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A

747-400 MAINTENANCE MANUAL 
SEE  B 
WALKING BEAM 
BEARING AFT TRUNNION 
SEE  A 
CSEE ACTUATOR RETRACT  SEE  E  STRUT JURY  SIDE STRUT DSEE 
BRACE DRAG 
STRUT SHOCK FWD 

TORSION LINKS
Wing Landing Gear Upper End Lubrication Figure 311 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-21-01
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A

747-400 MAINTENANCE MANUAL
RETRACT ACTUATOR
WALKING BEAM SUPPORT FLUSH
BMS 3-33 WALKING BEAM
(1 LOCATION) ZERK
2 WALKING BEAM BMS 3-33
ZERK (1 LOCATION) 2 BMS 3-33
(1 LOCATION) 2
WALKING BEAM RETRACT ACTUATOR
1 ZERK
RETRACT
BMS 3-33 ACTUATOR FWD (4 LOCATIONS)
2
7 POINTS
A
WALKING BEAM
AFT ARM
SHOCK STRUT
FORWARD ARM

WALKING BEAM
3 ZERK
FWD  BMS 3-33
(6 LOCATIONS)
6 POINTS
1 ONE MORE LUBE POINT IS ON THE OPPOSITE SIDE (NOT SHOWN).
B
2 TO GET ACCESS TO THE GREASE FITTINGS, OPEN PANELS 572AB ON THE LEFT SIDE AND 672AB ON THE RIGHT SIDE.
3 THERE IS A LOCATION ON THE AFT ARM OF THE WALKING BEAM (NOT SHOWN).
Wing Landing Gear Upper End Lubrication Figure 311 (Sheet 2)
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 12-21-01
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747-400
MAINTENANCE MANUAL

RETRACT ACTUATOR BUSHING 
5 
(4 LOCATIONS)  1 
TRUNNION 
RETRACT ACTUATOR 
RETRACT ACTUATOR ZERK  1 FWD RETRACT ACTUATOR FLUSH 
(3 LOCATIONS) BMS 3-33  (2 LOCATIONS) BMS 3-33  SPINDLE 
C 9 POINTS  STRUCTURE ZERK  FITTING ASSEMBLY  4 (4 LOCATIONS) SIDE STRUT BMS 3-33 ZERK 
BMS 3-33 
(1 LOCATION) 
1 4  ONE MORE LUBE POINT IS ON THE OPPOSITE SIDE (NOT SHOWN). THIS IS A GROUP OF FOUR FITTINGS  SIDE STRUT 
5  ALL COMPOUND FROM THE JOINT. . APPLY BMS 3-23 OR BMS 3-26 THE BUSHING FLANGE BETWEEN THE . LUBRICATE THE JOINT . LUBRICATE THE JOINT AGAIN TO REMOVE COMPOUND, POINT THE SPRAY AROUND BUSHING AND THE MATING LUG SURFACE. BUSHINGS WITH PAINTED WITNESS LINE (OR EQUIVALENT IDENTIFICATION MARK), DO THESE STEPS:  FWD  5 POINTS D 
Wing Landing Gear Upper End Lubrication Figure 311 (Sheet 3) 

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747-400
MAINTENANCE MANUAL

ATTACH BOLTS FITTING ZERK  STRUT SHOCK 
(2 LOCATIONS) BMS 3-33 
SEE  K 
UPPER JURY STRUT 
SEE DOWNLOCK BUNGEE  I  LOWER JURY STRUT  SEE  F 
SEE  H  DRAG BRACE 
SEE  G  SEE  J 
INBD  FWD 
LOWER SIDE STRUT 
2 POINTS 
E 

JURY STRUT ZERK
BMS 3-33 (3 LOCATIONS)
3 POINTS F
Wing Landing Gear Upper End Lubrication Figure 311 (Sheet 4)
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