BMS 3-33  DOWNLOCK RELEASE LINK 
(1 LOCATION)  ZERK 
1  2 
BMS 3-33 
UPPER DOWNLOCK LINK 
UPPER DRAG STRUT  ZERK  (2 LOCATIONS) 
ZERK 
2  BMS 3-33 
BMS 3-33 
(2 LOCATIONS)  (2 LOCATIONS) 
LOWER DOWNLOCK LINK 
UPPER DOWNLOCK  2  ZERK 
LINK SHAFT ATTACH 
BOLT (2 LOCATIONS)  2  BMS 3-33 
SPRING BUNGEE  (4 LOCATIONS) 
SEE  C 

SPRING BUNGEEBMS 3-23 ZERK(6 LOCATIONS)
2
BMS 3-33
SPRING BUNGEE
(2 LOCATIONS)
RETRACT ACTUATOR
LOWER DRAG
STRUT
RETRACT ACTUATOR
LOWER DRAG STRUT ZERK
BMS 3-33 19 POINTS (2 LOCATIONS)
B
LOWER DRAG STRUT
1
A GREASE GUN WITH A FLEXIBLE TUBE IS NECESSARY FOR THESE LOCATIONS
2 POINTS
2
ONE MORE LUBE POINT IS ON THE OPPOSITE SIDE (NOT SHOWN).
C
Nose Landing Gear Upper End Lubrication Figure 302 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-21-01
 ALL  ú ú 01 Page 305 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
LOCK ACTUATOR
UPPER GEAR ACTUATORDRAG
STRUT
SEE B
UPLOCK/
DOWNLOCK RETRACTION ARM
MECHANISM

TRUNNION
SEE C
BUNGEES

LOWER
DRAG STRUT
SEE A
BULLNOSE
INSTALLATION

SHOCK STRUT
FWD
UPPER TRIPOD
BRACE
UPPER TRIPOD BRACE 1
ZERK
1
BMS 3-33LOWER TRIPOD BRACE
ZERK  (4 LOCATIONS)
BMS 3-33
(1 LOCATION)  SHOCK STRUT
1
TRIPOD BRACE
1 ZERK
BMS 3-33 LOWER TRIPOD
(4 LOCATIONS) BRACE
9 POINTS
1
ONE MORE LUBE POINT IS ON THE
A
OPPOSITE SIDE (NOT SHOWN).
Nose Landing Gear Brace and Support Lubrication
Figure 303 (Sheet 1)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-21-01
 ALL  ú ú 01 Page 306 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400 
MAINTENANCE MANUAL 
RETRACT 
RETRACT ACTUATOR  ACTUATOR 
FLUSH 
1 
BMS 3-33 
(2 LOCATIONS) 
RIGHT SIDE BRACE 
ZERK 
BMS 3-33 
(4 LOCATIONS) 
2 
LEFT SIDE BRACE 
SHOCK STRUT  ZERK 
BMS 3-33 
(4 LOCATIONS) 
2 

10 POINTS B
TRUNNION SUPPORT ZERK
BMS 3-33 (2 LOCATIONS) 34
2
THIS IS A GROUP OF FOUR FITTINGS. TRUNNION SUPPORT 3
THE LEFT SIDE IS SHOWN, THE RIGHT SIDE IS EQUIVALENT. 2 POINTS 4
A GREASE GUN WITH A FLEXIBLE TUBE IS NECESSARY
FOR THESE LOCATIONS.

C
Nose Landing Gear Brace and Support Lubrication Figure 303 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-21-01
 ALL  ú ú 01 Page 307 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

747-400 MAINTENANCE MANUAL 
SHOCK STRUT 
SIDE BRACE 
SEE  D  SEE  A 
UPPER TORSION LINK  SEE  B 
SEE  F  ACTUATOR STEERING 
SEE  C  SEE  E 

SHOCK STRUT
LOWER TRIPOD BRACE ZERK
BMS 3-33
LOWER TRIPOD BRACE
(1 LOCATION)
1 POINT
A
Nose Landing Gear Lower End Lubrication Figure 304 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-21-01
 ALL  ú ú 01 Page 308 ú Jun 18/99
　
中國航空網 m.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(8)