(2)
The lubrication of the elevator hinge bearings.

 B.  To lubricate the elevator hinge bearing, fill the bearing raceway with grease through a flush type fitting.
 C.  To get a better access to lubricate the flush fittings, turn the
 elevators to a full up position.

 TASK 12-21-18-643-001
 2.  Elevator Hinge Bearings Lubrication___________________________________
 A.  Special Tools and Equipment
 (1)
3ME65B05730 - 1, Elevator Lock Assembly - Outboard, Left Hand

 (2)
3ME65B05730 - 2, Elevator Lock Assembly - Outboard, Right Hand

 (3)
2TE65B00184 - Elevator Lock Assembly - Inboard

 B.  Standard Tools and Equipment
 (1)
Grease gun

 (2)  
Special grease gun (Optional) - a grease gun with extended nipple and 45 degrees bend hose.

 C.  Consumable Materials
 (1) D00013 Grease - MIL-G-23827
 D.  References
 (1) 06-09-06/201, Elevator Control System Access Doors and Panels
 E.  Access
 (1)  
Location Zone 333-343 Horizontal Stabilizer, Front Spar to Rear Spar 336 Outboard Elevator, LH 335 Inboard Elevator, LH 345 Inboard Elevator, RH 346 Outboard Elevator, RH

 (2)  
Access Panel 334HB, 344HB Inboard Elevator Actuator Access Panel 334LB, 344LB Horizontal Stabilizer Trailing Edge Access Panel 335BB, 345BB Leading Edge Hinge Maintenance Access Door 335DB, 345DB Leading Edge Actuator Access Door 335JB, 345JB Leading Edge Hinge Maintenance Access Door 336BB, 346BB Leading Edge Hinge Maintenance Access Door 336DB, 346DB Leading Edge Actuator Access Door 336JB, 346JB Leading Edge Hinge Maintenance Access Door 336MB, 346MB Leading Edge Hinge Maintenance Access Door 336QB, 346QB Leading Edge Hinge Maintenance Access Door

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
747-400 MAINTENANCE MANUAL
 F. Procedure
 S 013-011
 (1)  
Open the access panels (Ref 06-09-06/201).

 S 483-014

 (2)  
Do this task if you will lubricate the outboard elevator hinge points:

 (a)
Manually move the elevator to the full up position.

 (b)  
Hold the outboard elevator to the full up position.

 (c)  
Install the outboard elevator lock tool (Fig. 302).

 S 483-015
 (3)  Do this task if you will lubricate the inboard elevator hinge points:
 (a)  
Install inboard elevator holding tool, 2TE65B00184 (Fig. 302).

 (b)  
Use the holding tool to move the elevator to the full up position.

 S 643-001
 (4)  If a special grease gun is available, do these steps to lubricate the elevator hinges:
 (a)  
Remove the hinge covers (Fig. 301).

 (b)  
Lubricate the elevator hinges.

 S 643-006
 (5)  If a special grease gun is not available, lubricate the elevator hinges with the standard grease gun:
 (a)  
Remove the hinge covers (Fig. 301).

 (b)  
Lubricate the elevator hinges.

 S 083-016
 (6) Do the following task to remove the outboard elevator lock tool:
 (a)  
Remove the elevator lock tool and manually hold the elevator in the up position.

 (b)  
Lower the elevator carefully.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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

747-400
MAINTENANCE MANUAL

ELEVATOR HINGE
SEE A ELEVATOR HINGE
SEE B
ELEVATOR HINGE
SEE A ELEVATOR HINGE
SEE A
INBOARD ELEVATOR (LEFT SIDE SHOWN;
RIGHT SIDE OPPOSITE)
ELEVATOR HINGE
SEE B
ELEVATOR HINGE OUTBOARD ELEVATOR
SEE A
(LEFT SIDE SHOWN;
RIGHT SIDE OPPOSITE)

Elevator Lubrication Figure 301 (Sheet 1)
　
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