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 (3)  S 643-004Lubricate the bearings in the handle mechanism for the door (Fig. 301).
 (4)  S 413-005Install the access panel on the inner surface of the door.
 (5)  S 413-006Install the lining on the door (Ref 52-11-31/401).

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
GATE PUSHRODS
SEE A

GATE HINGE SEE B
STOP ROD PUSHRODS
SEE N

LATCH TORQUE
TUBE BEARING

SEE C
LATCH CRANK SEE E
ACTUATING
PUSHROD ENDS

HINGE GUIDE PLATE
SEE D
SEE F DOOR COUNTERBALANCE (TOP)
INTERNAL HANDLE MECHANISM
SEE G SEE I
GUIDE ARM
EXTERNAL SEE H HANDLE MECHANISM SEE J FORWARD SNUBBER END
SEE K
DOOR COUNTERBALANCE (BOTTOM)
ACTUATING
PUSHROD ENDS

SEE M
SEE D

LOWER HINGE ASSEMBLY STOP ROD
SEE L
PUSHRODS
LATCH TORQUE

SEE N TUBE BEARING SEE C
GATE PUSHRODS SEE A
GATE HINGE SEE B
Forward Entry Door Lubrication
Figure 301 (Sheet 1)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL

GATE HINGE
THE LOWER CENTER PUSHROD IS SHOWN. THE OTHER FIVE GATE PUSHRODS ON THE DOOR ARE THE SAME
1 POINT
THE UPPER GATE HINGE IS SHOWN. THE LOWER GATE HINGE IS THE SAME

Forward Entry Door Lubrication Figure 301 (Sheet 2)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL

LATCH TORQUE TUBE BEARING

2 POINTS

3

ACTUATING PUSHROD ENDS

PUSHROD ENDS ON THE DOOR Forward Entry Door Lubrication Figure 301 (Sheet 3)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
LATCH CRANK 
BEARING 
FLUSH 
MIL-G-23827 
(1 LOCATION) 
LATCH CRANK 
1 POINT 
E  5  5A 
GUIDE ARM 
ROLLER PIN 
MIL-G-23827 
(2 LOCATIONS) 

LATCH CRANK 
BEARING 
FLUSH 
MIL-G-23827 
(1 LOCATION) 
LATCH ROLLER 
FLUSH 
MIL-G-23827 
(1 LOCATION) 
LATCH CRANK AND ROLLER 
2 POINTS 
E  5  5B 

GUIDE PLATES
MIL-G-23827 (2 LOCATIONS)
____ THE HOLD-OPEN MECHANISMNOTE: IS NOT SHOWN.
HINGE GUIDE PLATE 
4 POINTS 
5A 5B 5  Figure 301 (Sheet 4) Forward Entry Door Lubrication F AIRPLANE WITH A LUBRICATION FITTING. AIRPLANES WITH A SELF-LUBRICATING ROLLER. THERE ARE FOUR LATCH CRANKS ON THE DOOR. 

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A 737-300/400/500MAINTENANCE MANUAL
　
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