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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
B48874
A 737-300/400/500MAINTENANCE MANUAL 
LONGER ARM 
FWD 
INBD
TOP GUIDE ARM SEE A SHORTER ARM (TOP VIEW) DOOR ADJUSTMENT  KEEPER  1  CHECK NUT 
TOP GUIDE ARM 
BEARING ROD END 
1  BEHIND THE KEEPER ADJUSTMENT NUT IS  HINGE 
(ON FUSELAGE) HINGE  DOOR 
(DOOR OPEN) TOP HINGE GUIDE ARM 
___________________ 6. ATTACH THE KEEPER ON THE GUIDE ARM. 5. TIGHTEN THE CHECK NUT. 4. TURN THE ADJUSTMENT NUT TO CHANGE THE LENGTH OF THE GUIDE ARM: 3. LOOSEN THE CHECK NUT. 2. REMOVE THE KEEPER FROM THE END OF THE GUIDE ARM. b. MAKE THE ARM LONGER TO MOVE THE AFT EDGE OF THE DOOR OUTBOARD. a. MAKE THE ARM SHORTER TO MOVE THE AFT EDGE OF THE DOOR INBOARD. PARALLEL ADJUSTMENT 1. PARTIALLY OPEN THE DOOR. 
___________________NECESSARY CONDITION: THEIR LATCH FITTINGS AT THE SAME TIME. THE FORWARD AND AFT LATCH ROLLERS MUST ENTER 
Figure 510 Parallel Adjustment 

B48253
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500
MAINTENANCE MANUAL

___________________VERTICAL ADJUSTMENT
1. REMOVE THE COTTER PINS FROM THE ADJUSTMENT  TOP NUT 
NUTS ON THE VERTICAL TORQUE TUBE. 
2. LOOSEN THE TOP NUT IF YOU WILL ADJUST THE 
DOOR IN THE UP DIRECTION.
3. TURN THE BOTTOM ADJUSTMENT NUT TO MOVE THE 
DOOR UP OR DOWN UNTIL THE DOOR IS IN THE
 CORRECT POSITION VERTICALLY.  TORQUE 
____NOTE: THE GATE CLEARANCE WILL CHANGE  TUBE 
APPROXIMATELY 0.02 INCH FOR EVERY 
NOTCH YOU TURN THE NUT (0.04 INCH
FOR 1/4 OF A TURN). 
FOR A LARGE VERTICAL ADJUSTMENT, REMOVE THE THREE BOLTS AND THE  PUSH ROD 
CENTERING GUIDE ON THE AFT EDGE 
CAUTION:_______  OF THE DOOR. CAUSE DAMAGE TO THE BEARING IN THE DO NOT OVERTIGHTEN THE NUT. YOU CAN  NUT ADJUSTMENT  HANDLE INTERNAL 
HANDLE MECHANISM. 
4. TIGHTEN THE TOP NUT.  FWD  INBD 
5. INSTALL THE COTTER PINS IN THE NUTS. 6. INSTALL THE CENTERING GUIDE IF YOU REMOVED IT.  VERTICAL ADJUSTMENT NUTS 
7. MAKE SURE THE CENTERING GUIDE TRACK CLEARANCE
 IS CORRECT (SEE FIG. 517). 
TOP GATE 
0.06 TO 0.18 INCH CLEARANCE  2 
____________________NECESSARY CONDITIONS:  0.13 TO 0.28 INCH CLEARANCE  3 
1. THE GATE CLEARANCE MUST HAVE THE NECESSARY 
DIMENSIONS. 
2. EACH DOOR STOP PIN MUST ALIGN WITH THE
 STOP PAD TARGET. 

ROUND STOP PAD
0.30 INCH DIAMETER TARGET (IN THE CENTER OF THE STOP PAD)
1
STOP PIN LOCATION
BOTTOM GATE 1 THE CENTERLINE OF THE STOP PIN
0.06 TO 0.18 INCH MUST BE IN THE SHADED AREA.
CLEARANCE 2 FORWARD DOOR
GATE CLEARANCE
3 AFT DOOR
Vertical Adjustment Figure 511
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
LATCH FITTING
(4 LOCATIONS)

SEEA
DOOR FLUSHNESS
ADJUSTMENT
FWD
 INBD
DOOR FLUSHNESS ADJUSTMENT
DOOR FLUSHNESS ADJUSTMENT
1.
 MOVE THE STOP PINS THAT ARE NEAR THE
FITTING INBOARD UNTIL THEY WILL NOT
INTERFERE WITH THE ADJUSTMENT.

2.
 LATCH FITTINGS WITH A DOOR WARNING SWITCH:  REMOVE THE SWITCH COVER AND LOOSEN THE BOLT THAT HOLDS THE SWITCH IN POSITION.

3.
 LOOSEN THE THREE FASTENERS ON THE LATCH
 FITTING.
　
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