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A
CHECK
A CHECK OF THE LATCH HANDLE
1.
CLOSE AND LATCH THE DOOR.
2.
VISUALLY CHECK THE POSITION OF EACH LATCH ROLLER AS IT ENTERS THE FITTING.
3.
SEE FIG. 514 FOR THE ADJUSTMENT.
NOTE:____ THIS ADJUSTMENT CHANGES
THE FORCE TO RETRACT
THE EXTERNAL HANDLE.
A CHECK OF THE EXTERNAL HANDLE
1.
CLOSE AND LATCH THE DOOR.
2.
PULL THE EXTERNAL HANDLE OUT.
3.
USE A SPRING SCALE TO PUSH THE HANDLE TO THE RETRACTED POSITION.
4.
MEASURE THE FORCE TO RETRACT THE EXTERNAL HANDLE.
5.
SEE FIG. 514 FOR THE ADJUSTMENT.
NOTE:THIS ADJUSTMENT CHANGES THE LATCH ROLLER PATH.
737-300/400/500MAINTENANCE MANUAL
NECESSARY CONDITION
ROLLER POSITION WHEN THE LATCH ROD STARTS TO TURN
PATH OF
LATCH
ROLLER
10.
EACH LATCH ROLLER MUST CLEAR THE ENTRY LIP OF ITS LATCH FITTING.
11.
EACH LATCH ROLLER MUST BE IN ITS LATCH FITTING WHEN THE LATCH ROD STARTS TO TURN.
RETRACTION FORCE
12. THE FORCE TO RETRACT THE EXTERNAL HANDLE MUST BE LESS THAN 20 POUNDS.
Latch Handle Check Figure 506
B58065
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
CHECK NECESSARY CONDITION
A CHECK OF LATCH ROLLER CLEARANCE
1.
OPEN THE DOOR.
2.
PUT CLAY IN THE BOTTOM OF EACH LATCH FITTING.
ROLLER3. CLOSE AND LATCH THE DOOR.
5. OPEN THE DOOR.
5.
MEASURE THE DEPTH OF THE CLAY TO FIND THE ROLLER CLEARANCE.
6.
SEE FIG. 515 FOR THE
INCH CLEARANCEADJUSTMENT.
0.04
13. EACH LATCH ROLLER MUST BE
0.04 TO 0.28 INCH FROM THE BOTTOM OF THE LATCH FITTING.
ROUND STOP PAD
0.30 INCH DIAMETER TARGET CENTERLINE
A CHECK OF THE STOP PINS
STOP PAD
1.
OPEN THE DOOR.
2.
PUT CLAY ON EACH STOP PAD.
3.
CLOSE AND LATCH THE DOOR.
14. THE CENTERLINE OF EACH STOP PIN
4. OPEN THE DOOR.
MUST BE IN THE TARGET ON THE PAD.
5.
LOOK AT THE CLAY TO DO A CHECK OF THE STOP PIN LOCATION ON THE PAD.
6.
MEASURE THE DEPTH OF THE CLAY TO DO A CHECK OF THE STOP PIN DISTANCE FROM
STOP FITTING
THE PAD.
7.
SEE FIG. 511 FOR STOP PIN LOCATION ADJUSTMENT.
8.
SEE FIG. 516 FOR STOP PIN CLEARANCE ADJUSTMENT. LOCKSPRING
STOP PIN
STOP PAD
0.030
AND THE STOP PAD. BECAUSE OF DOOR OVER TRAVEL, THE 15. EACH STOP PIN MUST BE
0.020 0.015 TO 0.030 INCH FROM
MEASURED THICKNESS OF THE CLAY SHOULD BE INCH.
0.000 ITS STOP PAD.
Roller Clearance and Stop Pin Check Figure 507
B48251
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A
737-300/400/500MAINTENANCE MANUAL
FUSELAGE DOOR EXTERNAL EXTERNAL
SHIMS
END PLAY
2. EACH LATCH ROLLER MUST ENGAGE ITS LATCH FITTING BY 0.25 INCH OR MORE.
Latch Rod Adjustment
Figure 508
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B48278
A 737-300/400/500MAINTENANCE MANUAL
DOOR EXTERNAL
RIG PIN INSTALLATION
Latch Crank Overcenter Ajustment 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737-300 400 500 AMM 飞机维护手册 舱门 DOORS 1(129)
