757 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 4(65)

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____ the center hydraulic system supplies pressure to the left STCM.
 TASK 27-41-07-024-001
 2.  Remove the Brake Pressure Switch
________________________________
 A.  Equipment
 (1)  
Gage Assembly - B27039-2 (Part of the Elevator
 and Stabilizer Rigging Equipment, B27039-1)

 (2)  
Rig Pins from Set B20003-XX (AMM 20-10-24/201):

 (a)  
E/ST1 - P/N B20003-21

 (b)  
E/ST2 - P/N B20003-21

 B.  
References

 (1)  
06-42-00/201, Empennage Access Doors and Panels

 (2)  
20-10-24/201, Rig Pins

 (3)  
24-22-00/201, Electrical Power - Control

 (4)  
27-41-00/501, Horizontal Stabilizer Trim Control System

 (5)  
29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems

 C.  
Access

 (1)  
Location Zones 211/212 Control Cabin 311/312 Area Aft of Pressure Bulkhead to BS 1787.45

 (2)  
Access Panel
 311AL Forward Stabilizer Compartment

 D.  
Prepare for the Removal

 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 864-002
 S 864-003
 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. INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
 (2) Supply power to the right hydraulic system (AMM 29-11-00/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-41-07
 ALL  ú ú 01 Page 401 ú May 20/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

CONNECTOR END
O-RING
STABILIZER TRIM CONTROL MODULES (STCMs)  BACKUP RING  PRESSURE SWITCH 
SEE  A  WRENCH FLATS 
BRAKE PRESSURE SWITCH 
B 
ST1A  ST2B  RIG PIN HOLE ST2AE/ST2  PRESSURE LINE TO THE ELEVATOR FEEL COMPUTER 
LEFT STCM  ST1B  PRESSURE LINE  RETURN LINE RIGHT STCM 

BRAKE PRESSURE SWITCH 
SEE  B 
SWITCH BRAKE PRESSURE BSEE  RIG PIN HOLE E/ST1 LINE RETURN PRESSURE LINE FOR MOVEMENT PRESSURE LINE FOR AIRPLANE NOSE UP MOVEMENT AIRPLANE NOSE DOWN FOR BRAKE RELEASE PRESSURE LINE STABILIZER TRIM CONTROL MODULES (STCMs) 
A 
Brake Pressure Switch Installation Figure 401 (Sheet 1) 

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH STAB TRIM LEVERS ON THE ú

 27-41-07
 CONTROL STAND  ú ú 02 Page 402 ú Dec 20/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

CONNECTOR END
O-RING
STABILIZER TRIM 
(STCMs) CONTROL MODULES  BACKUP RING  PRESSURE SWITCH 
SEE  C  WRENCH FLATS 
BRAKE PRESSURE SWITCH 
D 
PRESSURE LINE TO THE 
ELEVATOR FEEL COMPUTER  RETURN LINE 
PRESSURE LINE 
LEFT STCM  RIGHT STCM 

BRAKE 
PRESSURE 
SWITCH 
RETURN  SEE  D 
LINE 
PRESSURE BRAKE  PRESSURE LINE FOR BRAKE RELEASE 
SWITCH 
PRESSURE LINE FOR 
SEE  D  PRESSURE LINE FOR  AIRPLANE NOSE DOWN 
AIRPLANE NOSE UP  MOVEMENT 
MOVEMENT 

STABILIZER TRIM CONTROL MODULES (STCMs)
C

Brake Pressure Switch Installation
Figure 401 (Sheet 2)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH ALTERNATE STAB TRIM ú

 27-41-07
 SWITCHES ON THE CONTROL STAND  ú ú 02 Page 403 ú Dec 20/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
　
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