757
MAINTENANCE MANUAL

INPUT CRANK SUPPORT 
LOCK ASSEMBLY  LOCK ASSEMBLY PIN 
INPUT CRANK SUPPORT 
B 

LOCK ASSEMBLY 
PIN 
B
ELEVATOR UP 
DIRECTION 
LOCK 
ASSEMBLY 
INPUT CRANK  INPUT CRANK 
LOCK ASSEMBLY B27009-3  B-B 
(PCA LINKAGE IN UP POSITION) 
B  1 
PCA  PCA 
C 

LOCK ASSEMBLY
C
C-C
LOCK ASSEMBLY B27009-2 (PCA EXTENDED) C 1 1 INSTALL LOCK ASSEMBLY B27009-3 BEFORE B27009-2
Elevator PCA Lockout Equipment Installation
Figure 303 (Sheet 2)

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 ALL  ú ú 01 Page 310 ú Mar 20/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
 HORIZONTAL STABILIZER TRIM CONTROL SYSTEM - SERVICING (LUBRICATION)
___________________________________________________________________
 1.  General
_______
 A.  This procedure contains steps to lubricate the stabilizer ballscrew, ballnut, gimbal and pivot bearing of the horizontal-stabilizer-trim control system.
 TASK 12-21-05-643-003
 2.  Lubricate the Horizontal Stabilizer Trim Control System
_______________________________________________________
 A.  Consumable Materials
 (1)  
D00633 Grease - BMS 3-33 (Recommended)

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

 B.  Access
 (1)  
Location Zone 311 Area Aft of Pressure Bulkhead to BS 1787.45 (Left)

 (2)  
Location Zone
 330/340 Horizontal Stabilizer and Elevator

 C.  References
 (1)  
AMM 06-42-00/201, Empennage Access Doors and Panels

 (2)  
AMM 24-22-00/201, Electrical Power-Control

 (3)  
AMM 27-51-00/201, Trailing Edge Flap System

 (4)  
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems

 D.  Prepare for the Lubrication
 S 863-005
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 863-006

 (2)  
Open these circuit breakers on the overhead panel, P11, and attach DO-NOT-CLOSE tags:

 (a)  
11C6, CSEU 1L AC
 or FLT CONT ELEC 1L AC

 (b)  
11C8, CSEU 2L AC
 or FLT CONT ELEC 2L AC

 (c)  
11G17, CSEU 1R AC
 or FLT CONT ELEC 1R AC

 (d)  
11G27, CSEU 2R AC
 or FLT CONT ELEC 2R AC

 S 013-007
 WARNING:_______STAY OFF SERVICE ACCESS DOORS 311AL AND 313AL. THE WEIGHT OF A PERSON CAN CAUSE THE SPRING-LOADED LATCHES TO RELEASE. A PERSON CAN BE INJURED IF THEY FALL THROUGH THE OPEN DOOR.
 (3)  Open the access door, 311AL, to the forward stabilizer-compartment (AMM 06-42-00/201).
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 12-21-05
 ALL  ú ú 01 Page 301 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 S 863-008
 WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES
_______ WHEN HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED SURFACES. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
 (4)  Pressurize the right and center hydraulic systems
 (AMM 29-11-00/201).

 E. Procedure - Stabilizer Ballscrew, Ballnut, and Gimbal Lubrication
 S 213-010
 (1)  Make sure that the flap lever is in the takeoff position.
 S 863-011
 WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES
_______ WHEN HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED SURFACES. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
 (2)  
　
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