12-21-15
 ALL  ú ú 01 Page 306 ú Jan 20/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
STRUT DOOR SUPPORT BEAM

SUPPORT BEAM

MIL-G-23827 IS OPTIONAL TO BMS 3-33

Lubrication of the Main Landing Gear Doors and the Actuating Mechanisms Figure 301 (Sheet 5)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-21-15
 ALL  ú
 ú  01  Page 307
 ú  Jan 20/98 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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

757 MAINTENANCE MANUAL
 NO. 1, 2, AND 4 PASSENGER DOORS - SERVICING
___________________________________________
 1. General
_______
 A. This procedure contains these tasks:
 (1)  
Lubricate the No. 1, 2, or 4 passenger door.

 (2)  
Lubricate the door hinge torque tube, and body hinge torque tube.

 (3)  
Lubricate the passenger door emergency mechanism.

 (4)  
Lubricate the passenger door girt bar.

 (5)  
Lubricate the passenger door latch crank bearings and latch crank rollers.

 (6)  
Lubricate the lower harness latch.

 (7)  
Lubricate the emergency power assist support assembly bearing.

 TASK 12-21-18-643-001
 2. Lubricate the No. 1, 2, or 4 Passenger Door
___________________________________________
 A. Consumable Materials ú (1) D00633 Grease - BMS 3-33 (Recommended) ú (2) D00013 Grease - MIL-G-23827 (Alternative)
 (3)  
D00566 Lubricant, Solid Film - BMS 3-8

 (4)  
D00210 Grease - Light consistency DC-33

 B. References
 (1)  52-11-02/401, Door Lining
 C. Access
 (1)  
Location Zones
 831 No. 1 Passenger Door (Left)
 832 No. 2 Passenger Door (Left)
 836 No. 4 Passenger Door (Left)
 841 No. 1 Passenger Door (Right)
 842 No. 2 Passenger Door (Right)
 846 No. 4 Passenger Door (Right)

 (2)  
Access Panels 221AL Body Hinge Torque Tube, No. 1 Door (Left) 222AR Body Hinge Torque Tube, No. 1 Door (Right) 231AL Body Hinge Torque Tube, No. 2 Door (Left) 232AR Body Hinge Torque Tube, No. 2 Door (Right) 251AL Body Hinge Torque Tube, No. 4 Door (Left) 252AR Body Hinge Torque Tube, No. 4 Door (Right)

 D. Procedure
 S 013-002
 (1)
Remove the access panels for the body hinge torque tube.

 (2)  
Remove the escape slide cover and lower door lining (Ref 52-11-02).

 S 013-003
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-21-18
 ALL  ú ú 01.1 Page 301 ú Sep 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

 S 643-004
 (3)  
Lubricate the latch crank rollers as shown (View A, Fig. 301).

 S 643-028

 (4)  
Lubricate the door hinge torque tube as shown (View B, Fig. 301).

 S 643-029

 (5)  
Lubricate the body hinge torque tube as shown (View C, Fig. 301).

 S 643-030

 (6)  
Lubricate the guide arm as shown (View D, Fig. 301).

 S 643-031

 (7)  
Lubricate the activate/deactivate mechanism for the No. 1 or 2 passenger door as shown (View D, Fig. 302).

 S 643-032

 (8)  
Lubricate the girt bar mechanism as shown (View E, Fig. 302).

 S 643-005

 (9)  
Lubricate the handle mechanism as shown (View F, Fig. 302). Do these steps:

 (a)  
Close and latch the door.

 (b)  
Lubricate the latch crank bearings (View F, Fig. 302).

 S 643-033
 (10)
 Lubricate the girt bar slide mechanism as shown (Views B and C, Fig. 303).

 S 643-034

 (11)
 Lubricate the lower harness latch as shown (View A, Fig. 304).

 (12)
 Install the lower door lining and escape slide cover (Ref 52-11-02).
　
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