a)  Apply sealant to fill the cracks or replace sealant removed for check (no more steps are necessary).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-21-01
 ALL  ú ú 02 Page 314 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400 MAINTENANCE MANUAL 
SEE  SEE A  B  SEE STRUT UPPER JURY  F 
SEE  D 
RETRACT ACTUATOR FLUSH 
SEE  C  STRUT DRAG UPPER  SEE  E  SHOCK STRUT  (1 LOCATION) BMS 3-33 

1 POINT 
SUPPORT STRUCTURE 
ZERK  JURY STRUT 
BMS 3-33  SUPPORT STRUCTURE 
(1 LOCATION) 

1 POINT
A
Body Landing Gear Upper End Lubrication
Figure 306 (Sheet 1)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-21-01
 ALL  ú ú 01 Page 315 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

5 POINTS

ONE MORE LUBE POINT IS ON THE OPPOSITE SIDE (NOT SHOWN).

Body Landing Gear Upper End Lubrication Figure 306 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-21-01
 ALL  ú
 ú  01  Page 316
 ú  Jun 18/99 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

DOWNLOCK BUNGEE
GROUND LOCK
ZERK
BMS 3-33
DOWNLOCK BUNGEE
(1 LOCATION)
ZERK
BMS 3-33
(1 LOCATION)
LOWER JURY STRUT
DOWNLOCK BUNGEE
LOWER
2 POINTS
DRAG STRUT
JURY STRUT ZERK
D
BMS 3-33
(1 LOCATION)
DOWNLOCK JURY ACTUATOR STRUT
JURY STRUT
DOWNLOCK
ZERK BUNGEE

1
BMS 3-33 UPPER
(2 LOCATIONS) DRAG STRUT
DRAG STRUT APEX 
STRUT DRAG LOWER  2  DRAG STRUT BMS 3-33 ZERK 
1  OPPOSITE SIDE (NOT SHOWN). ONE MORE LUBE POINT IS ON THE  11 POINTS  (8 LOCATIONS) 
2  ON EACH END THERE IS A GROUP OF FOUR FITTINGS  E 
Figure 306 (Sheet 3) Body Landing Gear Upper End Lubrication 

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-21-01
 ALL  ú ú 01 Page 317 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

UPPER DRAG STRUT  DOWNLOCK ACTUATOR  B 
A  B 
A 
LOWER JURY STRUT  STRUT LOWER JURY  F  UPPER JURY STRUT 
ACTUATOR DOWNLOCK  DOWNLOCK ACTUATOR (1 LOCATION) BMS 3-33 ZERK  STRUT DRAG 
DOWNLOCK ACTUATOR (1 LOCATION) BMS 3-33 ZERK  ACTUATOR DOWNLOCK 
LOCKPIN  DOWNLOCK ACTUATOR ZERK 
A-A 1 POINT  B-B 2 POINTS  (1 LOCATION) BMS 3-33 
Body Landing Gear Upper End Lubrication Figure 306 (Sheet 4) 

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-21-01
 ALL  ú ú 01 Page 318 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL 
SEE TRUNNION  A 
SEE  C 
SEE  B  SIDE BRACE 
AFT 
OUTBD 
A  STRUCTURE SUPPORT 
STRUCTURE SUPPORT 
TRUNNION BEARING ZERK  OUTER CYLINDER ZERK 
(4 LOCATIONS) BMS 3-33  1  (2 LOCATIONS) BMS 3-33 
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 SERVICING 2(11)