ALTERNATE ANTISKID MODULE ASSEMBLY F 
Brake Control System - Component Location Figure 102 (Sheet 4)
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FAULT ISOLATION/MAINT MANUAL
L WING GEAR 
SEE G
ANTISKID SHUTTLE VALVE ASSEMBLY 
SEE H SHT 6 
R WING GEAR SEE G 
PRESSURE COMPENSATED FLOW REGULATOR (4 LOCATIONS) ANTISKID SHUTTLE VALVE MODULE ASSEMBLY 
SEE H SHT 6 
FWD INBD 
L OR R WING GEAR G 
Brake Control System - Component Location 
Figure 102 (Sheet 5)
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FAULT ISOLATION/MAINT MANUAL
NORMAL ANTISKID 
HYDRAULIC INPUT 
SUPPORT LINES (4 LOCATIONS) 
BRACKET
ALTERNATE ANTISKID HYDRAULIC INPUT LINES (2 LOCATIONS) ANTISKID SHUTTLE 
(REF) VALVE ASSEMBLY 
ANTISKID SHUTTLE 
VALVE ASSEMBLY
SEE I 
PRESSURE
BRAKE PRESSURE COMPENSATEDLINES (4 LOCATIONS) FLOW REGULATORS(REF) (4 LOCATIONS BODY GEAR ONLY) 
ANTISKID SHUTTLE VALVE ASSEMBLY 
H FROM SHT 5
ANTISKID SHUTTLE VALVE (4 LOCATIONS) ANTISKID SHUTTLE VALVE ASSEMBLY 
FILTER (4 LOCATIONS) 
I 
Brake Control System - Component Location
Figure 102 (Sheet 6)
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747-400 FAULT ISOLATION/MAINT MANUAL 
AUTOBRAKE PRESSURE CONTROL MODULE 
SEE J 
SYSTEM 4 RETURN LINE (REF) 
SOLENOID VALVE PRESSURE SWITCH, YCJS01 
SERVO CONTROL SYSTEM 4 
VALVE, YCJV02 PRESSURE (REF) 
SOLENOID VALVE, 
YCJV01
BRAKE PRESSURE 
LINE (REF)
INLET FILTER 
AUTOBRAKE PRESSURE CONTROL MODULE, M439 J 
Brake Control System - Component Location 
Figure 102 (Sheet 7)
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FAULT ISOLATION/MAINT MANUAL
AUTOBRAKE SHUTTLE VALVE 
SEE K 
METERED PRESSURE LINE (REF) 
BRAKE L OR R PRESSUREHYDRAULIC SWITCH, S281PRESSURE LINE (REF) OR S280 
SHUTTLE AUTOBRAKE 
VALVE HYDRAULIC PRESSURE LINE (REF) 
NOTE: LH AUTOBRAKE SHUTTLE VALVE SHOWN 
AUTOBRAKE SHUTTLE VALVE
RH SIMILAR. 
K 
Brake Control System - Component Location Figure 102 (Sheet 8) 
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747-400 FAULT ISOLATION/MAINT MANUAL 
UPPER DECK FLOOR (REF) 
NO. 1 ENTRY DOOR 
BRAKE PEDAL  
BUS SWITCH  
SEE  L  
BRAKE-PEDAL-BUS  
LEVER ARM  
(REF) 
SUPPORT BEAM (REF) 
L OR R BRAKE-PEDAL-BUS SWITCH, S1595 OR S1596 
BRAKE PEDAL BUS SWITCH LEFT SIDE SHOWN, RIGHT SIDE SIMILAR 
L 
Brake Control System - Component Location Figure 102 (Sheet 9)
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