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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)
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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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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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