B.
Reference

 (1)  
AMM 25-22-00/201, Passenger Seats

 (2)  
AMM 25-27-15/401, Passenger Cabin Floor Covering

 (3)  
AMM 32-41-00/501, Hydraulic Brake System

 C.
Access

 (1)  
Location Zone
 107 Forward Half of Cabin

 (2)  
Access Panels
 1103 Forward Access Panel

 D.
Install Hydraulic Brake Control Cables

 S 434-016
 (1)  Put the replacement cables (E, F, G, and H) through the fairleads and connect them to their related control quadrants (3) of the brake metering valve.
 NOTE: You can mix zinc-only coated cables and tin-over-zinc coated
____ cables if you replace the opposite cables in a given cable loop with cables of the same type. For example, in the brake control cable loops, Figure 401, if you replaced Cable A (LGBA1), you must make sure the Cable B (LGBA2), Cable C (LGBB1), and Cable D (LGBB2) are all of the same type. This will prevent asymmetric cable stretch that can degrade the cable rigging.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500MAINTENANCE MANUAL 
CABLE E (LGBA1)  SEE  C 
CABLE F (LGBA2) 

PARKING
BRAKE
CABLE G (LGBB1) CABLE H (LGBB2)
CAPTAIN'S BRAKE PEDAL
CABLE C (LGBB1)
CABLE D (LGBB2)

SEE A
CABLE A (LGBA1) CABLE B (LGBA2)
CABLE F (LGBA2)
CABLE E (LGBA1)

TURNBUCKLES
SEE B
CABLE G (LGBB1) CONTROLCABLE H (LGBB2)
BELL CRANK TURNBUCKLES
SEE B
CABLE E (LGBA1)
CABLE F (LGBA2)
TIE ROD
CABLE G (LGBB1) HORIZONTAL QUADRANT
CABLE H (LGBB2)
A

Brake Control Cables Installation
Figure 401 (Sheet 1)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
CABLE G (LGBB1)
LOCKING CLIP (2) (8 LOCATIONS)
CABLE E (LGBA1)
CABLE A (LGBA1) CABLE F (LGBA2) CABLE H (LGBB2)
CABLE C (LGBB1)
LOCKWIRE
CABLE D (LGBB2) (4 LOCATIONS)
TURNBUCKLE
INBD
(4 LOCATIONS)
FWD CABLE H (LGBB2) CABLE B (LGBA2)
CABLE G (LGBB1) CABLE F (LGBA2)
B
CABLE E (LGBA1)
OUTBD  FWD 
CONTROL QUADRANT (REF) BRAKE METERING VALVE 
C 
1  2 
LENGTH 

Brake Control Cables Installation
Figure 401 (Sheet 2)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
CABLE REF  FUNCTION  REQ'D NO.  INCHES LENGTH  SIZE CABLE  FITTING 1  2 FITTING 
A  LGBA1  2  17.2  3/32 X 7X7  MS2126OL3RH  BACT14A3 
B  LGBA2  2  12.5  3/32 X 7X7  MS2126OL3RH  BACT14A3 
C  LGBB1  2  15.2  3/32 X 7X7  MS2126OL3RH  BACT14A3 
D  LGBB2  2  10.5  3/32 X 7X7  MS2126OL3RH  BACT14A3 

737-300 FORWARD BRAKE CONTROL CABLES

CABLE REF  FUNCTION  REQ'D NO.  INCHES LENGTH  SIZE CABLE  FITTING 1  2 FITTING 
E  LGBA1  2  600.7  3/32 X 7X7  MS2126OL3LH  BACT14A3 
F  LGBA2  2  605.3  3/32 X 7X7  MS2126OL3LH  BACT14A3 
G  LGBB1  2  601.7  3/32 X 7X7  MS2126OL3LH  BACT14A3 
H  LGBB2  2  606.4  3/32 X 7X7  MS2126OL3LH  BACT14A3 
　
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