWIRE BUNDLE 2. COUPLING RETRACTION BOLT
MECHANISM STOP PIN
SEE J HINGE ARM SEE D
SEAR PIN
SEE H
DOOR TORQUE TUBE HINGECENTERING SEE B FWDGUIDE
SEE E HOLD-OPEN
DOOR TORQUE TUBE LATCH
HINGE COVER  B
SEE G
GUIDE ARM
LOWER GATE SEE I PUSHROD
LOWER GATE HINGE COVER FWD
MAIN ENTRY DOOR
A
Main Entry Door No. 1 Adjustment Figure 501 (Sheet 1)
D12210
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL

A
UP
DIAMETERON BODY

DOOR STOP PIN
B-B
ALIGNMENT C-C
Main Entry Door No. 1 Adjustment Figure 501 (Sheet 2)
D12226
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A
747-400
MAINTENANCE MANUAL

0.02 INCH CLEARANCE MINIMUM (INTERFERENCE ALLOWED AT UPPER SURFACE)
D-D
MAKE SURE THE OVERCENTER DIMENSION ON THE UPPER GATE IS EQUAL TO OR GREATER THAN THE OVERCENTER DIMENSION ON THE LOWER GATE.
Main Entry Door No. 1 Adjustment
Figure 501 (Sheet 3)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
D12293
A

747-400 
MAINTENANCE MANUAL 
UPPER 
HINGE ARM  ROLLER  BODY 
RETAINER BOLT  TORQUE 
3  TUBE 
HINGE 
ARM  E 
ADJUSTING 
F  FITTING  PLATE CAM 
SEAR PIN 
GUIDE ARM 
TRIGGER  F GUIDE  ROLLER PIN 
E  ARM 
GUIDE ARM 
SUPPORT 
FITTING 
DOOR  GUIDE ARM 
HINGE 
SEAR PIN ENGAGEMENT  HOUSING  I 
H 
9.61 INCHES9.55 
GUIDE ARM 
Y  ROLLER PIN GUIDE ARM  ELBOW PIN  SLEEVE  4  SUPPORT FITTING 
WASHERS  GUIDE ARM  LOCKNUT 

SPACERS BUSHING
ADJUSTING Y CAM PLATE FITTING
E-E
SEAR PIN ENGAGES TRIGGER 0.12 INCH MINIMUM (WHEN THE MODE SELECTOR LEVER IS IN THE AUTOMATIC POSITION)
HINGE ARM
SEAR PIN
SEAR PIN HOUSING0.05 INCH 3 MAKE SURE THE CLEARANCE ON THE HEAD OF THE MINIMUM
ROLLER RETAINER BOLT, WHEN YOU OPEN AND CLOSE THE DOOR, IS 0.15 INCH MINIMUM WITH THE BODY TRIGGER SKIN. CUT AND FINISH AS NECESSARY PER OPERATOR STANDARD PROCEDURE TO GET THE CORRECT CLEARANCE.
4 SHRINK SLEEVE NOT NECESSARY
F-F
Main Entry Door No. 1 Adjustment Figure 501 (Sheet 4)
D12297
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400
MAINTENANCE MANUAL

DOOR 1 
UPPER GATE 
DOOR STOP 
(EXAMPLE) 
HANDLE 
MECHANISM  RULER 

LOWER GATE
FWD DOOR 1 (EXAMPLE)
Main Entry Door No. 1 Adjustment
Figure 501 (Sheet 5)

F60249
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