52-31-00
 ALL  ú ú B07 Page 409 ú Mar 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 (b) (c)  Make sure the door moves smoothly.Make sure the door moves upward to or near the up-latched position.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 52-31-00
 ALL  ú ú B04 Page 410 ú Mar 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
FLOOR BEAM
SNUBBER
DOOR FRAME
HINGE ARMS (2 LOCATIONS) ACCESS PANEL
1. BOLT  2. HINGE BOLT (8 LOCATIONS)
FWD LATCH MECHANISM
INBD SEEA
DOOR CENTERING ROLLER (2 LOCATIONS)
SEEC
CONTROL ROD DOOR STOP ADJUSTMENT (12 LOCATIONS) ACCESS
SEE D
CARGO COMPARTMENT DOOR(THE BALANCE MECHANISM IS NOT SHOWN)
INTERNAL LATCH HANDLE
DOOR FRAME 
DOOR LATCH  EXTERNAL 
LATCH HANDLE 
SEE B 
CONTROL 
ROD 
LOWER ROD END  ROLLER 
FITTING 
ROLLER  SEE  F 
ROLLER  ARM  LAMINATED SHIM 
FITTING  (2 LOCATIONS) 
TORQUE TUBE 
BEARING HOUSING 
(2 LOCATIONS)  DOOR 
TORQUE TUBE  FRAME 

LATCH MECHANISM
ROLLER ARM
A
SERRATED PLATE (2 LOCATIONS)
Cargo Compartment Door Figure 401 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 52-31-00
 ALL  ú ú B02 Page 411 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL

DOOR CENTERING ROLLER
C
Cargo Compartment Door Figure 401 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 52-31-00
 ALL  ú ú B01 Page 412 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
DOOR STOP PIN DOOR STOP PIN

DOOR STOP FITTING B-B
Cargo Compartment Door
Figure 401 (Sheet 3)

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 52-31-00
 ALL  ú ú B02 Page 413 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
LATCH CONTROL ROD

LOWER ROD END

LOCKWIRE WRENCHING HOLE HOLE

LATCH CONTROL ROD

IF YOU INSTALL THE LOCKWIRE THROUGH THE WRENCHING HOLE,
THE ADJUSTMENT OF THE DOOR CAN CHANGE AND CAUSE
THE DOOR TO UNLATCH.

IF THERE IS NO LOCKWIRE HOLE, DRILL 0.070 INCH DIAMETER HOLE
THRU ROD END TO MATCH EXISTING LOCKWIRE HOLE IN ROD.

SECURE ROD END AS SHOWN IN
WITH LOCKWIRE MS20995C32 USING

DOUBLE TWIST METHOD. (REF OVERHAUL MANUAL, SUBJECT 20-50-02)
Cargo Compartment Door Figure 401 (Sheet 4)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 52-31-00
 ALL  ú ú B01 Page 414 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 
737-300/400/500MAINTENANCE MANUAL 
BALANCE 
MECHANISM 
CABLE  CABLE 
CLIP 
SEE  B 
COUNTERBALANCE 
DOOR LANYARD GUIDE PIN 
PULLEY  C  1 
COUNTERBALANCE 
ASSEMBLY  SLEEVE  WASHER 
　
中國航空網(wǎng) m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：737-300 400 500 AMM 飛機(jī)維護(hù)手冊 艙門 DOORS 1(104)