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A

747-400
MAINTENANCE MANUAL

COUPLING

FILL UNTIL GREASE FLOWS OUT THE ADJACENT LUBRICATION HOLE
THE ANGLE GEARBOX IN THE RIGHT AFT WHEEL WELL IS SHOWN. THE ANGLE GEARBOXES AT THE OTHER LOCATIONS ARE EQUIVALENT
REMOVE THE DRAIN COVER TO LUBRICATE THE GEARS. IF A TUBING RUN INTERFERES WITH REMOVAL OF THE DRAIN COVER ON THE OUTBOARD UNITS, REMOVE THE GEARBOXES (AMM 27-51-21/401), ROTATE THE GEARS, AND APPLY GREASE TO THE TEETH EVENLY. DO NOT COMPLETELY FILL THE GEARBOX
Trailing Edge Flap Drive System Servicing (Lubrication)
Figure 309 (Sheet 3)

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747-400
MAINTENANCE MANUAL

COUPLING FLUSH
BMS 3-33
(3 LOCATIONS EACH COUPLING)
4
COUPLING  6 POINTS 
FLUSH 
C 
BMS 3-33 
(3 LOCATIONS EACH 
COUPLING) 
4 

6 POINTS 
4  FILL UNTIL GREASE FLOWS OUT OF 
THE ADJACENT LUBRICATION HOLE  D 

Trailing Edge Flap Drive System Servicing (Lubrication)
Figure 309 (Sheet 4)

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A 747-400 MAINTENANCE MANUAL
COUPLING FLUSH
BMS 3-33
(3 LOCATIONS EACH COUPLING)
4
6 POINTS
E

COUPLING FLUSH
BMS 3-33
(3 LOCATIONS EACH COUPLING)
4
3 POINTS
4 FILL UNTIL GREASE FLOWS OUT OF THE ADJACENT LUBRICATION HOLE
F
Trailing Edge Flap Drive System Servicing (Lubrication) Figure 309 (Sheet 5)
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COUPLING FLUSH
BMS 3-33
(3 LOCATIONS EACH COUPLING)
4
SLEEVE AND TEFLON RETAINER
BMS 3-33
(1 LOCATIONS) 8
4  FILL UNTIL GREASE FLOWS OUT OF THE ADJACENT LUBRICATION HOLE
8 THE INSTALLATION SHOWN IS AT THE SECOND POSITION OUTBOARD FROM THE CENTER. INSTALLATIONS AT OTHER LOCATIONS ARE EQUIVALENT
747-400
MAINTENANCE MANUAL

TORQUE TUBE
SUPPORT
BEARING

INBD
FWD
6 POINTS G
1 POINT H
Trailing Edge Flap Drive System Servicing (Lubrication)
Figure 309 (Sheet 6)

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747-400 MAINTENANCE MANUAL
 SPOILER CONTROL SYSTEM - SERVICING (LUBRICATION)
________________________________________________
 1.  General_______
 A.  There are two tasks in this procedure. There is a task to lubricate the spoiler system. There is also a task to lubricate the spoiler differential mechanism.
 TASK 12-21-21-643-001
 2.  Spoiler System Lubrication__________________________
 A.  Special Tools and Equipment
 (1)  
G27001-1 Spoiler Actuator Locking Tool (Spoilers No. 5 and 8)

 (2)  
G27002-1 Spoiler Actuator Locking Tool (Spoiler No. 6 and 7)

 (3)  
G27032-8 Outboard Spoiler Actuator Lock (Recommended)

 (4)  
G27032-1 Outboard Spoiler Actuator Lock (Alternative)
　
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