757
MAINTENANCE MANUAL

BELLCRANK 
SEE  E  SHT 5 
OPERATING RODS AFT DOOR  OPERATING RODS AFT DOOR 
FLUSH  FLUSH 
OPERATING 
BMS 3-33  RODS  BMS 3-33 
(2 LOCATIONS)  (2 LOCATIONS) 
2  2 

AFT DOOR HINGE FLUSH 
BMS 3-33 2 (1 LOCATION ON EACH HINGE; 2 HINGES ON EACH DOOR)  STRUT SHOCK 
AFT DOOR 

AFT DOOR AND DOOR MECHANISMS
(RIGHT DOOR IS SHOWN)
(VIEW IN THE AFT DIRECTION)

6 POINTS
D
2 MIL-G-23827 IS OPTIONAL TO BMS 3-33
Lubrication of the Actuating Mechanisms on the Nose Landing Gear Doors Figure 301 (Sheet 4)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757
MAINTENANCE MANUAL

Lubrication of the Actuating Mechanisms on the Nose Landing Gear Doors
Figure 301 (Sheet 5)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757 MAINTENANCE MANUAL
 MAIN GEAR AND ACTUATING MECHANISMS - SERVICING
______________________________________________
 1.  General_______
 A.  This procedure contains the data necessary to lubricate the main landing gear and the actuating mechanisms.
 TASK 12-21-14-603-001
 2.  Lubricate the Main Landing Gear and the Actuating Mechanisms____________________________________________________________
 A.  Consumable Materials
 (1)  
D00633 Grease - BMS 3-33 (Recommended)

 (2)  
D00013 Grease - MIL-G-23827 (Alternative)

 (3)  
Wheel Bearing Grease -Aircraft, General Purpose, Wide Temperature:

 (a)  
D00378 - Aeroshell 22 (Recommended)

 (b)  
D00233 - Mobilgrease 28 (Alternative)

 (c)  
D00258 - Aeroshell 5 (Alternative)

 (4)  
D00528 Lubricant - ROYCO 11MS

 B.  References
 (1)  
AMM 06-44-00/201, Wings Access Doors and Panels

 (2)  
AMM 32-00-15/201, Landing Gear Door Locks

 (3)  
AMM 32-00-20/201, Landing Gear Downlocks

 C.  Access
 (1)  
Location Zones
 731/741 Main Landing Gear

 (2)  
Access Panels
 551BB Main Landing Gear Actuator - Left
 651BB Main Landing Gear Actuator - Right

 D. Prepare to Lubricate the Main Landing Gear and the Actuating Mechanisms
 S 493-002
 (1)  Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
 S 493-003
 WARNING:_______OBEY THE INSTALLATION PROCEDURE FOR THE DOOR LOCKS. THE DOORS OPEN AND CLOSE QUICKLY. THE MOVEMENT OF THE DOORS CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
 (2)  Open the doors for the landing gear and install the door locks (AMM 32-00-15/201).
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MAINTENANCE MANUAL

 ú ú ú ú# ú ú  S 013-008 (3) Remove the main gear actuator panels 551BB/651BB (AMM 06-44-00/201). E. Lubricate the Main Landing Gear and the Actuating MechanismsS 643-004CAUTION: DO NOT USE A PRESSURE OF MORE THAN 3000 PSI WHEN YOU___________LUBRICATE THE MAIN LANDING GEAR. A PRESSURE MORE THAN 3000 PSICAN CAUSE THE LUBRICATION FITTING TO BLOW OFF.
 (1)  If a fitting does blow off, do the steps that follow: (a) Make sure there is not a blockage or unwanted material in the lubrication path. (b) Install a new lubrication fitting (Ref 20-10-29).
　
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